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1. Busbar trunking
systems LXA/LXC
from 800 A
CatalogueLV72•2005
8PS
For internal usage
sivacon
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2. 4GNCVGF ECVCNQIU %QPVGPVU
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Controlgear for Industry
Order No.:
E86060-K1002-A101-A4-7600
LV 10 Contactors and contactor assemblies · Semiconductor
controlgear, soft starters, controllers · Circuit-breakers ·
Overload relays · Load feeders · Switch disconnectors
and fuses · SIMIREL time, monitoring, coupling relays
and converters · Control and signaling devices · BETA
electrical installation technology: Selected products ·SIGUARD safety systems · SIDAC-T transformers ·SIDAC-S power supplies · ALPHA FIX terminal blocks
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Products and Systems for
Power Distribution
Order No.:
E86060-K1801-A101-A4-7600
LV 30 BETA protect installation equipment · Communication-
capable circuit-breakers · Compact circuit-breakers
(MCCB) · Air circuit-breakers (ACB) · SENTRIC switch
disconnectors and fuse switch disconnectors · Switch-
gear, distribution systems and cabinets
5+8#%10 25
Busbar Trunking Systems CD,
BD01, BD2 up to 1250 A
Order No.:
E86060-K1870-A101-A1-7600
LV 70 Busbar Trunking Units, Overview ·CD System (25 A - 40 A) ·BD01 System (40 A - 160 A) ·BD2 System (160 A - 1250 A)
5+8#%10 25
Busbar Trunking Systems
CD, BD01, BD2 up to 1250 A
Order No.:
E86060-P1870-A101-A2-7600
LV 70 P Price List
System CD (25 A up to 40 A) · System BD01 (40 A up to
160 A) · System BD02 (160 A up to1250 A)
5+8#%10 25
Busbar Trunking Systems
BD2A/BD2C, LDA/LDC
from 160 A to 5000 A
Order No.:
E86060-T1871-A101-A1-7600
LV 71 T Technical Information
System Overview · BD2A/BD2C System ·
LDA/LDC System · Further Information
5+8#%10 25
Busbar Trunking Systems
LXA/LXC over 800 A
Order No.:
E86060-T1872-A101-A1-7600
LV 72 T Technical Information
System Overview · LXA/LXC System ·
Further Information
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The Offline Mall for AD
Order No.:
E86060-D4001-A110-C3-7600
CA 01 All the products from Automation and Drives including
the products from the catalogs listed above.
# /CNN
Internet:
http://www.siemens.com/automation/mall
All the products from Automation and Drives including
the products from the catalogs listed above.
4GIKUVGTGF VTCFGOCTMU 'ZRNCPCVKQPU
All product designations may be trademarks or product
names of Siemens AG or supplier companies whose
use by third parties for their own purposes could violate
the rights of the owners.
Further information about low-voltage switchgear and
controlgear is available on the Internet at:
http://www.siemens.com/lowvoltage
6[RG If a type designation contains * characters, it is not
complete and must be supplemented according to specifi-
cations in the list.
1TFGT 0Q For an order, BVP: must be placed before the
Order No. stated in the catalog (034262 -- BVP:034262).
2CEMCIKPI UKG
25 The packaging size defines the
number of units, sets or meters, for outer packaging.
Only the quantity defined by the packaging size or a
multiple thereof can be ordered!
/9BHQB8IP 6HLWH 0LWWZRFK $SULO
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3. Catalogs of the
Automation and Drives Group (AD)
Further information can be obtained from our branch offices listed
in the appendix or at www.siemens.com/automation/partner
AD/3U/En 17.02.05
Automation and Drives Catalog
Interactive catalog on CD-ROM
• The Offline Mall of Automation and Drives CA 01
Automation Systems for Machine Tools
SINUMERIK SIMODRIVE NC 60
Drive Systems
Variable-Speed Drives
SINAMICS G130 Drive Converter Chassis Units,
SINAMICS G150 Drive Converter Cabinet Units
D 11
SINAMICS G110 Inverter Chassis Units D 11.1
SINAMICS S120 Servo Control Drive System D 21.2
SINAMICS S150 Drive Converter Cabinet Units D 21.3
DC Motors DA 12
SIMOREG DC MASTER 6RA70 Digital Chassis
Converters
DA 21.1
SIMOREG K 6RA22 Analog Chassis Converters DA 21.2
SIMOREG DC MASTER 6RM70 Digital Converter
Cabinet Units
DA 22
SIMOVERT PM Modular Converter Systems DA 45
SIEMOSYN Motors DA 48
MICROMASTER 410/420/430/440 Inverters DA 51.2
MICROMASTER 411/COMBIMASTER 411 DA 51.3
SIMOVERT MV Medium-Voltage Drives DA 63
SIMOVERT MASTERDRIVES Vector Control DA 65.10
SIMOVERT MASTERDRIVES Motion Control DA 65.11
Synchronous and asynchronous servomotors for
SIMOVERT MASTERDRIVES
DA 65.3
SIMODRIVE 611 universal and POSMO DA 65.4
Low-Voltage Three-Phase-Motors
Squirrel-Cage Motors, Totally Enclosed, Fan-Cooled M 11
Automation Systems for Machine Tools SIMODRIVE NC 60
• Main Spindle Motors
• Feed Motors
• Converter Systems SIMODRIVE 611/POSMO
Drive and Control Components for Hoisting Equipment HE 1
Electrical Installation Technology
ALPHA Small Distribution Boards and
Distribution Boards
ET A1
ALPHA FIX Terminal Blocks ET A5
BETA Modular Installation Devices ET B1
DELTA Switches and Outlets ET D1
GAMMA Building Management Systems ET G1
Factory Automation Sensors FS 10
Human Machine Interface Systems SIMATIC HMI ST 80
Industrial Communication for
Automation and Drives
IK PI
PDF: These catalogs are only available as pdf files.
Low-Voltage Controls and Distribution Catalog
Low-Voltage Switchgear – Controlgear for Industry LV 10
Power Distribution – Products and Systems
for Low-Voltage Power Distribution
LV 30
SIDAC reactors and filters LV 60
SIVACON 8PS Busbar trunking systems
CD, BD01, BD2 up to 1250 A
LV 70
Low-Voltage Controlgear, Switchgear and Systems LV 90
Motion Control System SIMOTION PM 10
Process Instrumentation and Analytics
Field Instruments for Process Automation
Measuring Instruments for Pressure,
Differential Pressure, Flow, Level and Temperature,
Positioners and Liquid Meters
FI 01
PDF: Indicators for panel mounting MP 12
SIREC Recorders and Accessories MP 20
SIPART, Controllers and Software MP 31
SIWAREX Weighing Systems WT 01
Continuous Weighing and Process Protection WT 02
Gas Analysis Equipment for the Process Industry PA 10
PDF: Process Analytics,
Components for the System Integration
PA 11
SIPAN Liquid Analysis PA 20
SIMATIC Industrial Automation Systems
SIMATIC PCS Process Control System ST 45
PDF: SIMATIC S5/505 Automation Systems ST 50
Products for Totally Integrated Automation and
Micro Automation
ST 70
SIMATIC PCS 7 Process Control System ST PCS 7
PDF: Add-ons for the SIMATIC PCS 7
Process Control System
ST PCS 7.A
pc-based Automation ST PC
SIMATIC Control Systems ST DA
SIPOS Electric Actuators
Electric Rotary, Linear and Part-turn Actuators MP 35
Electric Rotary Actuators for Nuclear Plants MP 35.1/.2
Systems Engineering
Power supplies SITOP power KT 10.1
System cabling SIMATIC TOP connect KT 10.2
System Solutions
Applications and Products for Industry are part of the
interactive catalog CA 01
TELEPERM M Process Control System
AS 235, AS 235H and AS 235K automation systems PLT 111
PDF: AS 488/TM automation systems PLT 112
Operating and monitoring with WinCC/TM PLT 123
CS 275 bus system PLT 130
LV72_en_U3.fm Seite 2 Mittwoch, 6. April 2005 2:56 14
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4. The information provided in this catalog contains descriptions
or characteristics of performance which in case of actual use
do not always apply as described or which may change as a
result of further development of the products. An obligation
to provide the respective characteristics shall only exist if
expressly agreed in the terms of contract. Availability and
technical specifications are subject to change without notice.
Order No. E86060-K1872-A101-A1-7600
Siemens AG
Automation and Drives
Low-Voltage Controls and Distribution
Postfach 48 48
90327 NÜRNBERG
FEDERAL REPUBLIC OF GERMANY
www.siemens.com/lowvoltage
Token fee 0.00 €
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5. CatalogueLV72•2005BusbartrunkingsystemsLXA/LXCfrom800A
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6. s
© Siemens AG 2005
SIVACON 8PS
Busbar trunking
systems LXA/LXC
from 800 A
Catalogue LV 72 · 2005
Introduction
1
System overview
2
LXA/LXC busbar trunking system
3
Planning und Engineering
4
Annex
5
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7. Siemens LV 72 · 20052
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8. Siemens LV 72 · 2005
1/2 Welcome to Automation and Drives
1/3 Low-voltage switchgear -
the basis for progressive solutions
1/4 Totally Integrated Automation -
innovations for more productivity
1/6 Totally Integrated Power -
energy distribution and management
from one source
1/8 SIVACON 8PS –
Busbar Trunking Systems in Action
1/10 SIVACON 8PS –
Engineering Tools for precisely
dimensioned, economical solutions
Introduction
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9. Welcome to
Automation and Drives
1/2
We would like to welcome you to Automation
and Drives and our comprehensive range of
products, systems, solutions and services for
production and process automation and
building technology worldwide.
With Totally Integrated Automation and
Totally Integrated Power, we deliver solution
platforms based on standards that offer you
a considerable savings potential.
Discover the world of our technology now. If
you need more detailed information, please
contact one of your regional Siemens
partners.
They will be glad to assist you.
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10. 1/3
Low-voltage switchgear and controlgear –
the basis for progressive solutions
Everyday life would be unimaginable without electric power. Competence and innovations
in switching and electrical installation technology are prerequisites so that power can be
used without danger and user-friendly in industrial facilities and buildings. We have been
providing you with these prerequisites for more than 110 years and are permanently de-
veloping new features – innovations which permit you to use power more safely and eco-
nomically.
Low-voltage switchgear from Siemens offers a comprehensive and innovative range of
products covering switching devices for load feeders or the distribution of power, control
and signaling devices as well as complete cabinet systems. Multi-functional, uniform con-
cepts such as Totally Integrated Power, Safety Integrated or ECOFAST additionally permit
our product portfolio to be combined into optimized systems.
All in all, we can provide you with innovative components for switching and electrical in-
stallation technology which utilize state-of-the-art features such as integration and com-
munication as the basis for advanced and uniform solutions which provide you with many
benefits.
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11. 1/4
With the launch of Totally Integrated Automation in 1996, we
were the first ones on the market to consistently implement
the trend from equipment to an integrated automation
solution, and have continuously improved the system ever
since.
Whether your industry is process- and production-oriented or
a hybrid, Totally Integrated Automation is a unique common
solution platform that covers all the sectors.
Totally Integrated Automation is an integrated platform for the
Totally Integrated Automation –
innovations for more productivity
Industrial
Ethernet
PROCESS FIELD
GAMMA instabus
Building
Technology
ERP
Enterprise
Resource
Planning
MES
Manufacturing
Execution
Systems
Ethernet
Ethernet
Material
Management
Equipment
Management
Production
Order
Management
Production
Operations
Recording
SIMATIC NET
Industrial
Communication
Industrial Wireless
Communication/
MOBIC
ECOFAST IP65
Decentral
Automation System
Micro-Automation
and
Actuator-Sensor
Interface Level
AS-Interface
PROFIBUS
Industrial
Ethernet
Safety Integrated
Control SINAUT Telecontrol
System
SIMATIC
Software
SIMATIC
Machine Vision
SIMATIC
PC-based Automation
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12. 1/5
entire production line - from receiving to technical processing
and production areas to shipping. Thanks to the system-oriented
engineering environment, integrated, open communications
as well as intelligent diagnostics options, your plant now
benefits in every phase of the life cycle.
In fact, to this day we are the only company worldwide that
can offer a control system based on an integrated platform
for both the production and process industry.
SIMODRIVE
Plant
Information
Management
Detailed
Production
Scheduling
SIMATIC IT Framework
Production Modeler
Product Specification
Management System
Laboratory Information
Management System
Field Instru-
mentation/
Analytics
SIMATIC PCS 7
Process Control
System
SIMATIC
Controller/
Automation
System
SIMOCODE-DP
Motor
Protection
and Control
SIMATIC HMI
Human Machine
Interface
Drive Systems
PROFIBUS PA
SENTRON
Circuit
Breakers
HART
Sensor
Technology
IQ-Sense
SIMATIC
Distributed
I /O
SIMOTION
Motion Control
System
SINUMERIK
Numeric
Control
SINAMICS
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13. 1/6
Totally Integrated Power –
energy distribution and management
from one source
Planning and configuration
Products and systems
Communications
Process/production
automation
Load
manage-
ment
HMI Graphs Prognoses
PROCESS FIELD BUS
Totally Integrated Power™ by Siemens offers integrated
solutions for energy distribution in functional and industrial
buildings covering everything from medium-high voltage to
power outlets.
Totally Integrated Power™ is based on integration in
planning and configuration as well as coordinated products
and systems. In addition, it features communications and
software modules for connecting power distribution systems
to industrial automation and building automation, thereby
offering a substantial savings potential.
£ 110 kV
U
I
coso
P
W
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14. 1/7
Substation
Distribution
Maintenance
task
Hall 1 Air conditioning system
checkup
Distribution 3 Replacing circuit
breaker contacts
Infeed II Replacing meters
Message/
error
manage-
ment
Selective
protection
Protocols Power
quality
Cost center
CODES
V=VACATION
H=HOLIDAY
S=SICK
REGULAR HOLIDAY OTHER
OVER THE HOURS
TIME ONE-HALF
SICK VACATION
TOTAL HOURS
DATE
IN
OUT
IN
OUT
OVERTIME
SUN MON TUE WED THUR FRI SAT SUN TOTAL
TOTAL HOURS
DATE
IN
OUT
IN
OUT
OVERTIME
SUN MON TUE WED THUR FRI SAT SUN TOTAL
TOTAL HOURS
DATE
IN
OUT
IN
OUT
OVERTIME
SUN MON TUE WED THUR FRI SAT SUN TOTAL
DATE:
EMPLOYEE
COST CENTER
PAY PERIOD BEGINNING
PAY PERIOD ENDING
central ON
OFF
local ON
OFF
tripped
Building
automation
Main-
tenance
instabus EIB
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15. 1/8
The BD 01 system is quickly to install and
ideally suited for use in workshops and
trade premises, as here, at a photo-
grapher’s.
In the petrochemical industry, it is the PEC system that provides
reliable and fault-free power supply.
The ideal system for production lines
needing a great deal of power is the
LD system up to 5000 A.
SIVACON 8PS -
Busbar Trunking Systems in Action
Busbar trunking systems in the low-voltge range
perform the safe and reliable transmission and
distribution of electrical power from transformer
via main distribution board and sub-distribution
board right to the load. Siemens busbar trunking
systems are the complete and efficient answer
in this area:
• The CD system for 25 A to 40 A
• The BD01 system for 40 A to 160 A
• The BD2 system for 160 A to 1250 A
• The PEC system for 800 A to 6000 A
• The LD system for 1100 A to 5000 A
• The LX system for 800 A to 6300 A
All these systems are ’Type-tested LV switchge-
ar assemblies’ (TTA) to IEC 60439-1 and -2. This
ensures that they offer a standard of safety and
reliability that meets the particularly high perfor-
mance expectations of automated production
and for building services provision.
Performance characteristics:
• Clear network structure
• Unproblematic retrofitting in the event of load
changes
• Low operating costs due to uninterrupted ser-
viceability
• Simple planning and installation
Room-covering systems for lighting installa-
tions and small loads
The CD system (up to 40 A) allows you to supply
lighting installations covering the whole expan-
se of, say, furniture showrooms, supermarkets
or greenhouses with power, and also provides
the means to easily fix them in position.
Due to its pleasing appearance, the equipment
is well suited for use in sales rooms visited by
the public. On the other hand, its high degree of
protection, to IP54, allows the CD system to be
used even in harsh environments.
The power source for loads with no fixed
location
The BD01 system is ideally suited for the power
supply (up to 160 A) in workshops and trade
premises. The trunking units are easily and
quickly to put together. The anti-rotation feature
on the tap-off units makes sure that the units are
correctly fitted and allows for easy retrofitting
even while the production is running.
Other benefits: minimum stock holding and un-
complicated planning due to one standard
frame size for five different current ratings.
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16. 1/9
Universal power distribution
The BD2 system (up to 1250 A) can supply
power to medium-size loads in buildings and in
all industrial applications. Prefabricated tap-off
units fitted with many differing component
combinations make this equipment universally
applicable. Two standard frame sizes covering
all current ratings simplify stock keeping and
planning.
Safe and reliable power transmission in the
petrochemical industry
The PEC resin-insulated system, up to 6000 A,
has a high degree of insulation protection and
thus an enormous resistance to external interfe-
rence factors. This ensures safe and reliable
transport of power even in rough weather or in
highly dust and dirt and corrosion polluted
industrial environments. Typical applications of
this system is the petrochemical industry, waste
incinerators and power stations.
High system serviceability in production
The louvred LD busbar trunking system, up to
5000 A, is the system for transporting current in
production lines with a large energy require-
ment, such as in the automotive industry. A
separate PE busbar ensures that the protective
device in such a system responds reliably even
if the current paths are relatively long. The high
short-circuit rating allows medium-voltage
switches to be used as protective elements for
the transmission of power between transformer
and main circuit-breaker. Tap-off units up to
1250 A available as standard.
Flexible power distribution in multi-storey
buildings
The LX sandwich-style system, up to 6300 A, is
used where large quantities of power need to be
transported, uninfluenced by the mounting posi-
tion of the system.
Conductor configurations with the PE conductor
insulated along its entire length, and a double-
size neutral can ensure the interference-free dis-
tribution of power in places such as radio
stations, computer centres or at internet
providers’. The system is protected to IP54 as
standard, and tap-off units up to 1250 A are
available as standard.
Siemens offers modular component cabinets for indication, control and monitoring of the
flow of power through busbar trunking systems. These cabinets are equipped with bus
interfaces, control circuit devices and power meters.
The LX busbar trunking system is the perfect equipment for multi-
storey buildings where large quantities of power need to be transpor-
ted, uninfluenced by the mounting position of the system.
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17. 1/10
Engineering tools from Siemens help generate
precisely dimensioned and economical plan-
ning and design solutions, even for complex ap-
plications.
MatSelect
Using MatSelect, product and material data can
be administered with self designed or
standardised classification systems. It has inter-
faces to Eldanorm, Datanorm, ASCII format and
ProPlan.
NetPlan
Planning software for power flow, short-circuit
calculation and device dimensioning with selec-
tivity analysis and protective against electric
shock of low-voltage networks, available in
English, German, French and Italian.
NetSelect
Selection software for protective switches to en-
able star networks to be correctly dimensioned;
available in several languages.
BusbarSelect
Selection aid for generating quotations, invitati-
ons to tender and orders for busbar trunking
systems up to 1250 A; available in several
languages.
Quotation texts
Prepared texts (in German) for generating
customer specifications in the formats: Architext
excellent, GAEB 81 and Word 97.
Should you have any queries concerning instal-
lation, functionality or application options –
please mail us at
sbts.tool_support@siemens.com
We will be pleased to assist you.
Netplan enables you to graphically represent the network and to
calculate the load flow and the prospective one-pole to all-pole short-circuit
current.
In BusbarSelect, you select the trunking units for your system from a menu,
and then transfer them into an order or quotation list.
SIVACON 8PS - Engineering Tools for
precisely dimensioned, economical solutions
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18. Siemens LV 72 · 2005
Basics of planning
busbar trunking systems
2/2 Overview
2/4 Benefits
2/4 Application
System selection criteria
2/5 Application
2/8 Technical specifications
System Overview
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19. Siemens LV 72 · 20052/2
System Overview
Basics of planning busbar trunking systems
2
■Overview
Developing a power distribution concept, including system and
component configurations, involves finding an effective solution
based on customer requirements and supplier technology. This
design information brochure for the LX busbar trunking system
for rated currents ranging from 800 A to 6300 A, is designed to
help with this task.
Descriptions of the different systems, their technical features
and areas of application are provided, as well as drawings of the
individual busbar trunking system elements. Details vital for
planning are emphasized and explained.
The section entitled, “LV 72.T 2004 - Further Information” sug-
gests approaches for creating effective planning solutions. Indi-
vidual engineering principles are introduced and detailed infor-
mation on subjects such as fire barriers and functional
endurance is provided.
Siemens offers services and engineering tools for preparing ten-
der specifications. An overview and explanation of functions and
features is also included in this section.
General
Creating a design concept for a power supply system, not only
involves observing applicable standards and regulations, but
also examining and clarifying economic and technical require-
ments. Electrical equipment, such as distribution boards and
transformers, should be selected on the basis of their suitability
in terms of the overall system – not just in terms of their individual
features.
Components should not only be appropriate for rated operation,
but should also be suitably dimensioned to withstand fault situa-
tions. A power distribution concept should also take the follow-
ing points into consideration:
• Building type, use and form (for example, high-rise building,
flat buildings and number of floors)
• Load centers and possible supply paths and locations for
transformers and main distribution boards
• Building-dependent ratings based on maximum demands per
unit area depending on what the building is used for
• Regulations and guidelines of building authorities
• Power supply company guidelines.
There will always be more than one possible solution which will
have to be assessed in terms of its technical and economic
advantages and disadvantages. In making this assessment, the
following requirements should be a priority:
• Simple and transparent design
• Long service life
• High availability
• Low fire load
• Flexible adaptation to building modifications.
These requirements are generally easy to meet with appropriate
busbar trunking systems. For this reason, engineers increasingly
favour busbar trunking systems over cable installations for
power transmission and distribution applications. Siemens of-
fers busbar trunking systems for rated currents ranging from 25
to 6300 A:
• The CD busbar trunking system from 25 to 40 A is ideal for sup-
plying lights and small consumers
• The BD01 busbar trunking system from 40 to 160 A is de-
signed for supplying workshops with tap-offs up to 63 A
• The BD2 busbar trunking systems from 160 to 1250 A is de-
signed for supplying medium-sized consumers in buildings
and in industry
• The ventilated LD busbar trunking system is designed for sup-
plying consumers with a high power consumption in industrial
applications
• The LX sandwich system is designed for supplying large
power requirements in buildings
The design information brochure LV 71.T is available for design-
ing the BD2 and LD busbar trunking systems.
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20. Siemens LV 72 · 2005 2/3
System Overview
Basics of planning busbar trunking systems
2
Busbar trunking systems
BD
01
BD0
1-K
B
BD0
1-K
B
LX
LD LX
BD01
CD
LD
BD2
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21. Siemens LV 72 · 20052/4
System Overview
Basics of planning busbar trunking systems
2
■Benefits
The complexity of today‘s buildings makes power distribution
with a high level of transparency and flexibility an indispensable
requirement. The uninterrupted provision of power is also abso-
lutely essential for production plants with multiple shifts.
Busbar trunking systems meet these demands for an economi-
cal power distribution system with simple design, fast installa-
tion, optimum flexibility and safety by offering:
• Straightforward network structures
• Minimum space requirements
• Easy retrofitting with sudden changes in location and con-
sumer ratings
• High short-circuit rating and low fire load
The LX busbar trunking system is a type-tested low-voltage as-
sembly (TTA) in accordance with IEC/EN 60439-1 and 2 in the
form of an aluminium enclosed sandwich system. The LX sand-
wich system consists of busbars, insulation, the aluminium en-
closure and the fastening and connection elements.
LX trunking unit with joint block
■Application
Purpose and types of busbar trunking system
Various busbar trunking system components are responsible for
transporting power between transformers and low-voltage
power distribution systems. They are used between the trans-
former and main distribution board and then on to the subdistri-
bution level.
Trunking units without tap-off points, available in standard
lengths, are used for transporting power. In addition to the stan-
dard lengths, customers can select lengths from several ranges
to meet their particular building requirements.
Power distribution
The main application of busbar trunking systems is power distri-
bution. The advantage of such systems over cable installations
is that the locations of power tap-off points are not permanent,
but can be moved to any position within the entire system. To tap
power at any given point simply requires positioning a tap-off
unit at that location on the busbar.
The result is a flexible distribution system for decentralized
power supply to a particular line or area. Tap-off points can be
mounted on one or both sides of straight trunking units.
The LX busbar trunking system provides tap-off units from 80 A
to 1250 A for power tap-offs and for connecting consumers, pro-
viding the power supply for consumers in the range between
10 kW and over 400 kW. Tap-off units can be fitted with either
fuse switches or circuit-breakers.
Tap-off units for flexible power tapping
With all busbar trunking systems, pluggable tap-off units have a
high safty standard, the following requirements will be fulfilled by
all tap-off units:
• Early-make PE contact for mounting and late-break contact for
removing
• No live part can be accessed (degree of protection IP2X) dur-
ing mounting, unmounting or connection.
• Mounting should only be possible in the correct phase se-
quence.
The plug-in LX tap-off units up to 630 A meet these require-
ments.
The LX tap-off units from 800 A to 1250 A are fitted permanently
to the connection points of the trunking units and cannot be fit-
ted/removed while the system is live. Installation is only permis-
sible when the system is isolated.
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22. Siemens LV 72 · 2005 2/5
System Overview
System selection criteria
2
■Application
Building applications
LXA/LXC and LDA/LDC systems are available for distributing
large power requirements in buildings. For this type of applica-
tion busbar trunking systems frequently have to meet the follow-
ing requirements:
• Flexible power distribution in high-rise buildings
• Safe power supply for electronic consumers
To meet these requirements the LXA/LXC systems have very
favourable features in terms of design, high load capacity of the
neutral conductor as well as an additional isolated PE conductor.
Nevertheless, there are applications for which the use of the
LDA/LDC system is recommended. LD systems are ideally used
in applications with primarily horizontal busbar runs and re-
quired protection to IP34.
Industrial applications
When used in industrial applications, busbar trunking systems
have to meet a high level of requirements in terms of short-circuit
ratings. In power supply systems for manufacturing plants with
a high power requirement, such as with welding robots in weld-
ing lines, very high short-circuit currents can occur that require
the use of very robust consumer tap-offs. The LDA/LDC systems
are ideal busbar trunking systems for typical industrial applica-
tions. LXA/LXC systems may, however, also be useful in particu-
lar industrial applications such as in operating areas exposed to
fire hazards. In this kind of application protection to IP5x is re-
quired, where there is a risk of fire due to inflammable dust.
Sector Selection criteria LX LD
Building applications
Banks,
insurance companies
Power distribution in multi-storey buildings requiring primarily
vertical busbar runs, fire load
k –
Internet providers, IT centres, broadcasting
buildings
Electronic consumers subject to harmonics overload the neutral conductor
Interference potentials in the enclosure impair functioning of the consumer
k –
Shopping centres, furniture stores, trade
fairs, airports, hospitals, clinics, offices
High density of consumer tap-offs in a small space
Power distribution requires vertical busbar runs
k –
Electromagnetic field emissions of power transfer unit impair operation
of consumers in the vicinity
Power distribution in multi-storey buildings requiring primarily vertical busbar runs
and IP34 protection is sufficient
– k
Industrial applications
Automotive, metalworking, machine build-
ing, computers, microchips,
telecommunications, chemical,
pharmaceutical, food processing industries
Pluggable consumer tap-offs up to and including 1250 A
High short-circuit rating of consumer tap-offs Icc = 100 kA/Icf = 120 kA
– k
Electronic consumers subject to harmonics overload the neutral conductor
Interference potentials in the enclosure impair functioning of the consumer
Pluggable consumer tap-offs up to 630 A are sufficient
IP54 protection required
k –
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23. Siemens LV 72 · 20052/6
System Overview
System selection criteria
2
Conductor configurations
IEC 364 stipulates that electrical equipment must be selected
according to the type of system at hand in order to determine the
protective measures required. For the LX system this selection is
based on the appropriate conductor configuration.
N and PE conductor cross-sections/Clean Earth
Neutral conductor cross-section
The rise in new electronic consumers that are sensitive to inter-
ference, particularly near the power supply in the building, is
presenting busbar trunking systems with new challenges. Inter-
ference from electromagnetic fields and harmonics in the mains
supply impair the correct functioning of computers, servers and
many other state-of-the-art electronic devices. Particularly, the
large number of AC consumers in a mains supply place a high
load on the neutral conductor on account of the resulting har-
monics. Double neutral conductor cross-sections (200 %) re-
duce the susceptibility of the system in networks subject to har-
monics.
PE conductor cross-section
A large PE conductor cross-section also provides optimum
safety for the power supply since the reduced loop impedance
ensures rapid interruption of short-circuit currents. This conse-
quently reduces the risk of possible downtimes thanks to the
rapid disconnection of upstream protective devices.
Clean Earth
Insulated PE conductors offer optimum reliability and safety in
the power supply of electronic consumers in buildings on ac-
count of their complete insulation from the busbar enclosure. In
the event of a short-circuit between the phase and the consumer
enclosure this PE conductor (Clean Earth) is not affected by this
fault and is therefore potential-free during a short-circuit to an ex-
posed conductive part. Even leakage currents in the enclosure
due to magnetic fields do not affect the Clean Earth. The Clean
Earth is therefore ideal as the PE connection for susceptible
electronic loads.
System type Conductor configuration
TN-C LX...41
TN-C-S 1)
TN-S LX...51
LX...52
LX...53
LX...54
LX...61
LX...62
TT LX...51
LX...52
LX...53
LX...54
IT LX...30
1) An appropriate conductor configuration is not available as an LX system.
However, the PEN conductor can be divided into an N and PE conductor
in the tap-off unit when using an LX..41 4-conductor system.
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24. Siemens LV 72 · 2005 2/7
System Overview
System selection criteria
2
Cross-sections for PEN, N, PE conductors compared to the
conductor cross-section
The following tables compare the conductor cross-sections
L1, L2, L3, PEN, N, PE and Clean Earth of different conductor
configurations. The appropriate values in mm2 are contained in
the Technical Data.
Enclosure cross-section compared to conductor
cross-section (Cu equivalent)
Example:
What are the cross-sections of systems for:
a) LXA0461
L1, L2, L3, N, Clean Earth: 100 %
PE (enclosure): 173 % in Cu equivalent
b) LXC0554
L1, L2, L3: 100 %
N: 200 %
PE (enclosure + busbar): 219 % in Cu equivalent
System Cross-sections
L1, L2, L3 PEN N PE Clean Earth
LX..30 100 % – – Enclosure –
LX..41 100 % 100 % + Enclosure – – –
LX..51 100 % – 100 % Enclosure –
LX..52 100 % – 200 % Enclosure –
LXC.531) 100 % – 100 % 100 % + Enclosure –
LXC.541) 100 % – 200 % 100 % + Enclosure –
LX..61 100 % – 100 % Enclosure 100 %
LX..62 100 % – 200 % Enclosure 100 %
1) Each conductor configuration contains an additional busbar as PE conductor. The PE conductor is electrically connected to the enclosure.
System Enclosure cross-section
LXA(C)01.. 324 %
LXA(C)02.. 245 %
LXC03.. 230 %
LX(C)A04.. 173 %
LXA(C)05.. 119 %
LXA(C)06.. 113 %
LXA(C)07.. 84 %
LXA(C)08.. 119 %
LXA(C)09.. 113 %
LXA10.. 84 %
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25. Siemens LV 72 · 20052/8
System Overview
System selection criteria
2
■Technical specifications
LXA/LXC LDA/LDC
Rated operational voltage Ue VAC 690 1000
Standard degree of protection IP54 IP341)
Rated current Ie A 800 – 6300 1100 – 5000
Permissible load (Ie) depending on
• Mounting position
- Horizontal edgewise % 100 100
- Horizontal, flat % 100 59 – 68
- Vertical % 100 76 – 88
• IP54 degree of protection % 100 64 – 82
Rated short-time withstand current Icw (1 s) kA 25 – 150 55 – 116
Conductor configurations
L1, L2, L3, PE = Enclosure k –
L1, L2, L3, m PEN – k
L1, L2, L3, PEN k k
L1, L2, L3, N, PE = Enclosure k –
L1, L2, L3, m N, PE = Enclosure – k
L1, L2, L3, N, PE k k
L1, L2, L3, 2 N, PE = Enclosure k –
L1, L2, L3, 2 N, PE k –
L1, L2, L3, N, (PE)2), PE = Enclosure k –
L1, L2, L3, 2 N, (PE)2), PE = Enclosure k –
Dimensions width x height
Al systems/1000 A and Cu systems/1250 A mm 145 x 137 180 x 180
Al systems/1250 A and Cu systems/1600 A mm 145 x 162 180 x 180
Al systems/1600 A and Cu systems/2000 A mm 145 x 207 180 x 180
Al systems/2500 A and Cu systems/3200 A mm 145 x 287 240 x 180
Al systems/3200 A and Cu systems/4000 A mm 145 x 439 240 x 180
Al systems/4000 A and Cu systems/5000 A mm 145 x 599 240 x 180
Fire load
Tap-off unit without tap-off point kWh/m 1,83 – 16,32 4,16 – 8,83
Per tap-off point kWh/m 2,9 7,8 – 10,8
Voltage drop3)
Al systems/1250 A mV/A/m 0,127 0,116
Al systems/2500 A mV/A/m 0,051 0,068
Al systems/4000 A mV/A/m 0,03 0,043
Cu systems/2000 A mV/A/m 0,064 0,089
Cu systems/5000 A mV/A/m 0,02 0,03
Magnetic fields4)
Al systems/1600 A µT 10,84 10,60
Al systems/2500 A µT 20,54 9,00
Al systems/4000 A µT 30,62 13,00
Cu systems/2000 A µT 11,66 9,70
Cu systems/5000 A µT 37,22 14,40
Max. fixing intervals
Al systems m 2 – 3 5 – 6
Cu systems m 2 – 3 2 – 3
Tap-off units can be changed when system is live A 80 – 630 80 – 1250
Maximum number of tap-offs with pluggable tap-off units
over 3 m length when using tap-off units
From 80 to 125 A 6 3
From 160 to 630 A 4 3
From 800 to 1250 A 0 2
Tap-off units with fuses A 100 – 630 80 – 630
Rated conditional short-circuit current Icf kA 100 (80) 120
IEC standard k k
BS standard k –
NF standard k –
Tap-off units with circuit-breaker A 80 – 1250 80 – 1250
Rated conditional short-circuit current Icc
• For size 1 up to 125 A kA 65 100
• For size 2, 3, 4 up to 630 A kA 65 100
• For size 5 up to 1250 A kA 85 (100) 100
Manual operation k k
Remote operation – k
1) Taking current reduction into account also available with IP54 degree of protection
2) (PE) = Additional insulated PE conductor (Clean Earth)
3) Voltage drop in millivolts per 1 m per ampere, 3-phase 50 Hz, p. f. = 0.9, with a fully symmetrical load,
concentrated load tap-off and supply from one end
4) Magnetic field values given in microtesla with a fully symmetrical load at a distance of 0.5 m from the busbar system
(the measuring points are in the axis from direction 3 and direction 7, see Catalog LV 72.T 2004 „Further Information“)
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26. Siemens LV 72 · 2005 2/9
System Overview
System selection criteria
2
Rated currents and short-circuit currents of standard transformers
Rated voltage UN 400/230 V 690/400 V
Relative short-circuit voltage uk 4 %1) 6 %2) 4 %1) 6 %2)
Rated power
kVA
Rated current
A
Short-circuit current3)
Ik
A
Rated current
A
Short-circuit current3)
Ik
A
50 72 1805 – 42 1042 –
100 144 3610 2406 84 2084 1392
160 230 5776 3850 133 3325 2230
200 288 7220 4812 168 4168 2784
250 360 9025 6015 210 5220 3560
315 455 11375 7583 263 6650 4380
400 578 14450 9630 336 8336 5568
500 722 18050 12030 420 10440 7120
630 909 22750 15166 526 13300 8760
800 1156 28900 19260 672 16672 11136
1000 1444 36100 24060 840 20840 13920
1250 1805 45125 30080 1050 26060 17480
1600 2312 57800 38530 1330 33300 22300
2000 2888 72200 48120 1680 41680 27840
2500 3612 90300 60200 2094 52350 34900
3150 4546 113650 75780 2636 65893 43933
1) uk = 4 %, standardized to DIN 42500 for SNT = 50 – 630 kVA
2) uk = 6 %, standardized to DIN 42500 for SNT = 100 – 1600 kVA
3) Ik = Initial symmetrical short-circuit current of transformer when connected to a system with unlimited short-circuit capacity
Approximation formula
Rated current of transformer Short-circuit current of transformer
IN [A] = k x SNT [kVA] Ik = IN/uk x 100 400 V: k = 1.45
690 V: k = 0.84
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27. Siemens LV 72 · 20052/10
System Overview
System selection criteria
2
LXA/LXC selection depending on transformer rated values
Connecting a transformer to a Siemens distribution board
Transformer rated values LX-System
Rated current Rel. short-
circuit
voltage
Uninter-
rupted short-
circuit current
Peak short-
circuit current
Type Rated current Rated short-time
withstand current
Rated impulse
withstand current
I uk Ik Ipk Ie Icw Ipk
A % kAeff kA A kAeff kA
910 6 15.15 38.58 LXA02
LXC01
1000
1000
35
38
70
80
1155 6 19.25 49.00 LXA04
LXC02
1250
1250
50
50
110
110
1444 6 24.06 61.24 LXA05
LXC04
1600
1600
60
60
132
132
1805 6 30.07 76.57 LXA06
LXC05
2000
2000
75
75
158
165
2310 6 38.50 98.00 LXA07
LXC06
2500
2500
86
86
194
189
2887 6 48.11 122.50 LXA08
LXC07
3200
3200
100
100
220
220
3609 6 60.11 153.10 LXC09
LXC08
4000
4000
140
150
220
255
4546 6 75.78 192.90 LXC09 5000 150 255
7
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28. Siemens LV 72 · 2005
System components
3/1 Overview
Technical specifications
3/6 - Trunking units
3/21 - Tap-off units
3/22 - Weights
Selection and ordering data
3/25 - Straight trunking units
3/28 - Angle and branch units
3/33 - Connection units
3/46 - Tap-off units
3/50 Accessories
- for mounting and fixing
Dimensional drawings
3/53 - Trunking units
3/58 - Universal-connection units
3/65 - Cable feeder units
3/66 - Connection to distribution boards
3/76 - Tap-off units
3/79 - Accessories
LXA/LXC Busbar Trunking
System
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29. Siemens LV 72 · 20053/2
LXA/LXC Busbar Trunking System
System components
3
■Overview
1 Straight trunking units
2 Tap-off units
3 Connection units
4 Distribution board connections
5 Angle and branch units
6 Accessories
6
2
1
5
4
3
6
2
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30. Siemens LV 72 · 2005 3/3
LXA/LXC Busbar Trunking System
System components
3
LX busbar trunking system
1 Straight trunking units
• With or without fire barrier, EN 60439-2
Fire resistance class S 120 DIN 4102 Part 9, ISO 834
• Degree of protection IP54, (IP55 on request)
• Conductor configuration
- Standard lengths 3 m/2 m/1 m
- Optional lengths from 0.35 – 2.99 m
- For horizontal and vertical installation
• Straight trunking units with tap-off points
- Tap-off points on one side
- Tap-off points on both sides
- Protection against direct contact IP20
during assembly and dismantling of tap-off units
- Anti-rotation feature: protection against
incorrect fitting (key-lock principle)
2 Tap-off units
• Can be changed when system is live
• Fitted with circuit-breaker or fuse switch disconnector
• Early-make PE(N) connection contact during fitting
• Safety resulting from a specified fitting/removal sequence
• Sheet steel enclosure degree of protection IP54
• Protection against direct contact IP20 during assembly and
dismantling
• Permanently installed tap-off units
• Fitted with circuit-breaker
• Safety resulting from a specified fitting/removal sequence
• Sheet steel enclosure degree of protection IP54
• Protection against direct contact IP20 during assembly and
dismantling
• Tap-off via joint block
3 Universal connection units
• Transformer feeder units, enclosed
- For rated currents of 800 A – 6300 A
- Connection lugs for all normal spacings
- Phase sequence to specification
• Distribution board connections
- For rated currents of 800 A – 6300 A
• Cable feeders
- For rated currents of 800 A – 3200 A
- Cable entry via cable grommets and cable anchoring rail
4 Distribution board connections
• For connection to the SIVACON system or to non-Siemens
distribution boards
- Above
- Below
5 Angle and branch units
• Adaptation which can be engineered flexibly to match
structural characteristics, with
- Elbow, offset elbow
- Knee, offset knee
- Z units
- T units
6 Accessories
• End caps
• Joint block
• Protective sleeves
• Fixing bracket
• Connection tool
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31. Siemens LV 72 · 20053/4
LXA/LXC Busbar Trunking System
System components
3
Reference keys LXA/LXC
Straight trunking units, angle and branch units,
fixing brackets for vertical installation
Non-Siemens connection unit, expansion unit, clamp terminal, end flange,
protectice sleeve, fire barrier for installation on site
1) PE conductor = Enclosure
2) Separate PE conductor by means of an insulated busbar (Clean Earth)
3) Double cross-section of neutral conductor (200%) by means of additional
busbar
4) PE(PEN) conductor = busbar and enclosure
5) Only available as copper system (LXC)
6) These types have copper conductors
7) Technical clarification required before offer is submitted
Rated current Ie [A] Code No. Conductor configuration:
Al Cu Code No. 30 L1 + L2 + L3 + PE1)
800 1000 01 41 L1 + L2 + L3 + PEN/PEN4)
1000 1250 02 51 L1 + L2 + L3 + N + PE1)
– 1400 03 52 L1 + L2 + L3 + N + N3) + PE1)
1250 1600 04 535)
L1 + L2 + L3 + N + PE/PE4)
1600 2000 05 545)
L1 + L2 + L3 + N + N3)
+ PE/PE4)
2000 2500 06 61 L1 + L2 + L3 + N + (PE)2)
+ PE1)
2500 3200 07 62 L1 + L2 + L3 + N + N3) + (PE)2) + PE1)
3200 4000 08
4000 5000 09 Fire barrier
4500 63007) 10 Positioning X*
(see Engineering)
Conductor material
Al A
Cu C
Rated current le [A] Code No. Conductor configuration:
Al Code No. Cu Code No. 30 L1 + L2 + L3 + PE1)
800 C 01 1000 01 41 L1 + L2 + L3 + PEN/PEN4)
1000 C 02 1250 02 51 L1 + L2 + L3 + N + PE1)
– – 1400 03 52 L1 + L2 + L3 + N + N3)
+ PE1)
1250 C 04 1600 04 53 L1 + L2 + L3 + N + PE/PE4)
1600 A 056) 2000 05 54 L1 + L2 + L3 + N + N3) + PE/PE4)
2000 C 06 2500 06 61 L1 + L2 + L3 + N + (PE)2)
+ PE1)
2500 C 07 3200 07 62 L1 + L2 + L3 + N + N3)
+ (PE)2)
+ PE1)
3200 C 08 4000 08
4000 C 09 5000 09
4500 A 106)
63007)
10
·Type Type suffix
LX -.... +LX -S120-X... .. ..
ᕡ
. .. ..
»Type
LX -..... ..
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32. Siemens LV 72 · 2005 3/5
LXA/LXC Busbar Trunking System
System components
3
Important notes
Please take into account when selecting and ordering:
Dimensions
On the selection and ordering pages, lengths are stated in
meters (m). Optional dimensions can be selected in a 0.01 m
grid.
Type
If a type designation contains * characters, it is not complete and
must be supplemented according to specifications in the list.
Typen suffix
The type suffixes flange plate, phase sequence etc. always have
to be stated together with the type.
Reference keys
On page 3/4 the LXA/LXC reference keys are stated. When se-
lecting the types, the reference keys have to be transferred to
the selection pages.
In special cases, the reference key is stated on the selection
page, with e.g. tap-off units, cable infeeds and accessories.
Legend
Dimen-
sion
Designation
AD Distance centre tap-off unit to centre clamp terminal
D Length expansion compensation unit
L Standard length
W Optional length
X Length of X limb
Y Length of Y limb
Z Length of Z limb
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33. Siemens LV 72 · 20053/6
LXA/LXC Busbar Trunking System
System components
3
■Technical specifications
LX..... Busbar trunking units
Standards IEC/EN 60439 Parts 1 and 2
resistance to climate Damp heat, constant, as per IEC 60068-2-78
Damp heat, cyclic, as per IEC 60068-2-30
Ambient temperature Min./Max./mean level over 24 hours °C –5/+40/+35
Degree of protection IP54,
IP55 with additional components exclusively with power transmission
Tightening torque for joint block (for repeat usage) Nm 120 ±10
Busbar surface treatment Insulated over the entire length, aluminium has additional nickel and tin
plating, copper is tin plated
Material Paint finished aluminium housing
Colour RAL 7035 (light grey)
Dimensions see „Dimensions“
Weights see „Weights“
Rated operational voltage Ui
acc. to DIN VDE 0110, IEC 909 V~
V -
690
800
Overvoltage category/pollution degree III/3 to EN 60947
Rated operational voltage Ue V~ 690
Rated frequency Hz 50
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34. Siemens LV 72 · 2005 3/7
LXA/LXC Busbar Trunking System
System components
3
LXA..30 busbar trunking units
Note:
For further information, see chapter „Planning and Engineering – Basic technical information“.
System-dependent data LXA 0130 0230 0430 0530 0630 0730 0830 0930 1030
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.009 0.005 0.012
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.006
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.029 0.025 0.024 0.018 0.015
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.174 0.154 0.123 0.079 0.072 0.069 0.055 0.040 0.040
Reactance X'F mΩ/m 0.084 0.085 0.069 0.056 0.040 0.044 0.040 0.025 0.028
Impedance Z'F mΩ/m 0.193 0.175 0.141 0.096 0.082 0.081 0.068 0.047 0.048
Zero impedance
for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.297 0.274 0.251 0.228 0.204 0.181 0.158 0.135 0.111
Reactance X'0 mΩ/m 0.216 0.200 0.184 0.168 0.152 0.136 0.119 0.103 0.088
Impedance Z'0 mΩ/m 0.367 0.339 0.311 0.283 0.254 0.226 0.197 0.169 0.141
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
• of the 5th conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 60 70
Rated impulse withstand current Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 3 3 3 3 3 3 6 6 6
Conductor cross-section L1, L2, L3 mm2 292 386 586 946 1192 1586 1892 2384 3172
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1135 1348 1348 2270 2694 2696
Combustive energy
Trunking unit
• without tap-off point kWh/m 1.83 1.91 2.37 3.32 5.01 5.09 6.84 10.22 10.4
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 9.6 10.6 13.3 17.8 21.8 26.3 35.5 43.4 52.1
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35. Siemens LV 72 · 20053/8
LXA/LXC Busbar Trunking System
System components
3
LXA..41 busbar trunking units
System-dependent data LXA 0141 0241 0441 0541 0641 0741 0841 0941 1041
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.012
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.035 0.030 0.024 0.018 0.015
• for 4-pole systems
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.158 0.126 0.093 0.063 0.048 0.043 0.036 0.025 0.022
Reactance X'F mΩ/m 0.074 0.083 0.064 0.050 0.032 0.035 0.032 0.018 0.018
Impedance Z'F mΩ/m 0.175 0.150 0.113 0.080 0.058 0.055 0.048 0.030 0.028
Zero impedance
for 4-pole systems
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.227 0.190 0.145 0.102 0.081 0.073 0.063 0.041 0.036
Reactance X'0 mΩ/m 0.132 0.133 0.101 0.080 0.047 0.057 0.050 0.026 0.026
Impedance Z'0 mΩ/m 0.263 0.232 0.177 0.129 0.094 0.093 0.080 0.049 0.044
Short-circuit rating
Rated short-time withstand current rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
Rated impulse withstand current Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 4 4 4 4 4 4 8 8 8
Conductor cross-section L1, L2, L3 mm2 292 386 586 946 1192 1586 1892 2384 3172
Equivalent copper cross-section PEN mm2
1109 1161 1341 1657 2006 2223 3314 4011 4446
Combustive energy
Trunking unit
• without tap-off point kWh/m 1.95 2.04 2.53 3.54 5.33 5.42 7.28 10.88 11.07
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 10.6 12 15.2 20.8 25.6 31.3 42 51.3 62.6
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36. Siemens LV 72 · 2005 3/9
LXA/LXC Busbar Trunking System
System components
3
LXA..51 busbar trunking units
System-dependent data LXA 0151 0251 0451 0551 0651 0751 0851 0951 1051
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.009 0.005 0.012
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.006
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.035 0.030 0.024 0.018 0.015
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.174 0.154 0.123 0.079 0.072 0.069 0.055 0.040 0.040
Reactance X'F mΩ/m 0.084 0.085 0.069 0.056 0.040 0.044 0.040 0.025 0.028
Impedance Z'F mΩ/m 0.193 0.176 0.141 0.097 0.082 0.082 0.068 0.048 0.049
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.249 0.192 0.133 0.086 0.064 0.055 0.047 0.032 0.028
Reactance X'F mΩ/m 0.113 0.122 0.095 0.072 0.046 0.047 0.043 0.023 0.023
Impedance Z'F mΩ/m 0.273 0.227 0.163 0.112 0.079 0.072 0.064 0.039 0.036
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.281 0.274 0.240 0.159 0.153 0.154 0.121 0.092 0.095
Reactance X'0 mΩ/m 0.198 0.200 0.161 0.130 0.094 0.101 0.097 0.063 0.069
Impedance Z'0 mΩ/m 0.344 0.339 0.289 0.205 0.179 0.184 0.155 0.111 0.117
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.484 0.377 0.260 0.167 0.128 0.106 0.095 0.062 0.052
Reactance X'0 mΩ/m 0.175 0.177 0.134 0.095 0.061 0.065 0.060 0.030 0.030
Impedance Z'0 mΩ/m 0.515 0.417 0.293 0.192 0.142 0.125 0.112 0.069 0.060
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
• for neutral conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 70 70
• of the 5th conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 60 70
Rated impulse
withstand current
Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 4 4 4 4 4 4 8 8 8
Conductor cross-section L1, L2, L3 mm2
292 386 586 946 1192 1586 1892 2384 3172
N mm2
292 386 586 946 1192 1586 1892 2384 3172
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1135 1348 1348 2270 2694 2696
Combustive energy
Trunking unit
• without tap-off point kWh/m 1.95 2.04 2.53 3.54 5.33 5.42 7.28 10.88 11.07
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 10.6 12 15.2 20.8 25.6 31.3 42 51.3 62.6
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37. Siemens LV 72 · 20053/10
LXA/LXC Busbar Trunking System
System components
3
LXA..52 busbar trunking units
System-dependent data LXA 0152 0252 0452 0552 0652 0752 0852 0952 1052
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.009 0.005 0.012
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.006
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.029 0.025 0.024 0.018 0.015
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.174 0.154 0.123 0.079 0.072 0.069 0.055 0.040 0.040
Reactance X'F mΩ/m 0.084 0.085 0.069 0.056 0.040 0.044 0.040 0.025 0.028
Impedance Z'F mΩ/m 0.193 0.175 0.141 0.096 0.082 0.081 0.068 0.047 0.048
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.187 0.166 0.146 0.125 0.104 0.083 0.062 0.042 0.021
Reactance X'F mΩ/m 0.133 0.122 0.110 0.099 0.088 0.077 0.065 0.054 0.043
Impedance Z'F mΩ/m 0.229 0.206 0.182 0.159 0.136 0.113 0.089 0.068 0.047
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.297 0.274 0.251 0.228 0.204 0.181 0.158 0.135 0.111
Reactance X'0 mΩ/m 0.216 0.200 0.184 0.168 0.152 0.136 0.119 0.103 0.088
Impedance Z'0 mΩ/m 0.367 0.339 0.311 0.283 0.254 0.226 0.197 0.169 0.141
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.100 0.092 0.083 0.074 0.066 0.058 0.049 0.041 0.032
Reactance X'0 mΩ/m 0.195 0.177 0.159 0.141 0.123 0.105 0.087 0.068 0.050
Impedance Z'0 mΩ/m 0.219 0.199 0.179 0.159 0.139 0.119 0.099 0.079 0.059
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
• for neutral conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 70 70
• of the 5th conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 60 70
Rated impulse withstand current Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 5 5 5 5 5 5 10 10 10
Conductor cross-section L1, L2, L3 mm2
292 386 586 946 1192 1586 1892 2384 3172
N mm2
584 772 1172 1892 2384 3172 3784 4768 6344
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1135 1348 1348 2270 2694 2696
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.43 2.55 3.16 4.42 6.66 6.77 9.1 13.6 13.83
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 11.6 13.3 17 23.8 29.3 36.3 48.5 59.2 73.2
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38. Siemens LV 72 · 2005 3/11
LXA/LXC Busbar Trunking System
System components
3
LXA..61 busbar trunking units
1) Insulated PE conductor
System-dependent data LXA 0161 0261 0461 0561 0661 0761 0861 0961 1061
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.009 0.005 0.012
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.016
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.029 0.025 0.024 0.018 0.015
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.174 0.154 0.123 0.079 0.072 0.069 0.055 0.040 0.040
Reactance X'F mΩ/m 0.084 0.085 0.069 0.056 0.040 0.044 0.040 0.025 0.028
Impedance Z'F mΩ/m 0.193 0.175 0.141 0.096 0.082 0.081 0.068 0.047 0.048
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.249 0.221 0.194 0.166 0.138 0.111 0.083 0.056 0.028
Reactance X'F mΩ/m 0.133 0.122 0.110 0.099 0.088 0.077 0.065 0.054 0.043
Impedance Z'F mΩ/m 0.282 0.252 0.223 0.193 0.163 0.135 0.105 0.077 0.051
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.297 0.274 0.251 0.228 0.204 0.181 0.158 0.135 0.111
Reactance X'0 mΩ/m 0.216 0.200 0.184 0.168 0.152 0.136 0.119 0.103 0.088
Impedance Z'0 mΩ/m 0.367 0.339 0.311 0.283 0.254 0.226 0.197 0.169 0.141
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.484 0.430 0.376 0.322 0.268 0.214 0.160 0.106 0.052
Reactance X'0 mΩ/m 0.195 0.177 0.159 0.141 0.123 0.105 0.087 0.068 0.050
Impedance Z'0 mΩ/m 0.521 0.465 0.408 0.351 0.294 0.238 0.182 0.125 0.072
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
• for neutral conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 70 70
• of the 5th conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 60 70
Rated impulse withstand current Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 5 5 5 5 5 5 10 10 10
Conductor cross-section L1, L2, L3, (PE)1)
mm2
292 386 586 946 1192 1586 1892 2384 3172
N mm2
292 386 586 946 1192 1586 1892 2384 3172
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1135 1348 1348 2270 2694 2696
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.43 2.55 3.16 4.42 6.66 6.77 9.1 13.6 13.83
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 11.6 13.3 17 23.8 29.3 36.3 48.5 59.2 73.2
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39. Siemens LV 72 · 20053/12
LXA/LXC Busbar Trunking System
System components
3
LXA..62 busbar trunking units
1) Insulated PE conductor
System-dependent data LXA 0162 0262 0462 0562 0662 0762 0862 0962 1062
Rated current IP54 Ie A 800 1000 1250 1600 2000 2500 3200 4000 4500
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.117 0.084 0.056 0.036 0.027 0.023 0.018 0.014 0.011
Reactance X'20 mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.009 0.005 0.012
Impedance Z'20 mΩ/m 0.120 0.090 0.061 0.040 0.029 0.025 0.020 0.015 0.016
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.146 0.106 0.070 0.043 0.034 0.028 0.022 0.017 0.014
Reactance X' mΩ/m 0.028 0.031 0.024 0.017 0.009 0.011 0.008 0.005 0.006
Impedance Z' mΩ/m 0.149 0.110 0.074 0.046 0.029 0.025 0.024 0.018 0.015
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.174 0.154 0.123 0.079 0.072 0.069 0.055 0.040 0.040
Reactance X'F mΩ/m 0.084 0.085 0.069 0.056 0.040 0.044 0.040 0.025 0.028
Impedance Z'F mΩ/m 0.193 0.175 0.141 0.096 0.082 0.081 0.068 0.047 0.048
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.187 0.166 0.146 0.125 0.104 0.083 0.062 0.042 0.021
Reactance X'F mΩ/m 0.133 0.122 0.110 0.099 0.088 0.077 0.065 0.054 0.043
Impedance Z'F mΩ/m 0.229 0.206 0.182 0.159 0.136 0.113 0.089 0.068 0.047
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.297 0.274 0.251 0.228 0.204 0.181 0.158 0.135 0.111
Reactance X'0 mΩ/m 0.216 0.200 0.184 0.168 0.152 0.136 0.119 0.103 0.088
Impedance Z'0 mΩ/m 0.367 0.339 0.311 0.283 0.254 0.226 0.197 0.169 0.141
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.100 0.092 0.083 0.074 0.066 0.058 0.049 0.041 0.032
Reactance X'0 mΩ/m 0.195 0.177 0.159 0.141 0.123 0.105 0.087 0.068 0.050
Impedance Z'0 mΩ/m 0.219 0.199 0.179 0.159 0.139 0.119 0.099 0.079 0.059
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 25 35 50 60 75 86 100 140 150
• for neutral conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 70 70
• of the 5th conductor rms value t = 1 s ICW kA 15 21 30 36 45 51.6 60 60 70
Rated impulse withstand current Peak value IPK kA 53 70 110 132 158 194 220 255 255
Conductor material Aluminium
Number of busbars 6 6 6 6 6 6 12 12 12
Conductor cross-section L1, L2, L3, (PE)1)
mm2
292 386 586 946 1192 1586 1892 2384 3172
N mm2
584 772 1172 1892 2384 3172 3784 4768 6344
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1135 1348 1348 2270 2694 2696
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.92 3.06 3.79 5.31 7.99 8.13 10.92 16.32 16.6
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 3 3 3 3 3 3
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2
Weights kg/m 12.6 14.7 18.9 26.8 33.1 41.3 55 67.2 83.7
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40. Siemens LV 72 · 2005 3/13
LXA/LXC Busbar Trunking System
System components
3
LXC..30 busbar trunking units
System-dependent data LXC 0130 0230 0330 0430 0530 0630 0730 0830 0930 1030
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.137 0.125 0.113 0.101 0.089 0.077 0.065 0.053 0.041 –
Reactance X'F mΩ/m 0.092 0.085 0.078 0.070 0.063 0.056 0.049 0.041 0.034 –
Impedance Z'F mΩ/m 0.165 0.151 0.137 0.122 0.109 0.095 0.081 0.067 0.053 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.274 0.254 0.233 0.213 0.193 0.172 0.152 0.132 0.111 –
Reactance X'0 mΩ/m 0.207 0.191 0.175 0.160 0.144 0.128 0.113 0.097 0.082 –
Impedance Z'0 mΩ/m 0.343 0.317 0.291 0.266 0.240 0.214 0.189 0.163 0.138 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 3 3 3 3 3 3 3 6 6 –
Conductor cross-section L1, L2, L3 mm2
292 386 442 586 712 1192 1586 1892 2384 –
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1018 1135 1348 1348 2270 2696 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 1.83 1.91 2.27 2.37 3.27 5.01 5.09 6.84 10.22 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 15.0 17.8 19.9 24.2 28.6 44.0 55.8 70.7 87.8 –
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41. Siemens LV 72 · 20053/14
LXA/LXC Busbar Trunking System
System components
3
LXC..41 busbar trunking units
System-dependent data LXC 0141 0241 0341 0441 0541 0641 0741 0841 0941 1041
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.020 0.016 0.012 –
• for 4-pole systems
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.107 0.090 0.076 0.070 0.052 0.036 0.032 0.025 0.018 –
Reactance X'F mΩ/m 0.079 0.081 0.060 0.065 0.047 0.033 0.037 0.029 0.018 –
Impedance Z'F mΩ/m 0.133 0.121 0.097 0.095 0.070 0.049 0.049 0.038 0.026 –
Zero impedance
• for 4-pole systems
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.172 0.147 0.121 0.114 0.089 0.064 0.054 0.047 0.032 –
Reactance X'0 mΩ/m 0.121 0.127 0.092 0.095 0.067 0.046 0.049 0.043 0.026 –
Impedance Z'0 mΩ/m 0.210 0.194 0.152 0.148 0.111 0.079 0.073 0.064 0.042 –
Short-circuit rating
Rated short-time withstand current rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 4 4 4 4 4 4 4 8 8 –
Conductor cross-section L1, L2, L3 mm2
292 386 442 586 712 1192 1586 1892 2384 –
Equivalent copper cross-section PEN mm2
1240 1334 1460 1604 1847 2540 2934 4162 5080 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 1.95 2.04 2.42 2.53 3.48 5.33 5.42 7.28 10.88 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 17.9 21.5 24.1 29.7 35.3 55.2 70.6 88.9 110.5 –
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42. Siemens LV 72 · 2005 3/15
LXA/LXC Busbar Trunking System
System components
3
LXC..51 busbar trunking units
System-dependent data LXC 0151 0251 0351 0451 0551 0651 0751 0851 0951 1051
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.132 0.119 0.101 0.101 0.082 0.065 0.063 0.046 0.036 –
Reactance X'F mΩ/m 0.084 0.085 0.070 0.070 0.056 0.040 0.042 0.033 0.026 –
Impedance Z'F mΩ/m 0.156 0.146 0.123 0.123 0.099 0.076 0.075 0.056 0.044 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.149 0.127 0.104 0.090 0.065 0.042 0.039 0.030 0.021 –
Reactance X'F mΩ/m 0.109 0.118 0.084 0.091 0.062 0.041 0.050 0.036 0.022 –
Impedance Z'F mΩ/m 0.184 0.174 0.134 0.128 0.090 0.058 0.064 0.047 0.030 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.252 0.245 0.203 0.213 0.181 0.156 0.152 0.108 0.089 –
Reactance X'0 mΩ/m 0.192 0.191 0.161 0.157 0.132 0.096 0.096 0.079 0.067 –
Impedance Z'0 mΩ/m 0.317 0.310 0.259 0.264 0.224 0.183 0.180 0.134 0.111 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.293 0.244 0.204 0.173 0.129 0.082 0.074 0.061 0.043 –
Reactance X'0 mΩ/m 0.153 0.161 0.112 0.119 0.080 0.053 0.062 0.049 0.030 –
Impedance Z'0 mΩ/m 0.330 0.292 0.233 0.210 0.152 0.098 0.096 0.078 0.053 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 4 4 4 4 4 4 4 8 8 –
Conductor cross-section L1, L2, L3 mm2
292 386 442 586 712 1192 1586 1892 2384 –
N mm2
292 386 442 586 712 1192 1586 1892 2384 –
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1018 1135 1348 1348 2270 2696 –
Combustive energy
Trunking unit –
• without tap-off point kWh/m 1.95 2.04 2.42 2.53 3.48 5.33 5.42 7.28 10.88 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 17.9 21.5 24.1 29.7 35.3 55.2 70.6 88.9 110.5 –
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43. Siemens LV 72 · 20053/16
LXA/LXC Busbar Trunking System
System components
3
LXC..52 busbar trunking units
System-dependent data LXC 0152 0252 0352 0452 0552 0652 0752 0852 0952 1052
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.137 0.125 0.113 0.101 0.089 0.077 0.065 0.053 0.041 –
Reactance X'F mΩ/m 0.092 0.085 0.078 0.070 0.063 0.056 0.049 0.041 0.034 –
Impedance Z'F mΩ/m 0.165 0.151 0.137 0.122 0.109 0.095 0.081 0.067 0.053 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.112 0.100 0.088 0.076 0.064 0.052 0.040 0.028 0.016 –
Reactance X'F mΩ/m 0.129 0.118 0.107 0.096 0.085 0.074 0.063 0.052 0.042 –
Impedance Z'F mΩ/m 0.170 0.154 0.138 0.122 0.106 0.090 0.074 0.059 0.044 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.274 0.254 0.233 0.213 0.193 0.172 0.152 0.132 0.111 –
Reactance X'0 mΩ/m 0.207 0.191 0.175 0.160 0.144 0.128 0.113 0.097 0.082 –
Impedance Z'0 mΩ/m 0.343 0.317 0.291 0.266 0.240 0.214 0.189 0.163 0.138 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.220 0.197 0.173 0.149 0.126 0.103 0.079 0.056 0.032 –
Reactance X'0 mΩ/m 0.177 0.162 0.146 0.131 0.115 0.100 0.084 0.069 0.053 –
Impedance Z'0 mΩ/m 0.282 0.255 0.226 0.198 0.170 0.143 0.115 0.088 0.061 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 5 5 5 5 5 5 5 10 10 –
Conductor cross-section L1, L2, L3 mm2 292 386 442 586 712 1192 1586 1892 2384 –
N mm2 584 772 884 1172 1424 2384 3172 3784 4768 –
Equivalent copper cross-section PE = Enclosure mm2 948 948 1018 1018 1135 1348 1348 2270 2696 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.43 2.55 3.02 3.16 4.35 6.66 6.77 9.1 13.6 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 20.7 25.3 28.2 35.2 41.9 66.3 85.5 107.2 133.2 –
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44. Siemens LV 72 · 2005 3/17
LXA/LXC Busbar Trunking System
System components
3
LXC..53 busbar trunking units
System-dependent data LXC 0153 0253 0353 0453 0553 0653 0753 0853 0953 1053
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.116 0.104 0.091 0.079 0.067 0.055 0.043 0.031 0.020 –
Reactance X'F mΩ/m 0.088 0.081 0.073 0.066 0.058 0.050 0.043 0.035 0.027 –
Impedance Z'F mΩ/m 0.145 0.131 0.116 0.102 0.088 0.074 0.060 0.046 0.033 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.149 0.133 0.117 0.101 0.085 0.069 0.053 0.037 0.021 –
Reactance X'F mΩ/m 0.129 0.118 0.107 0.096 0.085 0.074 0.063 0.052 0.042 –
Impedance Z'F mΩ/m 0.197 0.177 0.158 0.139 0.120 0.101 0.082 0.063 0.046 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.203 0.183 0.162 0.142 0.120 0.100 0.079 0.059 0.038 –
Reactance X'0 mΩ/m 0.187 0.171 0.155 0.139 0.122 0.106 0.090 0.074 0.058 –
Impedance Z'0 mΩ/m 0.276 0.250 0.224 0.198 0.171 0.145 0.119 0.094 0.069 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.293 0.262 0.230 0.199 0.168 0.137 0.105 0.074 0.043 –
Reactance X'0 mΩ/m 0.177 0.162 0.146 0.131 0.115 0.100 0.084 0.069 0.053 –
Impedance Z'0 mΩ/m 0.342 0.308 0.272 0.238 0.203 0.169 0.134 0.101 0.068 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 5 5 5 5 5 5 5 10 10 –
Conductor cross-section L1, L2, L3 mm2
292 386 442 586 712 1192 1586 1892 2384 –
N mm2
292 386 442 586 712 1192 1586 1892 2384 –
Equivalent copper cross-section PE = Enclosure mm2
948 948 1018 1018 1135 1348 1348 2270 2696 –
+ busbar mm2 292 386 442 586 712 1192 1586 1892 2384 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.43 2.55 3.02 3.16 4.35 6.66 6.77 9.1 13.6 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 20.7 25.3 28.2 35.2 41.9 66.3 85.5 107.2 133.2 –
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45. Siemens LV 72 · 20053/18
LXA/LXC Busbar Trunking System
System components
3
LXC..54 busbar trunking units
System-dependent data LXC 0154 0254 0354 0454 0554 0654 0754 0854 0954 1054
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.116 0.104 0.091 0.079 0.067 0.055 0.043 0.031 0.020 –
Reactance X'F mΩ/m 0.088 0.081 0.073 0.066 0.058 0.050 0.043 0.035 0.027 –
Impedance Z'F mΩ/m 0.145 0.131 0.116 0.102 0.088 0.074 0.060 0.046 0.033 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.112 0.100 0.088 0.076 0.064 0.052 0.040 0.028 0.016 –
Reactance X'F mΩ/m 0.129 0.118 0.107 0.096 0.085 0.074 0.063 0.052 0.042 –
Impedance Z'F mΩ/m 0.170 0.154 0.138 0.122 0.106 0.090 0.074 0.059 0.044 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.203 0.183 0.162 0.142 0.120 0.100 0.079 0.059 0.038 –
Reactance X'0 mΩ/m 0.187 0.171 0.155 0.139 0.122 0.106 0.090 0.074 0.058 –
Impedance Z'0 mΩ/m 0.276 0.250 0.224 0.198 0.171 0.145 0.119 0.094 0.069 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.220 0.197 0.173 0.149 0.126 0.103 0.079 0.056 0.032 –
Reactance X'0 mΩ/m 0.177 0.162 0.146 0.131 0.115 0.100 0.084 0.069 0.053 –
Impedance Z'0 mΩ/m 0.282 0.255 0.226 0.198 0.170 0.143 0.115 0.088 0.061 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 6 6 6 6 6 6 6 12 12 –
Conductor cross-section L1, L2, L3 mm2
292 386 442 586 712 1192 1586 1892 2384 –
N mm2 584 772 884 1172 1424 2384 3172 3784 4768 –
Equivalent copper cross-section PE = Enclosure mm2 948 948 1018 1018 1135 1348 1348 2270 2696 –
+ busbar mm2
292 386 442 586 712 1192 1586 1872 2384 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.92 3.06 3.63 3.79 5.22 7.99 8.13 10.92 16.32 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 23.5 29 32.4 40.8 48.6 77.5 100.4 125.4 155.9 –
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46. Siemens LV 72 · 2005 3/19
LXA/LXC Busbar Trunking System
System components
3
LXC..61 busbar trunking units
1) Insulated PE conductor
System-dependent data LXC 0161 0261 0361 0461 0561 0661 0761 0861 0961 1061
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.137 0.125 0.113 0.101 0.089 0.077 0.065 0.053 0.041 –
Reactance X'F mΩ/m 0.092 0.085 0.078 0.070 0.063 0.056 0.049 0.041 0.034 –
Impedance Z'F mΩ/m 0.165 0.151 0.137 0.122 0.109 0.095 0.081 0.067 0.053 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.149 0.133 0.117 0.101 0.085 0.069 0.053 0.037 0.021 –
Reactance X'F mΩ/m 0.129 0.118 0.107 0.096 0.085 0.074 0.063 0.052 0.042 –
Impedance Z'F mΩ/m 0.197 0.177 0.158 0.139 0.120 0.101 0.082 0.063 0.046 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.274 0.254 0.233 0.213 0.193 0.172 0.152 0.132 0.111 –
Reactance X'0 mΩ/m 0.207 0.191 0.175 0.160 0.144 0.128 0.113 0.097 0.082 –
Impedance Z'0 mΩ/m 0.343 0.317 0.291 0.266 0.240 0.214 0.189 0.163 0.138 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.293 0.262 0.230 0.199 0.168 0.137 0.105 0.074 0.043 –
Reactance X'0 mΩ/m 0.177 0.162 0.146 0.131 0.115 0.100 0.084 0.069 0.053 –
Impedance Z'0 mΩ/m 0.342 0.308 0.272 0.238 0.203 0.169 0.134 0.101 0.068 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 5 5 5 5 5 5 5 10 10 –
Conductor cross-section L1, L2, L3, (PE)1)
mm2
292 386 442 586 712 1192 1586 1892 2384 –
N mm2 292 386 442 586 712 1192 1586 1892 2384 –
Equivalent copper cross-section PE = Enclosure mm2 948 948 1018 1018 1135 1348 1348 2270 2696 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.43 2.55 3.02 3.16 4.35 6.66 6.77 9.1 13.6 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 20.7 25.3 28.2 35.2 41.9 66.3 85.5 107.2 133.2 –
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47. Siemens LV 72 · 20053/20
LXA/LXC Busbar Trunking System
System components
3
LXC..62 busbar trunking units
1) Insulated PE conductor
System-dependent data LXC 0162 0262 0362 0462 0562 0662 0762 0862 0962 1062
Rated current IP54 Ie A 1000 1250 1400 1600 2000 2500 3200 4000 5000 –
Conductor impedance
• at 50 Hz and a
busbar temperature of +20 °C
Resistance R'20 mΩ/m 0.065 0.051 0.044 0.037 0.027 0.017 0.013 0.011 0.009 –
Reactance X'20 mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z'20 mΩ/m 0.071 0.059 0.048 0.045 0.030 0.019 0.017 0.014 0.010 –
• at 50 Hz and when the
busbars have attained
operational temperature
Resistance R' mΩ/m 0.083 0.065 0.055 0.045 0.035 0.021 0.016 0.014 0.011 –
Reactance X' mΩ/m 0.027 0.031 0.020 0.026 0.013 0.009 0.011 0.008 0.005 –
Impedance Z' mΩ/m 0.087 0.072 0.059 0.051 0.037 0.022 0.019 0.016 0.012 –
• for 5-pole systems (PE)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.137 0.125 0.113 0.101 0.089 0.077 0.065 0.053 0.041 –
Reactance X'F mΩ/m 0.092 0.085 0.078 0.070 0.063 0.056 0.049 0.041 0.034 –
Impedance Z'F mΩ/m 0.165 0.151 0.137 0.122 0.109 0.095 0.081 0.067 0.053 –
• for 5-pole systems (N)
in the event of a fault to
EN 60439-2 Appendix N
Resistance R'F mΩ/m 0.112 0.100 0.088 0.076 0.064 0.052 0.040 0.028 0.016 –
Reactance X'F mΩ/m 0.129 0.118 0.107 0.096 0.085 0.074 0.063 0.052 0.042 –
Impedance Z'F mΩ/m 0.170 0.154 0.138 0.122 0.106 0.090 0.074 0.059 0.044 –
Zero impedance
• for 5-pole systems (PE)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.274 0.254 0.233 0.213 0.193 0.172 0.152 0.132 0.111 –
Reactance X'0 mΩ/m 0.207 0.191 0.175 0.160 0.144 0.128 0.113 0.097 0.082 –
Impedance Z'0 mΩ/m 0.343 0.317 0.291 0.266 0.240 0.214 0.189 0.163 0.138 –
• for 5-pole systems (N)
to IEC 909, DIN VDE 0102
Resistance R'0 mΩ/m 0.220 0.197 0.173 0.149 0.126 0.103 0.079 0.056 0.032 –
Reactance X'0 mΩ/m 0.177 0.162 0.146 0.131 0.115 0.100 0.084 0.069 0.053 –
Impedance Z'0 mΩ/m 0.282 0.255 0.226 0.198 0.170 0.143 0.115 0.088 0.061 –
Short-circuit rating
Rated short-time withstand current
• for phase conductors rms value t = 1 s ICW kA 38 50 57 60 75 86 100 150 150 –
• for neutral conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
• of the 5th conductor rms value t = 1 s ICW kA 23 30 34 36 45 51 60 70 70 –
Rated impulse withstand current Peak value IPK kA 80 110 125 132 165 189 220 255 255 –
Conductor material Copper
Number of busbars 6 6 6 6 6 6 6 12 12 –
Conductor cross-section L1, L2, L3, (PE)1)
mm2
292 386 442 586 712 1192 1586 1892 2384 –
N mm2 584 772 884 1172 1424 2384 3172 3784 4768 –
Equivalent copper cross-section PE = Enclosure mm2 948 948 1018 1018 1135 1348 1348 2270 2696 –
Combustive energy
Trunking unit
• without tap-off point kWh/m 2.92 3.06 3.63 3.79 5.22 7.99 8.13 10.92 16.32 –
• per tap-off point kWh 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 2.9 –
Max. fixing intervals
for normal mechanical load
• Busbar position: horizontal, edgewise m 2 2 2 2 3 3 3 3 3 –
• Busbar position: horizontal, flat m 2 2 2 2 2 2 2 2 2 –
Weights kg/m 23.5 29 32.4 40.8 48.6 77.5 100.4 125.4 155.9 –
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48. Siemens LV 72 · 2005 3/21
LXA/LXC Busbar Trunking System
Tap-off units
3
Tap-off units
1) The rated current depends on the mounting position of the circuit-breaker.
If the tap-off unit is suspended (power tap-off below) a rated current reduc-
tion to 0.9 x Ie must be allowed for.
2) Cable entry requiresuse of cable glands with strain relief(not included in scope
of delivery).
3) The values are valid for tap-off units with NZM7 and NZM10. Tap-off units with
3VL on request.
General technical specifications
Standards IEC/EN 60439 Parts 1 and 2, VDE 0660 Parts 500 and 502
Climatic proofing Damp heat, constant, acc. to IEC 60068 Part-2-78
Damp heat, cyclic, acc. to IEC 60068 Part-2-30
Ambient temperature Min./Max. Mean level over 24 hours °C -5/40/35
Degree of protection IP54
Colour, tap-off units RAL 7035, light grey
Dimensions see page 3/53 „Dimensional drawings“
Weights see page 3/22 „Weights“
Material, tap-off units Paint finished steel enclosure
Rated insulation voltage Ui V~ 690
V - 800
Overvoltage category/pollution degree III/3, acc. to EN 60497–1
Rated frequency Hz 50
Rated operational voltage Ue V 400
Tap-off units with circuit-breakers
Rated current Ie A 80 160 400 630 8001)
A 100 200 – – 10001)
A 125 250 – – 12501)
Rated conditional short-circuit current Icc kA see chapter „Planning and Engineering“ – tap-off units
Connectable cross-sections (CU)
• L1, L2, L33)
mm2
1 x 25 ... 185 1 x 25 ... 185
2 x 25 ... 70
1 x 25 ... 240
2 x 25 ... 240
1 x 25 ... 240
2 x 25 ... 240
1 x 120 ... 185
2 x 95 ... 185
• N, PE, ISO-PE mm2
1 x 16 ... 35 1 x 50 ... 150
2 x 25 ... 70
1 x 70 ... 240
2 x 70 ... 120
1 x 70 ... 240
2 x 70 ... 120
1 x 70 ... 240
4 x 70 ... 120
Terminal bolt3)
M8 M8 M12 M12 M12
Cable entry
• at the end Yes Yes Yes No No
• at the side No Yes Yes Yes Yes
Multi-core cable
• Cable grommets 1 x M63 2 x KT4 2 x KT4 2 x KT4 4 x KT4
• Cable diameter (mm) 34 ... 48 14 ... 68 14 ... 68 14 ... 68 14 ... 68
Single-core cable2), ALU plate, without apertures 12 x M40 12 x M40 12 x M40 24 x M40
Tap-off units with fuse switch-disconnectors
Rated current A 100 160 400 630 –
A 125 250 – – –
Rated conditional short-circuit current Icf kA see chapter „Planning and Engineering“ – tap-off units
Connectable cross-sections (CU)
• L1, L2, L3 mm2
1 x 35 ... 95 1 x 50 ... 240
2 x 50 ... 120
1 x 95 ... 240
2 x 95 ... 120
1 x 95 ... 240
2 x 95 ... 120
–
• N, PE, ISO-PE mm2 1 x 16 ... 35 1 x 50 ... 240
2 x 50 ... 120
1 x 95 ... 240
2 x 95 ... 120
1 x 95 ... 240
2 x 95 ... 120
–
Terminal bolt M8 M8 M12 M12 –
Cable entry
• at the end Yes Yes Yes No –
• at the side No Yes Yes Yes –
Multi-core cable
• Cable grommets 1 x M63 2 x KT4 2 x KT4 2 x KT4 –
• Cable diameter (mm) 34 ... 48 14 ... 68 14 ... 68 14 ... 68 –
Single-core cable2)
, ALU plate, without apertures – 12 x M40 12 x M40 12 x M40 –
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49. Siemens LV 72 · 20053/22
LXA/LXC Busbar Trunking System
System components
3
Weights
Trunking units and feeder units
1) Weight information on request
Type Run
kg/m
Expansion unit
kg/m
-FA
PS/kg
-AS1
kg/m
-AS2
kg/m
-AS3
kg/m
-AS1-T
kg/m
-AS2-T
kg/m
-AS3-T
kg/m
-KE
PS/kg
LXA014(5)1 10.6 – – 14.6 14.4 14.2 17.4 16.8 16.3 –
LXA024(5)1 12.0 – – 15.7 15.5 15.3 18.7 18.1 17.5 –
LXA044(5)1 15.2 – – 18.4 18.2 18.0 21.9 21.2 20.5 –
LXA054(5)1 20.8 44.6 30.4 20.5 20.3 20.0 24.5 23.6 22.9 130
LXA064(5)1 25.6 – – 27.3 27.0 26.7 32.6 31.5 30.5 –
LXA074(5)1 31.3 – – 31.9 31.5 31.2 38.1 36.8 35.7 –
LXA084(5)1 42.0 – – 46.9 46.3 45.8 56.0 54.0 52.0 –
LXA094(5)1 51.3 – – 54.9 54.3 53.8 65.7 63.4 61.4 –
LXA104(5)1 62.6 137.9 89.6 64.2 63.4 62.8 76.4 74.3 71.7 –
LXC014(5)1 17.9 20.7 13.4 22.4 22.1 21.9 26.7 25.8 25.1 120
LXC024(5)1 21.6 24.0 15.6 26.0 25.7 25.5 31.1 30.0 29.1 120
LXC034(5)1 24.1 26.4 17.1 28.6 28.2 28.0 34.2 33.0 31.9 122
LXC044(5)1 29.7 31.5 20.5 34.1 33.7 33.4 40.8 39.3 38.1 122
LXC054(5)1 35.3 36.6 23.4 39.6 39.2 38.8 47.3 45.7 44.3 128
LXC064(5)1 55.2 54.7 35.6 59.3 58.7 58.1 70.9 68.4 66.4 134
LXC074(5)1 70.6 68.8 44.7 74.6 73.7 72.9 89.0 86.0 83.3 134
LXC084(5)1 88.9 90.1 58.6 97.7 96.6 95.6 116.7 112.7 109.3 –
LXC094(5)1 110.5 109.8 71.4 119.1 117.7 116.5 142.2 137.2 133.1 –
LXC104(5)11)
Type Run
kg/m
Expansion unit1)
kg/m
-FA1)
PS/kg
LXA0152 11.6 – –
LXA0252 13.3 – –
LXA0452 17.0 – –
LXA0552 23.8 59.5 40.5
LXA0652 29.3 – –
LXA0752 36.3 – –
LXA0852 48.5 – –
LXA0952 59.2 – –
LXA1052 73.2 184.0 119.5
LXC0152 20.7 27.6 17.9
LXC0252 25.3 32.0 20.8
LXC0352 28.2 35.2 22.8
LXC0452 35.2 42.0 27.3
LXC0552 41.9 48.8 31.2
LXC0652 66.3 73.0 47.5
LXC0752 85.5 92.0 59.6
LXC0852 107.2 120.0 78.1
LXC0952 133.2 146.4 95.2
LXC10521)
– – –
LXC0153 20.7 27.6 17.9
LXC0253 25.3 32.0 20.8
LXC0353 28.2 35.2 22.8
LXC0453 35.2 42.0 27.3
LXC0553 41.9 48.8 31.2
LXC0653 66.3 73.0 47.5
LXC0753 85.5 92.0 59.6
LXC0853 107.2 120.0 78.1
LXC0953 133.2 146.4 95.2
LXC10531)
– – –
LXC0154 23.5 37.6 24.3
LXC0254 29.0 43.6 28.4
LXC0354 32.4 48.0 31.0
LXC0454 40.8 57.3 37.3
LXC0554 48.6 66.5 42.5
LXC0654 77.5 99.5 64.7
LXC0754 100.4 125.0 81.2
LXC0854 125.4 163.8 106.0
LXC0954 155.9 200.0 129.0
LXC1054 – – –
Type Run
kg/m
Expansion unit1)
kg/m
-FA1)
PS/kg
LXA0161 11.6 – –
LXA0261 13.3 – –
LXA0461 17.0 – –
LXA0561 23.8 59.5 40.5
LXA0661 29.3 – –
LXA0761 36.3 – –
LXA0861 48.5 – –
LXA0961 59.2 – –
LXA1061 73.2 184.0 119.5
LXC0161 20.7 27.6 17.9
LXC0261 25.3 32.0 20.8
LXC0361 28.2 35.2 22.8
LXC0461 35.2 42.0 27.3
LXC0561 41.9 48.8 31.2
LXC0661 66.3 73.0 47.5
LXC0761 85.5 92.0 59.6
LXC0861 107.2 120.0 78.1
LXC0961 133.2 146.4 95.2
LXC10611)
– – –
LXA0162 12.6 – –
LXA0262 14.7 – –
LXA0462 18.9 – –
LXA0562 26.8 – –
LXA0662 33.1 – –
LXA0762 41.3 – –
LXA0862 55.0 – –
LXA0962 67.2 – –
LXA1062 83.7 – –
LXC0162 23.5 37.6 24.3
LXC0262 29.0 43.6 28.4
LXC0362 32.4 48.0 31.0
LXC0462 40.8 57.3 37.3
LXC0562 48.6 66.5 42.5
LXC0662 77.5 99.5 64.7
LXC0762 100.4 125.0 81.2
LXC0862 125.4 163.8 106.0
LXC0962 155.9 200.0 129.0
LXC1062 – – –
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50. Siemens LV 72 · 2005 3/23
LXA/LXC Busbar Trunking System
System components
3
Trunking units, feeder units and accessories
Joint blocks and end flanges
1) Weight information on request
Fixing brackets, fixed points and accessories
Type Run
kg/m
Expansion unit
kg/m
-FA
PS/kg
LXA0130 9.6 – –
LXA0230 10.6 – –
LXA0430 13.3 – –
LXA0530 17.8 33.5 22.8
LXA0630 21.8 – –
LXA0730 26.3 – –
LXA0830 35.5 – –
LXA0930 43.4 – –
LXA1030 52.1 103.4 67.2
LXC0130 15.0 15.6 10.0
LXC0230 17.8 18.0 11.7
LXC0330 19.9 19.8 13.0
LXC0430 24.2 23.7 15.4
LXC0530 28.6 27.5 17.6
LXC0630 44.0 41.0 26.7
LXC0730 55.8 51.6 33.5
LXC0830 70.7 67.6 44.0
LXC0930 87.8 82.4 53.5
LXC10301) – – –
Type -KB
kg/PS
-KB-AK1)
kg/PS
-EF
kg/PS
LXC01.. 4.1 – 2.8
LXC02.. 4.8 – 2.8
LXC03.. 5.3 – 3.3
LXC04.. 6.3 – 3.3
LXA05.. 8.7 – 4.2
LXC05.. 7.3 – 5.8
LXC06.. 10.9 – 5.8
LXC07.. 13.8 – 8.4
LXC08.. 18.0 – 11.4
LXC09.. 22.0 – 11.4
LXA10.. 27.6 – –
LXC10..1)
– – –
Type Weight
kg/PS
LX-BH 1.0
LX02-BF 1.0
LX04-BF 1.1
LX05-BF 1.2
LX07-BF 1.3
LX08-BF 1.6
LX10-BF 1.9
LX-BHF 2.0
LX02-BFF 2.0
LX04-BFF 2.2
LX05-BFF 2.4
LX07-BFF 2.6
LX08-BFF 3.2
LX10-BFF 3.8
LX-K 0.4
LX...-BV 7.6
LX...-BV-AK 7.6
LX...-BVD 2.7
LX...-BVFP1 3.3
LX...-BVFP2 3.3
LX-V 3.0
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51. Siemens LV 72 · 20053/24
LXA/LXC Busbar Trunking System
System components
3
Straight trunking units with expansion units
Tap-off units with NZM7 and NZM10
Tap-off units with Sentron 3VL1)
1) Details on request
Tap-off units with fuse switch disconnectors
PEN jumper for connection of N with PE in AK
3-pole
Type
Weight
kg
4-pole
Type
Weight
kg
LX-AK5(6)/LSH-80S-3 9.5 LX-AK5(6)/LSH-80S-4 11.0
LX-AK5(6)/LSH-100S-3 9.5 LX-AK5(6)/LSH-100S-4 11.0
LX-AK5(6)/LSH-125S-3 9.5 LX-AK5(6)/LSH-125S-4 11.0
LX-AK5(6)/LSH-160S-3 19.0 LX-AK5(6)/LSH-160S-4 20.5
LX-AK5(6)/LSH-200S-3 19.0 LX-K5(6)/LSH-200S-4 20.5
LX-AK5(6)/LSH-250S-3 19.0 LX-AK5(6)/LSH-250S-4 20.5
LX-AK(6)/LS-400S-3 37.2 LX-AK(6)/LS-400S-4 40.0
LX-AK(6)/LS-630S-3 37.2 LX-AK(6)/LS-630S-4 40.0
3-pole
Type
Weight
kg
4-pole
Type
Weight
kg
LX-AK5(6)/LS-DC50-H(L)S – LX-AK5(6)/LS-EC50-H(L)S –
LX-AK5(6)/LS-AE(DC)63-H(L)S – LX-AK5(6)/LS-EC63-H(L)S –
LX-AK5(6)/LS-DC80-H(L)S – LX-AK5(6)/LS-EC80-H(L)S –
LX-AK5(6)/LS-AE(DC)100-H(L)S – LX-AK5(6)/LS-EC100-H(L)S –
LX-AK5(6)/LS-DC125-H(L)S – LX-AK5(6)/LS-EC125-H(L)S –
LX-AK5(6)/LS-AE(DC)160-H(L)S – LX-AK5(6)/LS-EC160-H(L)S –
LX-AK5(6)/LS-AE(DC)200-H(L)S – LX-AK5(6)/LS-EC200-H(L)S –
LX-AK5(6)/LS-AE(DC)250-H(L)S – LX-AK5(6)/LS-EC250-H(L)S –
LX-AK5(6)/LS-AE(DC)315-H(L)S – LX-AK5(6)/LS-EC315-H(L)S –
LX-AK5(6)/LS-AE(DC)400-H(L)S – LX-AK5(6)/LS-EC400-H(L)S –
LX-AK5(6)/LS-AE(DC)630-H(L)S – LX-AK5(6)/LS-EC630-H(L)S –
LX-AK5(6)/LS-AE800-LS – LX-AK5(6)/LS-BE800-LS –
LX-AK5(6)/LS-AE1000-LS – LX-AK5(6)/LS-BE1000-LS –
LX-AK5(6)/LS-AE1250-LS – LX-AK5(6)/LS-BE1250-LS –
3-pole
Type
Weight
kg
4-pole
Type
Weight
kg
LX-AK5(6)/FSH-100NF-3 9.3 LX-AK5(6)/FSH-100NF-4 9.8
LX-AK5(6)/FSH-160NF-3 19.1 LX-AK5(6)/FSH-160NF-4 19.6
LX-AK5(6)/FSH-125IEC-3 9.6 LX-AK5(6)/FSH-125IEC-4 10.1
LX-AK5(6)/FSH-125BS-3 9.6 LX-AK5(6)/FSH-125BS-4 10.1
LX-AK5(6)/FSH-250IEC-3 20.5 LX-AK5(6)/FSH-250IEC-4 21.8
LX-AK5(6)/FSH-250BS-3 20.5 LX-AK5(6)/FSH-250BS-4 21.8
LX-AK(6)/FS400IEC-3 32.9 LX-AK(6)/FS400IEC-4 34.2
LX-AK(6)/FS400BS-3 32.9 LX-AK(6)/FS400BS-4 34.2
LX-AK(6)/FS630IEC-3 – LX-AK(6)/FS630IEC-4 –
LX-AK(6)/FS630BS-3 – LX-AK(6)/FS630BS-4 –
Type Weight
kg
LX-PEN400 0.3
LX-PEN630 0.4
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52. Siemens LV 72 · 2005 3/25
LXA/LXC Busbar Trunking System
System components
3
■Selection and ordering data
Straight trunking units
1) All types with copper conductors
Note:
Fire barrier is possible for optional lengths from 1.04 m.
For completing the ordering details:
For Type Reference Key/Important Notes see Page 3/4 and 3/5.
Examples: LXA0141-3
LXA0141-1W0,48
LXA0141-2 +LX01-S120-X1,0
Length
L/W/D
Type Type suffix
Fire barrier
m $ %
without tap-off points
Standard lengths
3.0 LX.....-3 +LX.....-S120-X*
2.0 LX.....-2 +LX.....-S120-X*
1.0 LX.....-1
Optional lengths
0.35 - 0.99 LX.....-1W*
1.01 - 1.99 LX.....-2W* +LX.....-S120-X*
2.01 - 2.99 LX.....-3W* +LX.....-S120-X*
Phase sequence reversal unit
on request 1.25 LX.....-P
Expansion unit1)
1.0
Expansion =
LX.....-D
L
W
D
* The types must be completed with the corrsponding dimensions.
The types must be completed with the type suffix, if necessary.
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53. Siemens LV 72 · 20053/26
LXA/LXC Busbar Trunking System
System components
3
Note:
When engineering the tap-off point(s) take into account the di-
mensions of the tap-off units, see chapter “Planning and
Engineering“.
For completing the ordering details:
For Type Reference Key/Important Notes see Page 3/4 and 3/5.
Examples of trunking units with
3 tap-off points at top and bottom:
LXA0141-3-ADO-U+LX-A+LX-C+LX-E
Length
L
Position of the tap-
off point
AD (O-U)
Type Type suffix
Tap-off point
m m $
with tap-off points
Standard length with max.
5 optional tap-off points at top and bottom
3.0 0.67 LX.....-3-ADO-U +LX-A
1.17 +LX-B
1.67 +LX-C
2.17 +LX-D
2.67 +LX-E
Standard length with max.
5 optional tap-off points
On one side 3.0 0.67 LX.....-3-AD +LX-F
1.17 +LX-G
1.67 +LX-H
2.17 +LX-I
2.67 +LX-K
Standard length with 1 tap-off point
On one side 2.0 1.17 LX.....-2-1AD
L
ADO-U
ADO-U
ADO-U
ADO-U
ADO-U
L
AD
ADADADAD
L
AD
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