Larsen & Toubro Limited (L&T) is a large Indian manufacturing company that produces switchgear and other electrical equipment. L&T has manufacturing facilities in Mumbai, Ahmednagar, and Coimbatore, India that use processes like Lean Manufacturing and Six Sigma. The facilities are ISO 9001 and ISO 14000 certified for quality. L&T switchgear products are distributed through a network of over 700 stockists across India. Internationally, L&T has customers in over 40 countries for its switchgear products. It also provides training programs and after-sales service to customers.

2. Larsen & Toubro Limited
Manufacturing Facilities
L&T's manufacturing facilities for
standard switchgear products are at
Mumbai, Ahmednagar and
Coimbatore. These facilities follow
world-class processes including
The Company Lean Manufacturing, Forced Draft
Larsen & Toubro is a technology- Ventilation System, TQM, Value
driven USD 5 billion company Engineering, JIT and Six Sigma. The
that infuses engineering with manufacturing units have a testing
imagination. The Company offers a facility that includes 85kA short
wide range of advanced solutions circuit test station.
in the field of Engineering, The quality management systems at
Construction, Electrical & L&T's factories conform to ISO 9001
Electronics, Machinery and & ISO 14000 Standards.
Information Technology.
L&T Switchgear, which forms part of Distribution
the Electrical & Electronics L&T Switchgear is available through
business, is India's largest a network of more than 700
manufacturer of low voltage authorized stockists, one of the
s w i t c h g e a r, w i t h t h e s c a l e , largest distribution networks in the
sophistication and range to meet industry.
global benchmarks. With over four
decades of experience in this field, International Sales
the Company today enjoys a L&T Switchgear has found
leadership position in the Indian acceptance not only in India but has
market with growing presence in customers in over 40 countries like
international markets. Malaysia, Singapore, Taiwan, China,
It offers a complete range of Hong Kong, Indonesia, Sri Lanka,
products including controlgear, Bangladesh, UAE, Qatar, Oman,
powergear, motor starters, energy Bahrain, Saudi Arabia, Kuwait, Iran,
meters, wires and host of other Turkey, Egypt, Nigeria, Kenya and
accessories. The products conform UK .
to international standards, carry CE
markings and are KEMA certified.
Switchgear Factory, Ahmednagar
Switchgear Factory, Mumbai

3. Training
L&T's Switchgear training centres at
Pune, Lucknow and Coonoor have
state-of-the-art training facilities with
well equipped workshops and
Environment & Community
testing systems. Training programs
The Company has a comprehensive
are designed to suit the needs of
Quality, Environment and Safety
electrical professionals from various
management system. The
areas like maintenance, projects,
manufacturing facilities conform
panel design and consultancy. Over
to ISO 14001(Environmental
55,000 participants have benefited
Management System) & OSHAS
from these programs.
18001 by BVQI.
L&T has taken a number of
community initiatives in rural & After Sales Service
semi–urban areas across the The Company has over 40 branch
country. These include health offices across the country and a
checkup camps like cancer network of over 100 service centres
detection, eye checkup, and general to deliver after-sales-service to its
checkup in partnership with the customers. Segment Focus
stockists. L&T supports schools A range of service solutions is L&T has a wide range of products &
through distribution of PCs, books, available to support the switchgear, solutions to address every
and uniforms and providing teaching right from installation till the customer requirement.
staff. L&T has also come to the complete life cycle. They come in the
rescue of common man at the time of form of preventive maintenance, The Company has dedicated
natural calamities like floods and breakdown maintenance, retrofits specialists for vital segments like,
earthquakes, helping the community and upgrades. Industry, OEM, Agriculture,
by distributing clothes, food and Building and Utilities.
essential commodities.
Training Centre, Lucknow
Training Centre, Coonoor
Training Centre, Pune

4. A complete range of
Electrical Standard Products

5. TE NT S
C ON
Air Circuit Breakers 1
Moulded Case Circuit Breakers 3
Switch Disconnector Fuses 5
Changeover Switches 6
High Rupturing Capacity Fuses 6
Contactors 7
Thermal Overload Relays 8
Starters 9
Soft Starters 9
Motor Protection Circuit Breakers 9
AC Inverter Drives 10
Programmable Logic Controllers 10
Digital Protective Relays 11
Rotary Switches 11
Reactive Power Management Solutions 12
Control Accessories 12
Current Transformers 13
Indicating Meters 13
Electronic Energy Meters 14
Modular Devices - Hager 16
Modular Devices - Tripper 18
Tebis : Live Life Freely 20
Wires 22
Busbar Trunking System 22

6. Complete Range of Electrical Standard Products
A IR UIT
C ERS
CIR AK
B RE
C-POWER U-POWER
• Comprehensive range: 400 A to • 400 A to 6300 A in four
6300 A optimized frame sizes
• Ics=Icu=Icw for complete • Standard 100% neutral rating.
selectivity C-POWER 50% and 200% neutral ratings
• Proven track record of over also available
300,000 installations in 40 Comprehensive range of • Unique arc chute interlock
years microprocessor based protection prevents breaker closing when
• Elegant design and rugged and control units with true-RMS arc chute is missing
construction sensing, self-powered protections, • Smart racking shutter ensures
• Unique pole design for bounce- fault annunciation & communication total safety in racking operations
free operation capabilities • Unique pole design ensures
• High mechanical and electrical energy saving through low watt
life SR61C - Communication capable
loss
• Optimally compact ACBs with protection and control units with
• Common height and depth
adequate terminal capacity and current metering, fault history and
across the range
low temperature rise zone selective interlocking
• Display of complete accessory
• Suitable for direct termination of information on front facia
aluminium links SR21i - Overcurrent and earth
• Tool-less fixing of voltmetric
• Distinct 'maintenance' position in fault protection with zone-
releases
draw-out ACBs selective interlocking
• Suitable for direct termination of
• Common depth and height up to aluminium links
4000 A SR18/18G - Practical all round
• Independent locking of ON / OFF
• In-built mechanical anti-pumping solution with over current and
buttons
feature earth- fault protections
• Optimally compact dimensions,
• marking for C & H range of without sacrificing termination
ACBs area
1

7. AIR UIT S
RC K E R
CI EA
BR
U-POWER
• Comprehensive range of micro • Comprehensive solution for
controller based protection protection and power
and control units management
• Real-time on-line graphical • Controls up to 32 devices on
representation of protection MODBUS protocol, extendable
characteristics on high resolution to 256 devices
LCD display • Customized single line diagram
• Basic protection independent of of power system
external power supply • Integrates all communicable
• Additional protection for voltage L&T products viz. ACBs,
variation, frequency variation, MCCB s and meters
undercurrent, reverse power, • Intuitive Windows based
temperature rise, earth leakage graphical user interface (GUI)
and restricted earth fault • Remote real-time monitoring
• Event recording and fault history and data acquisition
• Metering of current, voltage, • Comprehensive reporting and
power, energy, frequency and alarm management
power factor • Real-time and historical trending
• Communication capable on • Multi-level password protection
MODBUS protocol
• Trip circuit supervision
• Two storable settings
2

8. Complete Range of Electrical Standard Products
ED
LD E
OU AS IT
M C U S
I RC K E R
C EA
BR
MCCB: Type DH
• Wide range: 12 A to 630 A
• Breaking capacity up to 65kA
MCCB: Type DU • Available in 3 pole and 4 pole
• Available range: 32 A to 200 A • No line load bias
• Breaking capacity up to 30kA • High electrical and mechanical
• Aesthetic and compact life
• High electrical and mechanical • Low let through energy and low
life cut-off current
• Total safety to user • Adjustable thermal releases
• Available in SS enclosures • Add on earth fault modules
• High vibration and shock resistant • Special MCCBs for motor,
• Conforms to IS 13947-2, generator and furnace protection
IEC 60947-2, EN 60947-2 • Suitable for copper and aluminium
terminations
• Safe to install & use
• Conforms to IS 13947-2,
IEC 60947-2, EN 60947-2
3

9. ED
LD E
OU AS IT
M C U S
Release Features
RC 10
• Micro-processor based design
I RC K E R
C EA
BR
• Overload protection with fixed
time delay
• Short circuit protection with two
time delay settings
• Instantaneous over ride
protection
• Earth fault protection with two
time-delay settings
• Built-in CTs
• Self diagnostic test possible
MCCB : Type DN • Wide range of selection MCCB: Type DN0
• Complete range: 16 A to 1600 A • Available in ratings from
• True RMS sensing
in 3 pole / 4 pole versions 20 A to 100 A
• Selfpowered
• Breaking capacities up to 100kA • Breaking capacity - 30kA
• Micro-controller based intelligent RC 20
• O/L with selectable, S/C Inst • Compact size: 75 x 130 x 60
and communication capable suitable for side-by-side
protection and control units over ride protection
• E/F with selectable time delay mounting
• Global bench marking-KEMA • Specially designed ‘speedo-
certified • Backlit LCD display
• Metering for current quench’ contact system and ‘arc
• Positive isolation suction effect’ arc chutes provide
• User friendly features • Protection against unbalanced
load efficient arc quenching
• Ergonomic design • Adjustable overload setting
• Superior safety features, safe to • l2t protection, neutral protection,
cold load protection • Easy ON / OFF / RESET
install & use operations
• Conforms to IS 13947-2, • Time resolution in current and
time delay setting • Wide variety of click-fit accessories
IEC 60947-2, EN 60947-2
• Wide range of internal & external • User friendly navigation system
accessories • Selfpowered for basic protection
• Communication using RS 485
Port and MODBUS RTU protocol
4

10. Complete Range of Electrical Standard Products
CH CTOR
IT E SDFs: Type FN
SW NN S • Ratings: 32 A to 800 A
• Version: TP/TPN
CO USE
• High short circuit rating of fuses
IS F
(100kA)
• Full AC-23 A utilization category
D • Positive isolation of fuses
• Quad break contact system
• Separate arcing and current
carrying zones
• High clearance and creepage
distances
• Phase barriers
• Suitable for aluminium
terminations
SDFs: Type FNX • Built-in isolable or add-on
• Ratings: 32 A to 800 A in six switched neutral
frame sizes • Easy inspection and replacement
• AC-23 A rating for the complete of contacts
range • Suitable for horizontal and
• Available in TPN and four vertical terminations
pole versions • Clear ON / OFF indications
• High short circuit capacity of fuses • Available in sheet steel enclosure
(100kA) • Conformance to IEC 60947-3 and
• Electro dynamically compensated IS 13947-3
contact system • Switch interiors for panel
• Versatile handle (patented) mounting type FF / FFO / FAC
• High clearance and creepage Accessories
distances • Handle assembly (Type A/B/C/E)
• Suitable for copper and • Shaft extension kit
aluminium terminations • Switched neutral kit
• marking and conformance to • Auxiliary contact kit
IS 13947-3, IEC 60947-3 • Mechanical interlock kit
• Easy inspection and replacement • Castell interlock
of contacts • Terminal shroud kit
• Fuse barriers to prevent inter • Interphase barrier kit
phase short circuits Spares
• DIN rail mounting up to 100 A • Handle assembly
• Suitable for horizontal and • Front housing assembly
vertical installations • Spare kit of contacts
• Terminal shrouds for safety
• Telescopic shaft for the handle
(stepless adjustment)
• Clear ON / OFF indication
• Aesthetic appearance
Accessories
• Auxiliary contact kit
• Castell lock
• Fuse operation indicator
• Extended terminal shroud
• Fuse puller unit
• Mechanical interlock kit
5

11. GH ING
HI UR T Y
P T AC I
RU A P S E S
ER C FU
OV S
GE HE
AN ITC
CH SW DIN Fuses Type HN
•
•
Ratings: 63 A to 800 A
High breaking capacity (100kA)
• Low watt loss
• Low let-through energy
• Immediate fault indication
• Size: 0 to 3
Type FG
• Excellent aesthetics Cylindrical Fuses
• Ratings: 63 A to 1600 A
• High making and breaking Type HF
capacities • Ratings: 2 A to 63 A
• Highly reliable • High breaking capacity (80kA)
• Convenient single handle • Low watt loss
operation • Immediate fault indication
• Suitable for tropical conditions • Same size from 2 A to 63 A
• Quick make and quick break
mechanism Bolted Fuses Type HG
• Reduced operating torque • Ratings: 2 A to 32 A
• Conformance to IEC 60947-2 & 3 • High breaking capacity (80kA)
and IS 13947-2 & 3
Accessories
• Safety key lock
Bolted Fuses Type HQ
• Ratings: 2 A to 630 A
• Auxiliary contacts
• High breaking capacity (80kA)
• Clutch handle
• Terminal shroud Accessories
• Fuse base
• Fuse pulling handle
6

12. Complete Range of Electrical Standard Products
TO RS
NTAC
CO
Power Contactors
• Rating: 9 A to 550 A
• Available in six frame sizes
• Easy inspection and replacement
of coils and contacts
• Alpha-numeric terminal markings
• Front ON / OFF indication
• Aesthetic appearance
• Marked and approved
• Conforms to IEC 60947-4-1,
BSEN 60947-4-1 & IS 13947-4-1
• Entire range UL certifyed
• Operating band from 62 % to
120% up to 32 A Control Contactors
Special features of Single-Pole Contactors
9 A - 40 A Contactors Type MR 1 Type MN0
• Suitable up to 8 NO / 8 NC
• Snap fit construction • Available in ratings 16 A, 25 A and
contact combinations (with add-
• Fingerproof terminals 40 A
on)
• Common coil for entire range • The ultimate solution for heating,
• Snap fit DIN rail mounting
Accessories ventilation and air-conditioning
• Suitable for AC / DC operation
• Add-on auxiliary contact block applications
• Alpha-numeric terminals
• Surge suppressor • Available with screw and fasten
eliminate wiring errors
• Mechanical interlock kit type terminations
7

13. TO RS AL D
AC R M OA
NT HE RL S
T E Y
CO OV R E L A
Mini Contactors
Type MX Type MNX R
4 Pole Contactors • Suitable for both control • Ratings: 0.20 A to 570 A
power applications
Type MCX • AC/DC versions available
• Inbuilt single phasing protection
• Ratings: 16 A to 700 A ( AC1duty) • Suitable for direct/separate
• Front ON / OFF mechanical mounting
• Suitable for gen-set applications indication
• Available in five frame sizes • Built-in ‘START’ and ‘OFF /
• Base and DIN rail mounting RESET’ push buttons
and eighteen current ratings facility
• Alpha-numeric terminal marking • Auto and manual reset modes
• Finger proof terminals • Ambient temperature
• Conforms to IEC 60947-4-1,
IS 13947-4-1 standards • Built-in surge suppressor for compensation: -50C to +550C
• Wide operating band up to DC contactors • Electrically separate NO contact
100 A AC1 • Direct mounting of overload • Conformance to IEC 60947 and
• MCX range to replace MC relays IS13947
range of 4 pole contactors • Wide range of accessories Accessories
• Enhanced appearance • Pushbutton unit
• Conforms to IEC 60947-4-1,
• Relay mounting kit
IS 13947-4-1 standards
8

14. Complete Range of Electrical Standard Products
RS
AR
TE TORTION
ST MOTEC IT
RO I RC U E R S
P C K
Type MN BR EA
• Excellent aesthetics
• Flush mounted push buttons
FT RS
SO TE
• Built in single phase protection
relay
• Suitable for rural and industrial
motor application
• Enclosures with IP54 degree of
protection
STAR Type MNX
• Compact in size
• High short circuit breaking
• Lockable push button capacity (50kA)
• Terminal block for ease of • Current limiting design
termination • Door coupling handle for clear
• Copper and aluminium
terminations possible
Soft starters ON / OFF / TRIP indication
• Total motor starting solution • Conforms to IEC 947-2 & 3,
• Conforms to IS 13947-4-1 and IEC 947-4-1 standards
• Range : 7.5 kW to 800 kW
IEC 60947-1 standards • DIN-rail mounting for the
@ 400 V
Direct-On-Line Starters • Wide control voltage range entire range
• Suitable for motors up to 45 hp (110 – 440 V AC) • Wide range from 0.16 A to 63 A
• Wide band of operating voltage • XLR8 adaptive acceleration with adjustable overload
• Wide range of relay settings and control • D i ff e r e n t i a l t r i p i n d i c a t i o n
coil voltages • Timed voltage ramp, constant facility for trip alarm contact
Star-Delta Starters current, torque control, kick Accessories
• Suitable for 10 hp to 400 hp start • Standard auxiliary contacts
motors • Soft stopping (front and side mounting)
• Base plate mounting with • Soft braking • Trip indicating auxiliary contacts
rubber gasket makes the starter • Phase sequence protection • Shunt release
assembly vibration proof • Auto start • Under voltage release
• Available in semi automatic and • Fault history • Door coupling rotary handle
fully automatic versions • Communication on RS 485
• Electronic timers in fully • Forward / Reverse jog
automatic starters for high functions
repeat accuracy
9

15. ACRTER
VE IVES
I N DR LE RS
AB LE
MM OL
RA NTR
OG CO
PR I C
LOG
• New generation Yaskawa AC
drives with latest technological
advancements in AC induction
motor speed control Programmable Logic
• Adjustable S-curves for acceleration
and deceleration Controller ( PLC)
• DC injection braking at start • Compact & modular
or stop • Wide range : 10 – 1600 I/Os
• Power loss ride-through - for • On board I/O mapping for `
protection against momentary faster setup
power loss / under voltage • 2 in-built communication ports
• Volts / frequency ratio - fully (MODBUS / user defined
adjustable protocol)
• Drive efficiency 96% / 98% • Run / remote / programming
• Many protective features like switch - on board
torque limit, heat sink over-heat, • User friendly windows based
current limiting DC bus fuse, programming software for
motor overload protection and entire range
single phasing protection • Advanced software features,
• Operating temperature -10 to +60 0C offline simulator & time chart
monitoring
10

16. Complete Range of Electrical Standard Products
TA H RYES
RO I T C
SW
AL IVE
IT T
IG EC
D T YS
RO E L A
• Ratings: AC : 6 A - 600 A
DC : 16 A - 500 A
P R • Standard and customized
switches
• Suitable for AC / DC applications
• Break before make/Make before
break type switches
• Flexibility of operating positions
and switching angles
• Multistep programming switches
• Versatile mounting options to
• Compact and lightweight meters
suit variety of applications
• Self-diagnostic feature ensures
• User defined marking on the
complete reliability
script plates
• Low power burden
• DIN rail mounting facility
• Communication capable
• Choice of attractive colors in
• O ff e r s m u l t i p l e p r o t e c t i o n
front knob plate
• Flexibility in selection of
• Padlocking switches for safety
protection curve
• Conforms to latest standards Types available
IEC 6100, IS 3231 and IS 8686 • AC switches (series S, TP and
RT)
Product Range
• AC / DC switches (series D)
• Single phase & three phase over
• Spring return switches
current and earth fault relays
• Under-voltage & over-voltage Applications
• Control supervision • Isolator
• Power factor control • Changeover switches
• Motor protection • Multi-step switches
• Generator protection • Gang switches
• Transformer protection • Selector switches
• Control switches
• Motor switches
11

17. IVE
CT ER NT
EA W E
R O EM
P G ION
N A LUT OL IES
A O
M S NTR OR
CO ESS
AC C
Power Factor Correction
Capacitors
• Self Healing (SH) type as Push Buttons /
per IS 13340 & 41
Normal duty Metalised Poly Actuators / Timers, Time
Polypropelene MPP-SU LED indicators Switches,
Heavy duty Metalised
polypropylene MPP-4
• New design to meet end user Hour Meters &
requirement
Super heavy duty - Mix • Can accommodate 1 NO block or Supply Monitors
Dielectric low loss MD-XL 1 NC block or 1 bulb holder • Auto reset synchronous timers
• Non Self Healing (NSH) type • No screws required for assembly • Electronic timers
as per IS 13585 • Ease in mounting and wiring ON delay, cyclic, OFF delay,
Mixed Dielectric (MD) • Excellent aesthetics Star Delta
Film Foil - FF (or APP) • International approvals Asymmetrical ON / OFF
Harmonic Mitigation Devices VDE • Supply monitors
• Reactors 7%, 14% & custom Types available Single phasing preventor
design & setting • Modular remote control units U/V + O/V relay
• Detuned filter units in various • Push button actuators, pendants • Hourmeters
ratings and stations Electromechanical Digital
Automatic Power Factor • Selector switches & accessories • Time switches
• LED indicators Electromechanical time
Correction Solution (APFC)
• Filament indicators and spares switches
for variable loads • Modular blocks and spares Digital time switches
• APFC with power factor Astronomical time switchs
• All purpose enclosures and
correction capacitors
spares
• APFC with Harmonic filters
Active filters for special
applications
12

18. Complete Range of Electrical Standard Products
NT ERS
RE RM
UR FO
C S
TR AN NG
TI S
ICA ER
Features
ND ET
I M
lCost effective moulded case
measuring current
transformers
lLimited range include the
seven most popular sizes
of current transformers
lRatio ratings from 30/5 to
4000/5
lWide range of current ratings,
busbar sizes, case
Available in
• Sizes - 48 x 48, 72 x 72,
widths and apertures
96 x 96 and 144 x 144
lSealable terminal covers
• Scale - 900 and 2400
lBase mounting and busbar
• Version - AC / DC
mounting option
Applications Types
Vo l t m e t e r, A m m e t e r,
lSwitchgear
lDistribution system Wattmeter
lGenerator sets Ammeter (CT operated)
lControl panels P o w e r f a c t o r m e t e r,
lOverload protection frequency meter
lControl devices Dual meters-available in
various combinations
13

19. IC RS
ON TE
TR ME
EC Y
E L RG
E NE
Quasar - Intelligent
Panel meter
• All instantaneous and cumulative
values Acrux - Three-Phase
• Flush mounting - 96mm x 96mm
Digital Panel meter overall size (cutout size - 92mm x
Energy meter
• Flush mounting - 96mm x 96mm
and Multifunction 92mm)
overall size (cutout size - 92mm x
• Class I accuracy
meter • Separate display of fundamental
92mm)
• 3 line, 4 digit LED display • Compact and light-weight
and total harmonic values for
• Accuracy of 0.5% • Class I accuracy as per IS 13779
currents and voltages of all
• 14-50 parameter display in digital • LED indication proportional to
phases
multifunction meter kWh for on spot calibration
• Front panel programming
• On site programmable PT / CT • Meter records correct energy
• Communication interface via
ratio Irrespective of current
RS 485 port & MODBUS
• User selectable CT 5A / 1A direction
protocol
• User selectable 3ph, 3 wire and 4 Balance and imbalance
line condition with any phase
sequence
14

20. Complete Range of Electrical Standard Products
IC RS
ON TE
TR ME
EC Y
E L RG
E NE
Energy Management
System, Power
Navigator Type
Trivector meter ER300N
• 0 .5 / 1 .0 c l a s s a c c u r a c y
Type ER300P • User-friendly software for PC
• 0.2 / 0.5 / 1.0 class accuracy operation
Electronic kWh Meter • Multi tariff capability with • Communication interface via
RS 485 port and MODBUS
• Single and three phase programmable TOD protocol
versions available • Three programmable maximum • Back-lit LCD display
• Current reversal indication demand (MD) registers • Front panel programming
• LED indication proportional to • Ta m p e r / f a i l u r e d e t e c t i o n
kWh for on-spot calibration
• Six digit counter
and record capability Demand Controller
• D u s t p r o o f b o d y, r u g g e d • Communication interface via • 4 output contacts for early
construction, elegant optical port conforming to alarms and tripping of non
polycarbonate casing essential loads
IEC 1107 protocol / RS 232 / RS
• Not affected by mounting • MD control by monitoring rising
485
position demand
• Battery back-up for data storage
• N o t a ff e c t e d b y e x t e r n a l • 0.5 / 1.0 class accuracy
• Available in projection & flush
magnetic field Type ER300D
• Earth load tamper indication mounting versions • User-friendly software for PC
in single phase energy meter operation
• Three phase energy meters • Communication interface via
work even on neutral removal RS 485 port & MODBUS protocol
15

21. AR -
UL ES
OD IC r
M EV e
D hag
Miniature Circuit Residual Current
Breakers (MCBs) Circuit Breakers
• Protects against overload and (RCCBs)
short circuits in domestic, • Provides protection against
co mmerci a l and i n dustri al electric shocks & earth leakage
electrical distribution systems • Available in DP and FP versions
• High breaking capacity of 10 kA in 25 A, 40 A, 63 A and 100 A
• Available in SP, DP, TP & FP ratings with 30 mA, 100 mA and
versions in B, C and D curve, 300 mA sensitivity
widest range from 0.5 to 125 A • Avoids nuisance tripping
ratings • Conforms to IEC 61008
• Two position DIN rail clips • Provided with true contact
allows faster installation indication and earth fault
• SP MCB is suitable for DC indication for further safety
applications up to 60 V • Also available in RCCB - Hi
• Conforms to latest standards version
IEC 60898, IEC 60947, IS 8828- RCBOs
1996 • Offers 3 in 1 protection against
Accessories for MCBs and earth leakage, short circuit and
RCCBs overload
• Auxiliary contact (1 NO+1 NC) • Rating : 6 A to 32 A in 2 pole with
• Trip alarm contact 30 mA and 300 mA sensitivity in
• Shunt release 2 module version
• Under-voltage release • Breaking capacity 4.5 kA
• Locking kit • Conforms to IEC 61009
• Flush-mounting kit Also available:
Earth Leakage Relays and
Voltage Surge Devices
16

22. Complete Range of Electrical Standard Products
AR -
UL ES
OD IC r
M EV e
Distribution Boards D hag
• Widest range of sheet metal and
plastic DBs & enclosures
designed
• Available in SPN, TPN, for
phase isolation, Flexi, VTPN,
Phase change over, Phase
segregated DBs
• Plug & Socket outlets and one
way enclosures are also available
in range
• Suitable for flush & surface
mounting
• Finger proof DBs range -
available with IP30, IP43
and IP54 degree of protection
• Choice for plain & glazed door
in IP43 DBs
• Complete DB - provided with all
accessories like busbar, wire Busbars
sets, blanking plates, • Insulated fork busbars are rated Automation &
identification labels, cable ties, upto 63 A and are available Control Devices
earth bar and insulated N-bars in 1, 2, 3 and 4 pole versions • Isolators, two-way-center-off
• Additional safety - by providing • Enable safe and fast connection changeover switches
door earthing, plastic inserts on of 1 to 4 pole devices by a • Modular electro-mechanical and
corners, hazzard labels, cement common busbar system digital time switches
spill protector, etc • End caps available for 2P, 3P • Time lag and twilight switches
• Additional convenience - and 4P busbars to avoid tracking • Modular bells and buzzers
provided with removable front between phases • Electronic thermostats
plate and frame, removable gland • Dimmers and dimming systems
plates, DIN rail stopper, two piece • Analog voltmeter and ammeters
auto lock door knob, etc
17

23. AR -
UL ES
OD IC
M EV
D
Miniature Circuit
Breaker
• Conforms to latest standards like
IS 8828, EN / IEC 60898-1-2003
• Carries and ISI markings and
also KEMA certification
• Breaking capacity of 6 kA for
entire range Isolator
• Available in B Curve in SP & DP • Conforms to latest standards
and C Curve in SP, DP, TP & FP like IS 13947, EN / IEC 60947-3
versions from 6 A to 40 A ratings • Carries marking and KEMA
• Unique - true contact Indication certification
shows actual status of contact • Available in range of 40 and 63 A
• Low power loss - almost 50% of in DP, TP and FP versions
the values prescribed by IEC • Suitable for AC 22-A utilization
• Terminals are suitable up to 35 category
sq.mm wire, provided with dual • Finger proof terminals IP20
termination facility degree of protection
• No line-load bias • Ergonomically designed,
• Suitable for isolation profiled for superior cooling
and manufactured with fire
retardant material
18

24. Complete Range of Electrical Standard Products
AR -
UL ES
OD IC
M EV
D
Distribution Boards -
Tripbox
• Av a i l a b l e i n a e s t h e t i c a l l y
superior ivory colour to suit the
Earth Leakage + interiors of buildings and can be
Miniature Circuit supplied in different colour for
bulk requirements
Breaker (EL+MCB) • Readily available in IP30 (single
• Provides 3 in 1 protection door) & IP42 (double door)
against earth leakage, short degree of protection
circuit and overload. It also • Distribution boards are suitable
avoids excessive metering for flush and surface mounting
due to leakage • Ready to use DBs - provided
• Conforms to latest standards with 100 A phase busbar, wire
like IS 12640, EN / IEC 61009-1 set, earth & neutral bars as
• Carries and ISI marking standard
• Available in DP & FP versions in • Provided with removable top
the range of 6 to 63 A with and bottom gland plates with
30 mA or 100 mA or 300 mA adequate knockout for easy
sensitivity wiring
• Truly current operated, operates • For bottom entry, neutral bar
even at nominal 1 volt can be shifted to bottom for
• Featured with neutral advance comfortable wiring
mechanism • TPN DBs will have provision to
• Operation even in case of accommodate 6 MOD incomer
neutral failure • Easy installation and flexibility in
usage
19

25. BI S: E
TEVE LIF Y
L
TM
LI REE
F
TEBIS Room Controller
Groups four push buttons and LCD
Home Comfort display screen
Solution • Push buttons
Time Switch
Two channel time switch with
Tebis is an elite solution for easy 4 sides of product act as
communication feature
control of electrical devices such as sensitive push buttons for
• For comfort of time based
lights, dimmers, motorized shutters, various controls
switching and energy saving
blinds, heaters coolers etc. All Tebis • Freely and independently
• Tr a n s m i s s i o n o f c o n t r o l
components comply with KNX programmable
command directly on EIB bus
standard. These components • Display
• Can be programmed for any or
communicate over twisted pair (TP) Indication of status of inputs
all week days with 56 steps of
wire EIB cable. The Tebis system is connected and description of
programming
equally beneficial for both new control
• Facility of festival or holiday
installations as well as for existing • Display of date, time, alarm,
setting
ones undergoing refurbishment. local temperature
• Provision of automatic change of
Components of Tebis system schedule for summer / winter
• Input modules and sensors • Programming possible locally or
• Output modules light control, with the help of programming key
dimming control, shutter control
20

26. Complete Range of Electrical Standard Products
B IS:FE
TEVE LI LY TM
LI E RE
F
Weather Controller
For control output loads by
monitoring various weather related
parameters such as rain, wind,
inside and outside temperature,
light, etc.
Presence Detector
Used for automatic lighting or
cooling control based on
occupancy
• Detection based on movement
as well as presence with two
lenses
• Covers large area of detection
upto 1 8 m x 9 m depending on
installation height
• Available in two versions
2 channel detector with
ON / OFF control
• 1 channel lighting regulation Telephone Module
• Turn off delay adjustable • Controls up to 3 loads over any
up to 1 hour landline or mobile telephone Sensors
• Application; corridors, offices, • Voice guide in english Various sensors such as wind
cabins, conference rooms, • Password protected operation gauge, temperature probe, light and
class rooms • Status indication for each load rain sensor monitor weather
• Possible to operate the loads parameters and weather send it to
manually controller for controlling loads
21

27. AR G
ES SBKIN
W IR BUUN EM
TR YS T
• Wires for industrial, commercial
and domestic applications
S
• Voltage grade up to 1100 V
• Conforms to IS 694-1990 standards
• Complete safety ensured Busbar Trunking System
• Insulation types available for all wires L&T Megaduct
are:-Flame Retardant (FR), • Current Rating: 100 A to 6000 A
Flame Retardant Low Smoke (FRLS), • System Voltage: 600 V up to max. of
Zero Halogen Flame Retardant 1000 V
(ZHFR) and Heat Resistant (HR) • Conductor material : High conductivity
Flat Cables Cu / AI
• These cables are rigid and • Ingress Protection of IP66 / IP54 / IP42
withstand all adverse conditions • Configuration of 3P3W / 3P4W / 3 P 5 W
• Made of bright plain multi-stand with or without integral earth
annealed copper conductors • Halogen free, fire retardant Class - H -
• Available in 100 meter coils and Epoxy insulation
drums of 500 and 1000 meters • High temperatures withstand capability
• Range 1.5 sq.mm to 70 sq.mm of 55 degree over 50 degree celsius as
normal operating temperature Single
Flexible Wires Bolt bridge joint system incorporates
• Single and multi-core wires are 5mm thermal expansion provision
available • Tap - off units are provided for MCCBs
• Suitable for industrial wiring or SDFs or MCBs
applications • Sandwich construction results in lower
• Available in standard length of 100 mV drops, hence higher efficiency
meters coil distribution system
• Range 0.5 sq.mm to 1000 sq.mm • Available as feeder for power
House Wires transmission and plug-in for power
• Made of annealed copper conductor distribution
• Conforms to IS 8130-1984 standards • Standard lengths of 3M / 2M / 1M up to
• The insulation used is FR PVC 0.45M
compound for additional safety • Excellent short circuit ratings (up to
• Twin coating for superior insulation 100 kA)
• Range 0.75 sq.mm to 25 sq.mm • System primarily consists of
components such as Straight Length,
End Flange, End Feed Unit, Tap of
Units, Bends, Fixing clips, etc

28. Electrical Standard Products (ESP) Branch Offices:
REGISTERED OFFICE AND L&T House, Group MIG - 5 Plot No. 518
HEAD OFFICE Padmanabhpur 4th Main Road
L&T House, Ballard Estate Durg 491 001 K. K. Nagar
P. O. Box 278 Tel: 0788-2213833 / 14 / 28 / 29 Madurai 625 020
Mumbai 400 001 Fax: 0788-2213820 Tel: 0452-2537404, 2521068
Tel: 022-6752 5656 Fax: 0452-2537552
Fax: 022-6752 5858 A1/11, Astronauts Avenue e-mail: esp-mdu@LNTEBG.com
Website: www.Larsentoubro.com Bidhan Nagar
Durgapur 713 212 EBG North Wing Office - 2
Tel: 0343-2536891 / 8952 / 7844 Powai Campus
ELECTRICAL STANDARD PRODUCTS (ESP) Fax: 0343-2536493 Mumbai 400 072
501, Sakar Complex I e-mail: esp-dgp@LNTEBG.com Tel: 022-67052874 / 2737 / 1156
Opp. Gandhigram Rly. Station Fax: 022-67051112
Ashram Road Milanpur Road, Bamuni Maidan e-mail: esp-bom@LNTEBG.com
Ahmedabad 380 009 Guwahati 781 021
Tel: 079-66304007-11 Tel: 0361-2651297 8B, Farmland
Fax: 079-26580491 Fax: 0361-2551308 Ramdaspeth
e-mail: esp-ahm@LNTEBG.com e-mail: esp-gau@LNTEBG.com Behind Hotel Radhika
Nagpur 440 010
38, Cubbon Road, Post Box 5098 II Floor, Vasantha Chambers Tel: 0712-2420641 / 24
Bangalore 560 001 5-10- 173, Fateh Maidan Road Fax: 0712-2420619
Tel: 080-25020100, 25593613 Hyderabad 500004 e-mail: esp-ngp@LNTEBG.com
Fax: 080-25580525 Tel: 040-66720250
e-mail: esp-blr@LNTEBG.com Fax: 040-23296468 32, Shivaji Marg
e-mail: esp-hyd@LNTEBG.com P. O. Box 6223
New Delhi 110 015
131/1, Zone II
Tel: 011-41419500 / 1, 41419515
Maharana Pratap Nagar D-24, Prithvi Raj Road, C-Scheme
Fax: 011-41419600
Bhopal 462 011 Jaipur 302 001
e-mail: esp-del@LNTEBG.com
Tel: 0755-4233906, 4233907 Tel: 0141-2385913 / 19
Fax: 0755-2769264 Fax: 0141-2373280 L&T House
e-mail: esp-bho@LNTEBG.com e-mail: esp-jai@LNTEBG.com P. O. Box 119
191/1, Dhole Patil Road
Plot No. 559, Annapurna Complex Akashdeep Plaza, 2nd Floor Pune 411 001
Lewis Road P. O. Golmuri Tel: 020-26135048, 26135611
Bhubaneswar 751 014 Jamshedpur 831 003 Fax: 020-26129586, 26124910
Tel: 0674-6451342, 2436696 Jharkhand e-mail: esp-pnq@LNTEBG.com
Fax: 0674-2537309 Tel: 0657-2340864
e-mail: esp-bbi@LNTEBG.com Fax: 0657-2341250 3rd Floor
e-mail: esp-jam@LNTEBG.com Vishwakarma Chambers
SCO 32, Sector 26-D Majura Gate, Ring Road
Madhya Marg, P. O. Box 14 Skybright Bldg. M. G. Road Surat 395 002
Chandigarh 160 026 Ravipuram Junction, Ernakulam Tel: 0261-2473726
Tel: 0172-4646841 to 7 Kochi 682 016 Fax: 0261-2477078
Fax: 0172-4646802 Tel: 0484-4409420 / 427 e-mail: esp-sur@LNTEBG.com
e-mail: esp-chd@LNTEBG.com Fax: 0484-4409426
e-mail: esp-cok@LNTEBG.com Radhadaya Complex
10, Club House Road Old Padra Road
Chennai 600 002 3-B, Shakespeare Sarani Near Charotar Society
Tel: 044-28462072 / 4 / 5 Kolkata 700 071 Vadodara 390 015
Fax: 044-28462102 Tel: 033-44002572 / 3 / 4 Tel: 0265-6613610 / 11 / 12
e-mail: esp-maa@LNTEBG.com Fax: 033-22822589 Fax: 0265-2336184
e-mail: esp-ccu@LNTEBG.com e-mail: esp-bar@LNTEBG.com
67, Appuswamy Road
Post Bag 7156 A28,Indira Nagar, Faizabad Road 48-8-16, Dwarakanagar
Opp. Nirmala College Uttar Pradesh, Visakhapatnam 530 016
Coimbatore 641 045 Lucknow 226 016 Tel: 0891-6620411-4
Tel: 0422-2588120 / 1 / 5 Tel: 0522-2312904 / 5 / 6 Fax: 0891-6620416
Fax: 0422-2588148 Fax: 0522-2311671 e-mail: esp-viz@LNTEBG.com
e-mail: esp-cbe@LNTEBG.com e-mail: esp-Lko@LNTEBG.com
Product improvement is a continuous process. For the latest information and special applications, please contact any of our offices listed here.
Electrical Standard Products
Larsen & Toubro Limited
Powai Campus, Mumbai 400 072
Tel: 022-6705 0505
Fax: 022-6705 1746
E-mail: ebg-esp@LNTEBG.com
Website: www.LNTEBG.com
SP 50401 230908