1. Liebert® NXC 10-200 kVA
Compact Reliable Power
AC Power Product Marketing, EMEA
2. Liebert® NXC – Key Drivers
• Section 1: Product ID Card
• Section 2: Product Overview
• Section 3: TCO
• Section 4: Serviceability
• Section 5: System Configuration
• Section 6: Connectivity and Monitoring
Reliable and flexible secure power in a fully integrated
package solution.
3. Product ID Card
• Available in 10-15-20 kVA ratings (3/3 or
3/1 configurations) and 30-40-60 kVA (3/3)
• 0.9 output power factor
• THDi < 4%
• Double conversion efficiency up to 95,5%
• Eco mode efficiency above 98%
• Battery charger power up to 7,5 kW
• Integrated parallel capability
• Integrated load bus synchronization (LBS)
• Integrated isolation transformer option
Liebert® NXC 10-60 kVA
4. Product ID Card
• Available in 80-100-120-160-200 kVA ratings (3/3)
• Output power factor up to 1 (up to 30°C)
• THDi < 3%
• Double conversion efficiency up to 96%
• Eco mode efficiency above 99% (also for parallel
mode)
• Battery charger power 12-18-24-30 kW
• Bottom cable entry
• Integrated parallel capability up to 4 units
• Integrated load bus synchronization (LBS)
• Integrated isolation transformer option (80-120kVA)
Liebert® NXC 80-200 kVA
160-200 kVA
80-120 kVA
6. Liebert® NXC 10-20 kVA
Dimensions and Integrated Run Times
Weight without battery: 115kg
Weight
Liebert NXC
10 kVA
Liebert NXC
15 kVA
Liebert NXC
20 kVA
1x32x9Ah 208kg 208kg 208kg
2x32x9Ah 301kg 301kg 301kg
3x32x9Ah 394kg 394kg 394kg
4x32x9Ah 487kg 487kg 487kg
Battery Config.
Liebert NXC 10
kVA
Liebert NXC
15 kVA
Liebert NXC
20 kVA
1x32x9Ah 9min 5 min -
2x32x9Ah 23 min 14 min 9 min
3x32x9Ah 38 min 23 min 16 min
4x32x9Ah 55 min 34 min 23 min
1x32x9Ah
2x32x9Ah
3x32x9Ah
4x32xAh
Battery String
weight: 93kg
860
500
950
200
Dimensions in mm
1240
All run times are at full load and 0,9PF
7. Battery Config. Liebert NXC 30 kVA Liebert NXC 40 kVA
1x32x34Ah 14 min 9 min
1x40x34Ah 19 min 12 min
Weight without battery: 210kg
Weight Liebert NXC 30 kVA Liebert NXC 40 kVA
1x32x34Ah 602kg 602kg
1x40x34Ah 700kg 700kg
Liebert® NXC 30-40 kVA
Dimensions and Integrated Run Times
1x32x34Ah
1x40x34Ah
1600
850
600
950
200
All run times are at full load and 0,9PF
8. Battery Config. Liebert NXC 60 kVA
1x32x34 Ah 5 min
1x40x34 Ah 7 min
Weight without battery: 235 kg
Weight Liebert NXC 60 kVA
1x32x34 Ah 620 kg
1x40x34 Ah 715 kg
Liebert® NXC 60 kVA
Dimensions and Integrated Run Times
All run times are at full load and 0,9PF
9. Liebert NXC 80-120 kVA Liebert NXC 160-200 kVA
Liebert® NXC 80-200 kVA
Dimensions and Weight
2000
1600
600 1000
Configuration Weight
80 kVA 385 kg
100 kVA 430 kg
120 kVA 430 kg
160 kVA 475 kg
200 kVA 520 kg
600 1000
500 500
10. Liebert® NXC: Charging Capacity
In this case the capacity is 4*9Ah=36Ah and
Liebert NXC can deliver the 0,25C=9A max
charging current recommended by battery
manufacturer
• A UPS with 7A of charging current will charge the
battery in more that 6 hours
• A UPS with 5A of charging current will charge the
battery in more that 8 hours
• A UPS with 4A of charging current (i.e. < than
0.1C) will not be able to charge the battery
Battery
Config.
Liebert NXC
10 kVA
0.25C
Recharge
time 80%
4x32x9Ah 55 min 9A <4h
Rating (kVA) 10-20 30-40 60 80 100-120 160 200
Max charging
power (kW)
4.5 6 7.5 12 18 24 30
Max charging
current (A)*
11 14 18 28 43 57 71
*calculated considering the minimum number of battery cells
11. Liebert® NXC 10-20 kVA: Terminal Blocks,
Breakers and Output Configuration
Liebert NXC can easily be configured to deliver 3/1 output through
the use of jumpers and modifications to software settings.
3/3
3/1
OUTPUT MAINT.
BYPASS
BYPASS
INPUT
MAINS
INPUT
Batt. Fuses
Main and
Bypass
Input Link
Circuit Breakers
Switch
12. 10-20 kVA: 3/3 Common Bypass Configuration
STS
Rectifier Inverter
UPS
output
Q3
Neutral To internal battery
Q2
Q1 Q5
Mains input
Bypass
input
Removable Links
To external battery
10-20 kVA: 3/1 Common Bypass Configuration
STS
Rectifier Inverter
Q3
Neutral To internal battery
Q2
Q1 Q5
Mains input
Removable Links
UPS
output
To external battery
Liebert® NXC 10-20 kVA
3/3 and 3/1 configurations
13. STS
Rectifier Inverter
UPS
output
Q3
Neutral To internal battery
Q2
Q1 Q5
Mains input
Bypass
input
To external battery
10-20 kVA: 3/3 Common Bypass Configuration
STS
Rectifier Inverter
Q3
Neutral To internal battery
Q2
Q1 Q5
Mains input
UPS
output
To external battery
10-20 kVA: 3/1 Common Bypass Configuration
Liebert® NXC 10-20 kVA
3/3 and 3/1 configurations
17. Liebert® NXC 60 kVA
Terminal Blocks & Switches
Main input
switch
Copper
terminals
DC Fuses
Maintenance switch
Output
switch
Bypass
input
switch
Neutral
switch
Insulating
sheet
PE Copper
bar
The full frontal access to switches and terminal
blocks facilitates all service operations and allows
installation also in space constrained situations
18. Liebert® NXC 80-120 kVA
Terminal Blocks & Switches
• Liebert NXC 80-120 kVA comes with
maintenance switch only
• Liebert NXC 80 kVA version has a version
with input/output/bypass switches
• Battery connection with «+», «N» and «-»
terminals
Liebert NXC 120 kVA
Maintenance Bypass Switch Only
19. Liebert® NXC 160-200 kVA
Terminal Blocks & Switches
Maitenance
• Liebert NXC 160-200 kVA comes
with maintenance switch only
• Battery connection with «+», «N»
and «-» terminals
Liebert NXC 200 kVA
Maintenance Bypass Switch Only
20. Liebert® NXC: Switch Table
kVA Input (Q1)
Static
Bypass (Q2)
Maintenance
Bypass (Q3)
Output (Q5) Battery (Q6)
10
15
20
30
40
60
80 * * *
100
120
160
200
* Liebert NXC 80 kVA is available in both ‘Value’ and ‘Full’ switch configurations
22. Liebert® NXC
Three Level Converter Topology
Two level switching PWM
Three level switching PWM
Liebert NXC makes use of three level vector
controlled converters for:
Increased efficiency:
• Energy losses are minimized in proportion to the
voltage gap
Increased reliability:
• Low voltage stress on power switching
components
• More efficiency means less heat to dissipate
resulting in increased reliability
23. Double conversion efficiency of 96% delivers:
- High efficiency for partial loads
- Effective load protection
- TCO reduction
A further reduction of TCO and environmental impact can be achieved with
ECO mode operation efficiency exceeding 99%
OPEX: Liebert® NXC Efficiency Curve
Efficiency
Load
Liebert NXC 80-200 kVA
90.0%
91.0%
92.0%
93.0%
94.0%
95.0%
96.0%
97.0%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
24. CAPEX: Output Power Factor
AP
M
™
C
Competito
r
120 kVA @ 1.0 PF
120 kVA @ 0.8PF
0
20 kW
40 kW
60 kW
80 kW
100 kW
120 kW
Liebert® NXC is able to deliver 25% more active power than a
conventional UPS which has a PF of 0.8. As a result, Liebert NXC
avoids the need for system oversizing while delivering the same level
of power to the load.
Liebert NXC
Competitor
kW
kVA
25. OPEX: Battery Management
Ability to supply the full load
even for very low input
voltage allows Liebert NXC
to minimize battery
charging/discharging cycles
DC ripple current <5%C10
for the best battery care
Battery discharge test
(manual or programmed)
for accurate back up time
prediction
305
Output load % without switching to battery mode
55%
60%
65%
70%
75%
80%
85%
90%
95%
100%
105%
150 200 250 300 350 400 450
Input voltage (V)
Output
Load
With a dedicated temperature sensor
connected via the customized Intellislot card,
the float voltage supplied to the battery is
adjusted to ensure that battery voltage
decreases subsequent to temperature increase.
This prevents the battery being over charged at
high ambient temperatures, prolonging its
lifespan.
26. CAPEX: Battery Configurations
Liebert NXC allows a choice between the following battery
configurations:
• Dedicated battery bank - complete redundancy
• Common battery bank - cost and space optimization
Dedicated Battery Bank Common Battery Bank
Battery cabinet dimensions are the same as the UPS.
Further to being compatible with every battery string length between 30 and 40/44
blocks (even numbers), Liebert NXC is also compatible with the majority of
existing third party external battery bank solutions.
28. Liebert® NXC 10-20 kVA: Serviceability
Casters facilitate ease of movement and relocation.
All power and control devices are located on a single
sub-assembly for easy on-site replacement and
reduced MTTR.
Each shelf is individually isolated for safe
transportation and rapid maintenance
29. Casters facilitate ease of movement and relocation
All power and control devices are located on a single
sub-assembly for easy on-site replacement and
reduced MTTR
Liebert® NXC 30-40 kVA: Serviceability
Each battery shelf is individually isolated
for safe and rapid maintenance
Full front
access for
cabling,
battery fuse
replacement
and switch
operation
30. Liebert® NXC 60 kVA: Serviceability
Rectifier Module Inverter Module
Rec inductor
Rec IGBT
Module
DC bus
capacitors
INV inductor
INV IGBT & Driver
Module
3 auxiliary power boards, one of
them is redundant
Liebert NXC 60 kVA ensures an easy access to key
components and makes use of standardized,
modular assemblies and sub-assemblies that can
be quickly removed and swapped in case of need
31. Liebert NXC 80-200 kVA is designed to have all the
replaceable components accessible from the front
for both installation and maintenance purposes,
allowing to optimize the space requirement within the
customer room
Capacitor
boards
DSP
board
Battery
fuse
Power
Cell
DC and AC capacitors can be
replaced to ensure constant
optimal performances and
reliability
Each phase is made with
“power cells” that can be
individually replaced
IGBT and driver
boards are shielded
for higher reliability
Maitenance
Power
cells
Liebert NXC 200 kVA
Liebert® NXC 80-200 kVA: Serviceability
33. Liebert® NXC 10-40 kVA
Integrated Transformer Option
-Liebert NXC 10-20 kVA - Transformer
(“T”) version
Has space for one battery string
delivering approximately 9 min @9kW
- Liebert NXC 30-40 kVA
Transformer (“T”) version
34. Liebert® NXC 60 kVA: Flexibility
Bypass
load
sharing
inductor
Centrifugal Fan
Transformer
(1) (2)
Liebert NXC 60 kVA can be factory configured with internal battery (1) or with insulation
Transformer (2)
40x34 Ah
battery
blocks
Standard top cable entry
35. Parallel and Dual Bus Ready
The closed loop configuration eliminates the
possibility of a single point of failure.
Up to 4 Liebert
NXC units can
be connected
in parallel via a
communication
cable set.
Liebert NXC is
also Dual Bus
ready.
Parallel Connection
Dual BUS Connection
48. Emerson
Confidential
1. Emergency Power Off,
RS232 for service
2. Parallel and LBS (Load Bus
Synchronization)
3. BCB control and
monitoring, battery temp.
Compensation, Battery
ground fault detection
4. Q1, Q2, Q3, Q5 status and
interlock, generator mode
5. Backfeed signal (BFP)
6. Three Intellislots for IS-UNITY-
DP and IS-Relay cards
1 2 3 4 5
6
Liebert® NXC 80-200 kVA
Connectivity and Monitoring
49. Intellislots for:
• IS-RELAY for Dry Contact signaling
• IS-UNITY-DP for SNMP protocol,
MODBUS and LIFE™
Connectivity and Monitoring
50. LIFE™ Customer Values
Data trend analysis
24/7 alarm monitoring
Real time call in case of
emergency
Remote troubleshooting and
required parts identified before
going on-site
Remote diagnostic and preventive
monitoring service
Unit is fixed at the
first site visit (MTTR)
Reduce the risk of unexpected
downtime (MTBF)
Obtain the best possible
response time (MTTR)
51. LIFE™
Equipment Connection Options
• HTTP Client
• Reduced communication cost
LIFE™
Over IP
• Analogue phone line (can be
an internal PABX line)
• Dedicated line (i.e. not shared
with other phone apparatus)
PSTN
• Non-intrusive approach
• Solution when land line is
unavailable
GSM
53. The End
AC Power Product Marketing Team
Europe, Middle East & Africa
e-mail: ACpower.networkpower.emea@emerson.com
Contacts: AC Power Product Marketing Team
