10 User Manual 10H52188UM51 - Rev. 1 - 09/2011
Product Introduction Liebert NXC
1.5.8 Maintenance Bypass Mode
If the maintenance and repair for UPS is needed, you can switch the load to the Maintenance Bypass through maintenance
bypass MCB, and the power to the load is uninterrupted. The maintenance bypass Miniature Circuit Breaker is located on the
rear panel of the UPS device, and the capacity meets the requirements of total load capacities.
Note
When the UPS has malfunctions and can not working normally, please get in touch with the nearest Emerson branch office or local
service centre. It is prohibited to repaire by yourself, otherwise the personnel injury and damage to the equipment will occur.
1.6 Specifications
The specifications are listed in Table 1-2.
Table 1-2 Specifications
Item
Specifications
LI6010… (10kVA) LI6015... (15kVA) LI6020… (20kVA)
Input
Rated voltage 380Vac/400Vac/415Vac; default 400Vac
Voltage range
304Vac ~ 478Vac, at full load
228Vac ~ 304Vac, linear derating
228Vac, at half load
Rated frequency 50Hz/60Hz; default 50Hz
Frequency range 40Hz ~ 70Hz
Power factor
≥
0.99, at full load;
≥
0.98, at half load
Output
Rated power 9kW 13.5kW 18kW
Voltage
3-in 3-out: 230Vac ± 1%, 3-phase balance load
3-in 1-out: 230Vac ± 1%
Frequency synchronization range Rated frequency ±8%Hz
Frequency track rate 0.6Hz/s (single UPS), 0.2Hz/s (parallel system)
Rated power factor 0.9
Crest factor 3:1
Voltage harmonic distortion < 2% (linear load), < 5% (non-linear load)
Dynamic response recovery time 60ms
Overload capacity
At 25°C: 105% ~ 125%, 5min
125% ~ 150%, 1min
Bypass voltage
Upper limit: +10%, +15% or +20%; default: +15%
Lower limit: -10%, -20%, -30% or -40%; default: -20%
Mains efficiency > 93%, up to 94%
Battery
Type Sealed, lead-acid, maintenance-free battery
Block(12V) No. Per positive and negative string: 30, 32, 34, 36, 38, 40; default: 32
Rated voltage 360Vdc ~ 480Vdc
Charge power
4.5kW, 0°C ~ 30°C
4.05kW, 30°C ~ 35°C
3.6kW, 35°C ~ 40°C
Adjust automatically according to the ambient temperature
Tra nsfer
time
Mains←→Battery
0ms
Inverter←→Bypass
Synchronous transfer:
≤
1ms
Asynchronous transfer (default):
≤
20ms
Or 40ms, 60ms, 80ms and 100ms are available
Noise
≤
58dB
Panel display mode LED and LCD
Safety IEC/EN 62040-1:2008
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