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11.7 Electrical Characteristics (Bypass Mains Input)
Item
Rated AC voltage
Rated current
Overload
Upstream protection, bypass
line
Current rating of neutral cable
Frequency
2
Transfer time (between
bypass and inverter)
Bypass voltage tolerance
Bypass frequency tolerance
Synchronisation window
1. Factory set to 400V. 380V or 415V can be selected by commissioning engineer.
2. Factory set to 50Hz. 60Hz can be selected by commissioning engineer. Bypass condition ignored when UPS set as
frequency converter.
11.8 Efficiency, Heat Losses And Air Exchange
Normal mode (double conversion)
ECO mode
Inverter efficiency (DC/AC) (battery at nominal voltage 432Vdc and full-rated linear load)
Battery mode
Normal mode
ECO mode
No load
Maximum forced air cooling (front intake, back
exhaust)
Input and output voltage 400Vac, battery fully charged, full rated linear load.
Liebert APM 150 Integrated UPS Single Module And Parallel System
Table 11-7 Bypass mains input
Unit
380/400/415, three-phase four-wire, sharing neutral with the rectifier input
Vac
1
and providing neutral reference to the output
225, 380V
A
215, 400V
205, 415V
110% long term
%
170% for 10min
1000% for 100ms
Thermomagnetic circuit breaker, rated up to 125% of nominal output
N/A
current. IEC 60947-2 curve C
1.7 × In
A
Hz
50/60
Synchronous transfer: ≤1ms
ms
Asynchronous transfer (default): 15ms (50Hz), 13.3ms (60Hz)
Or 40ms, 60ms, 80ms, 100ms selectable
Upper limit: +10, +15 or +20, default: +15
%Vac
Lower limit: -10, -20, -30 or -40, default: -20
(delay time to accept steady bypass voltage: 10s)
±2.5, ±5, ±10 or ±20, default: ±10
%
Rated frequency: ±2Hz (selectable from ±0.5Hz to ±3Hz)
Hz
Table 11-8 Efficiency, heat losses and air exchange
Item
Unit
30
Overall efficiency
%
%
%
Heat losses and air exchange
kW
1.2
2.4
kW
0.6
1.2
kW
0.6
1.2
L/s
96
192
Chapter 11 Specifications
Rated power (kVA)
30 ~ 120
Rated power (kVA)
120 (with redundant
60
90
120
96
98
96
3.6
4.8
1.8
2.4
1.8
2.4
288
384
User Manual
83
power module)
6
3
3
480
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