Emerson Liebert NXC - 9.8 Efficiency, Heat Losses and Air Exchange

User Manual 10H52188UM60 - Rev. 2 - 09/2012 63
Liebert NXC Product Specifications
9.8 Efficiency, Heat Losses and Air Exchange
Table 9-8 Efficiency, Heat Losses and Air Exchange
Item Unit
Rated power (kVA)
10 15 20
Overall efficiency
Normal mode
(double-conversion)
100% load % 94.2 94.1 94.0
66% load % 93.9 94.2 94.5
33% load % 91.3 93.7 93.9
ECO Mode % 98
Battery mode % 92.5 92.8 93
Heat losses & air exchange
Normal mode kW 0.55 0.84 1.15
Eco mode kW 0.18 0.28 0.37
No load kW 0.24
Maximum forced air cooling
(front intake, rear exhaust)
L/sec 208
Note: 400Vac input and output, battery fully charged, full-rated linear load