34001813EN/AE - Page 64
7. Appendices
The maximum allowable power for 4 parallel UPS units is limited to 4 x Pn.

Restrictions to parallel operation

(*) : except in ECO mode or bypass mode.
Thermal characteristics
The operating temperature range is 0°C to +40°C (0°C to 30°C for overload conditions), however optimum operation is within
the +20°C to +25°C range.
Battery backup time is adversely affected by high and low temperatures. It is significantly reduced at temperatures under
10°C.
Above 25°C, battery service life is cut in half every 10°C. Above 40°C, battery manufacturers no longer guarantee operation
due to the risk of thermal runaway.
.
Air enters through the bottom.
Air exits through the top.
Single UPS Parallel UPS
EMC level Category C3 Category C3
ECO mode Yes No
Frequency converter Yes Yes (for two UPSs)
Compatibility with the synchronisation module Yes Yes
UPS power rating Heat losses Recommended air
throughput
20 kVA 2.4 kW 1 332 m3/h
30 kVA 3 kW 1 332 m3/h
40 kVA 3.4 kW 1 332 m3/h
60 kVA 4.9 kW 1 332 m3/h
80 kVA 5.8 kW 2 556 m3/h
100 kVA 7 kW 2 556 m3/h
120 kVA 8.4 kW 2 556 m3/h