Emerson 10-30kVA Manuel D’Utilisation

Rated voltage, VAC

120/208

Supply

3-phase, 4-wire plus ground

Frequency, Hz

 50 / 60

Rated Power, kW

8

12

16

24

Three -phase transient overload,
min. load

10 minutes - 105-125% load

1 minute - 126-150% load

Voltage Regulation %

±1.0% three-phase RMS average for a balanced three-phase load

±2.0% three-phase RMS average for a 100% unbalanced load

Frequency Regulation %

Nominal frequency regulation is ±0.05% in single module mode,
and+/- 0.25% in parallel mode.

Maximum rate of change of 
frequency, Hz/sec

For single mode, the slew rate is adjustable from 0.1Hz/s to 3Hz/s

Current rating of neutral cable, A

1.5 x input current

Rated voltage, VAC

120/208

Supply

Three-phase, 4-wire plus ground

Rated Current, A

208VAC

28

42

56

83

Bypass voltage tolerance %

Upper limit: +10%, +15% or +20%

Lower limit: -10%, -20%, -30% or -40%

Upper limit default: +15%
Lower limit default: -20%

Frequency, Hz

50 / 60

Input frequency tolerance %

± 10 or ± 20%; default ±10%

Current rating of neutral cable, A

1.5 x input current

Bypass overload capacity
(all ratings)

Long-term operation:

10 minutes:

100milliseconds:

Load
<135% load
135% - 170% load
1000% full UPS rated output current