ETP48400-C9A2 Embedded Power
User Manual
A Technical Specifications
Issue 05 (2020-04-07)
Copyright © Huawei Technologies Co., Ltd.
75
A
Technical Specifications
Table A-1
Environment conditions
Item
Specifications
Operating temperature
–40°C to +65°C
Transport temperature
–40°C to +70°C
Storage temperature
–40°C to +70°C
Operating humidity
5%–95% RH (non-condensing)
Storage humidity
5%–95% RH (non-condensing)
Altitude
0 m to 4000 m
(When the altitude ranges from 2000 m to 4000 m, the operating
temperature decreases by 1°C for each additional 200 m.)
Table A-2
Electrical specifications
Item
Specifications
AC input
Input system
220/380 V AC, three-phase
Input frequency
45–66 Hz (rated frequency: 50 Hz
or 60 Hz)
Power factor (PF)
≥ 0.99 (rated input, with 100%
loads)
DC output
Output voltage range
–42 V DC to –58 V DC
Default output voltage
–53.5 V DC
Maximum output power
24000 W (supports N+1 backup;
maximum total output current
does not exceed 400 A; and
long-term operating current output
does not exceed 350 A).
Regulated voltage precision
≤ ±1% (The output voltage is
