Item
Parameter Name
Description
Voltage range
85–420 V DC
DC output
Output voltage range
–42 V DC to –58 V DC
Default output voltage
–53.5 V DC
Maximum output power
4000 W
Regulated voltage
precision
≤ ±1%
Peak-peak noise voltage
≤ 200 mV
Unbalance of load sharing ≤ ±5% (50%–100% load)
AC input
protection
AC input overvoltage
protection threshold
> 300 V AC
AC input overvoltage
recovery threshold
When the voltage is restored to 290 V AC, the
output restores.
AC input undervoltage
protection threshold
< 80 V AC
AC input undervoltage
recovery threshold
When the voltage is restored to 85 V AC, the
output restores.
DC input
protection
DC input overvoltage
protection threshold
> 420 V DC
DC input overvoltage
recovery threshold
When the voltage is restored to 414 V DC, the
output restores.
DC output
protection
DC output overvoltage
protection threshold
Range: 56–60 V DC
EMC specifications Conducted emission
Input ports: CISPR 22/EN 55032 Class B (AC
input); Class A
1
(DC input)
Output ports: CISPR 22/EN 55032 Class A
Radiated interference
CISPR 22/EN 55032 Class B
Harmonic
IEC 61000-3-2/12
Fluctuation and flicker
IEC 61000-3-3/11
Electrostatic discharge
(ESD)
Enclosure port: contact discharge 6 kV, air
discharge 8 kV (criterion B); contact discharge 8
kV, air discharge 15 kV (criterion R); signal port:
contact discharge 2 kV (criterion R)
Electrical fast transient
(EFT)
Signal port: 1 kV; power port: 2 kV (criterion B)
Radiated susceptibility
(RS)
10 V/m field strength (criterion A)
ETP4860-B1A2 Embedded Power
User Manual
A Technical Specifications
Issue 04 (2021-01-05)
Copyright © Huawei Technologies Co., Ltd.
84
