
UPS5000-A-400 kVA
User Manual (50 kVA, PF=0.9)
2 Overview
Issue 03 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
36
Component
Model
Function
ECM extended
subrack
N/A
Install this subrack when the UPS is
equipped with a backfeed protection card
and dry contact extended card.
Dry contact
extended card
N/A
Provides extended monitoring ports: five
routes of relay output ports and five routes
of input ports.
Backfeed
protection card
N/A
Detects mains and bypass backfeed and
provides protection.
Battery monitor
unit (BMU)
N/A
Monitors battery voltages and
temperatures and battery string charge
and discharge currents.
Communicates with the UPS over
Modbus.
Battery
grounding
failure detector
N/A
Detects current leakage and generates
alarms. When equipped with a remote
trip switch, the detector protects devices
and prevents fire disasters.
Detects battery grounding failures and
generates alarms when the ground
leakage current exceeds the specified
value.
Ambient
temperature
and humidity
sensor
N/A
Ambient temperature and humidity
sampling board applicable to batteries.
Parallel cable
5 m, 10 m, or 15 m
Connects UPSs in parallel.
BSC cable
5m/10m/15m/60m
Transmits bus synchronization signals in a
dual-bus system.
The PDU8000-0400DCV8-BXA001 (BCB box) applies only to the UPS5000-A-400 kVA
The PDU8000-1250DCV8-BGA001 (battery bus bar [BBB] box) applies only to the UPS5000-A-
400 kVA