Huawei UPS2000-G-6KRTLL Quick Manual page 5

2. Install battery cables.
After lithium batteries are connected in parallel, connect signal cables to the BMS ports on
the UPS. Install a build-out resistor at the COM-OUT port on the last lithium battery.
1. The UPS2000-G-6KRTLL needs to connect to external lithium batteries ESM-48100B1 or
ESM-48150B1. Each UPS supports a maximum of 16 batteries connected in parallel. This
document uses four lithium batteries connected in parallel as an example.
2. When lithium batteries are connected, it is recommended that a DC circuit breaker (150 A 80
V DC circuit breaker for the 6 kVA UPS) be installed between the lithium batteries and the
UPS.
3. Before connecting cables to the UPS, ensure that the battery circuit breakers are OFF to
prevent operations with power applied.
4. If the UPS shares a battery string, the PE bar and battery busbar are configured.
Recommended power cable specifications
Wiring Terminal
External Circuit Breaker
Cable Cross-sectional Area
Terminal Type
Torque for Tightening Bolts
Installing battery cables (rack-mounted, front view)
（1）UPS rear view
Battery (BATT. 48VDC)
125 A (type D)
25 mm²
2
OT-25 mm -M8 terminal
7 N· m
（2）Busbar
5