3.5 Installing Cables for a Single UPS
Install the AC input and output power cables.
1. Switch off the upstream AC circuit breaker for the UPS.
2. Remove the AC input and output terminal cover from the UPS.
3. Install AC output power cables and then AC input power cables in sequence.
Figure 3-4 AC input and output wiring diagram
Installing 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.
NO TE
● The UPS2000-G-6KRTLL needs to connect to external lithium batteries. Each UPS
supports a maximum of eight batteries connected in parallel. This document uses four
lithium batteries connected in parallel as an example.
● If the UPS connects to only one lithium battery, the maximum load power is 4.3 kW.
● 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.
● Before connecting cables to the UPS, ensure that the battery circuit breakers are OFF to
prevent operations with power applied.
● If the UPS shares a battery string, the PE bar and battery busbar are configured.
● If the busbar terminals are insufficient, you can cascade busbars.
● Busbar dimensions (H x W x D): 84 mm x 475 mm x 70 mm
UPS2000-G-6KRTLL
User Manual
3 Installation
Issue 01 (2020-08-06)
Copyright © Huawei Technologies Co., Ltd.
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