Huawei UPS5000-E-30 kVA - Parts Replacement; Replacing an MCCB

8 Parts Replacement
8.1 Replacing an MCCB
This section describes how to replace an input circuit breaker. The procedures for
replacing the input circuit breaker, output circuit breaker, and maintenance bypass
circuit breaker of the UPS are similar. Replace them based on site requirements.
Prerequisites
D ANGER
Before replacing an AC switch, turn o the upstream input switch.
● The assisting tool, cabinet door key, insulation tape, and required tools are
available.
● The new switch is intact and has the same
specications as the original one.
UPS5000-E-(30 kVA–180 kVA)
User Manual (Integrated UPS) 8 Parts Replacement
Issue 02 (2022-12-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 156