Huawei PowerCube 5000 - Replacing a Circuit Breaker in ICC Cabinet

PowerCube 5000
User Manual (SmartLi 100Ah)
9 Parts Replacement
Issue 02 (2020-03-17)
Copyright © Huawei Technologies Co., Ltd.
128
Follow-up Procedure

Put the removed component into the ESD box or bag and then place the ESD box or bag
into the carton box with foams or the bag of the new component.

Fill in the fault card with the information about the removed component.

Contact your local Huawei office to handle the faulty component.
9.1.2 Replacing a Circuit Breaker
A circuit breaker needs to be replaced if it is faulty or at the end of its useful life.
Prerequisites

An ESD wrist strap or ESD gloves, Phillips screwdriver, ESD box or bag, and cabinet
door key are available.

You have confirmed the quantity and model of circuit breakers to be replaced and
prepared a replacement circuit breaker.

You are authorized to enter the site with the key.
Context
Before replacing a circuit breaker, ensure that the upstream power supply is disconnected.
Procedure
Step 1 Disconnect the power input to the circuit breaker to be replaced.
Step 2 Remove the cables or copper bars from the circuit breaker using a Phillips screwdriver, and
then insulate the cables or copper bars.
Step 3 Press the contact plate at the bottom of the circuit breaker using a flat-head screwdriver and
then remove the circuit breaker, as shown in the following figure.
Figure 9-4 Removing a circuit breaker