FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Step 9 Install the fuse terminal block to its original position.
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5.1.1.3 Replacing an MCB
Prerequisites
Before replacement, ensure that the input and output switches are OFF, and that the upstream
and downstream switches are also OFF.
Tools required: a Phillips screwdriver, flat-head screwdriver, and key to the PDC cabinet
door.
Materials: MCB of the appropriate model
Procedure
Step 1 Open the front door of the PDC, turn off the input and output switches in the PDC, and turn
off the upstream and downstream switches.
Step 2 Remove the screws from the PDC panel, set the screws aside, and remove the panel.
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