Replacing An Mcb - Huawei PDU8000 Series User Manual

PDU8000 Modular Precision Power Distribution Cabinet
User Manual

8.5.3 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.
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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.
Figure 8-7 Removing the panel
Step 3 Remove cables connected to the left and right sides of the MCB, as shown in
Issue 02 (2016-11-10)
Tools: Phillips screwdriver, flat-head screwdriver, and key to the PDC cabinet door.
Materials: MCB of the appropriate model
When removing cables, label the cables with corresponding terminal ports for later connection.
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8 Maintenance Guide
Figure 8-8.
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