Replacing An Mcb - Huawei PDU8000-0630ACV4-SCA108 User Manual

PDU8000 Precision PDC-T
User Manual
Step 9 Install the fuse terminal block to its original position.
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6.3.3 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.
Step 3 Remove cables connected to the left and right sides of the MCB.
Step 4 Push the black clip of the MCB outwards using a flat-head screwdriver. Then remove the
MCB along the inner side of the PDC, as shown in
Figure 6-4 Pushing the black clip
Step 5 Install a new MCB.
Step 6 Connect cables. The recommended cable hole for the MCB is shown by (1) in
Issue 01 (2017-07-15)
Tools: Phillips screwdriver, flat-head screwdriver, and key to the PDC cabinet door.
Material: MCB of the appropriate model
When removing cables, label the cables with corresponding terminal ports for later connection.
Mark the MCB to ensure correct reinstallation.
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6 Maintenance Guide
Figure 6-4.
Figure 6-5.
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