Circuit Breaker
CAUTION:
Energy hazard, remove power before servicing. Disconnect two power supply
cords.
Circuit Breaker Removal
1. Do the “Power-Off Procedure with the Power Distribution Panel” on page 4-8.
2. Switch off power at the customer's -48 V DC power source to the power
distribution panel (PDP).
Note: Once the customer's -48 V DC power sources are switched off, ensure
that a tag or label is positioned over the switches to indicate that the
power source is intended to be switched off.
3. Ensure that the customer's technician properly disconnects both -48 V DC power
cables and both positive ground return cables from power distribution panel.
4. Remove the six mounting screws from the top cover of the PDP, and then
remove the top cover.
5. Remove the bus bar shield from the PDP.
6. Remove the bezel from the front of the PDP by removing the two mounting
screws.
Chapter 4. Removal and Replacement 4-17
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