APC Power Supply Power Supply User Manual


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36 InfraStruXure Site Planning, Installation, Start-Up
How to Ensure Total Power Off
1. Open (turn OFF) the main circuit breaker
on the power source feeding the PDU.
2. Open (turn OFF) the main input switch on
the PDU.
3. Set the Main Output circuit breaker on the
front of the PDU to OFF.
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