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Certified Electrician’s Instructions
4 40kW InfraStruXure PDU
Ensure Total Power Off
1. Open (turn OFF) the UPS DC Disconnect
circuit breaker and set the System Enable
switch to OFF.
2. If applicable, open (turn OFF) the XR Battery
Enclosure DC Disconnect circuit breaker.
3. Set the PDU Main Input switch to OFF.
4. Open (turn OFF) the Q1, Q2, and Q3 circuit
breakers on the PDU.
5. Set the upstream input Mains circuit breaker to
the OFF or Locked Out position.