Installation Procedures: Ensure that All Power is Off

3.Set the Main Input (A) and Bypass Input (B) switches and the Cross Tie Input (X) circuit breaker (if applicable) on the PDU to the OFF position.

4. Open (turn OFF) the Q1, Q2, and Q3 circuit breakers on the PDU.

5. Set each upstream utility circuit breaker that will feed the PDU to OFF.

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InfraStruXure System—Installation and Start-Up

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American Power Conversion InfraStruXureTM System manual Installation Procedures Ensure that All Power is Off