American Power Conversion InfraStruXureTM System manual Route and Attach Overhead Wiring

Route and Attach Overhead Wiring

Connect the sub-feed power cable conductors to a three-pole breaker on the PDU

Electrical Hazard

Only licensed electricians or APC Field Service Engineers can connect the sub- feed power cable conductors to a breaker on the PDU. Ensure that the RDP breakers are OFF before beginning this procedure.

The sub-feed power cable is connected to the RDP and the cable’s wires are terminated with ferrules.

If you ordered the alternative connection, your PDU and RDP have sub-feed power cables that terminate with IEC 309 connectors. If you have this option, the procedure

Note below does not apply.

To connect the sub-feed power cable to the PDU:

1.Route the sub-feed power cable from the RDP to the PDU through the Shielding Troughs.

2.Route each phase conductor (L1, L2, L3) through a current sensor (secured to the PDU enclosure) and secure the current sensor to each conductor using a wire tie (provided).

3.Connect the power cable’s individual wires (see the illustration):

a.Connect each phase conductor (L1, L2, L3) to the appropriate pole on one of the three-pole breakers (sub-feed breakers) at the bottom of the panel.

b.Connect the neutral wire to a termination point on the Neutral Bar (N) at the top of the distribution panel.

c.Connect the ground wire to a ground lug

(G) at the bottom of the distribution panel.

N

G

42 InfraStruXure System—Installation and Start-Up