User's Manual

Chapter 3 Installation
3.15.3.2 HPA Cabinet AC Power Connection
The fo
llowing steps should be performed to make the electrical connection to the HPA cabinets
once the power cable has been routed into the cabinets and prepped by a certified electrician:
Place the circuit breaker in the building/site electrical service panel in the
OFF position and place a “DANGER-DO NOT TURN ON - Personnel
Working” sign on the circuit breaker.
1. Remove the access panel from the junction box by removing the two (2) Phillips head
screws – see Figure 3-60
.
2. Loosen the cable gland, located on the rear of the junction box, and insert the multi
conductor cable into the junction box.
3. Insert the green wire into the terminal block marked “GND” and tighten the clamping
screw – see Figure 3-61
.
4. Insert the white wire into the terminal block marked “L3” and tighten the clamping
screw – see Figure 3-61
.
5. Insert the red wire into the terminal block marked “L2” and tighten the clamping screw
– see Figure 3-61
.
6. Insert the black wire into the terminal block marked “L1” and tighten the clamping
screw – see Figure 3-61
.
7. Tighten the cable gland and replace the junction box access panel.
8. Verify that all PDU breakers are in the OFF position.
9. Verify that the circuit breaker in the building/site electrical service panel is still in the
OFF position and that the AC disconnect device is in the OFF position (where
applicable).
10. Place the circuit breaker in the building/site electrical service panel in the ON position
and remove the sign.
11. Place the AC disconnect device in the ON position (where applicable).
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