3-8 Connecting commercial power
AccessNode 323-3001-210 Issue 1.0
Procedure 3-2 (continued)
Wiring the ac load box as a branch circuit
Action
Step Action
1 Turn all circuit breakers in the ac load box to the OFF position.
2 Route the power and ground cabling from the external power source through
approved conduit into the 2-inch conduit the bottom of the ac compartment.
Note:
Reference local codes and NEC guidelines for branch circuit
installation requirements.
3 Punch out an appropriate sized knockout on the left side of the load box for
strain relief or conduit installation.
4 Route the wires into the load box through the appropriate strain relief or
conduit.
5 Connect wires to the main lug L1 and L2 terminators, GND, and NEUTRAL
located at the load box chassis assembly (see Figure 3-1).
6 Disconnect and remove the cabinet load box main bonding jumper.
Note:
The redundant main bonding jumper is not required per NEC with
external power pedestal or service disconnect.
7 Remove the neutral bonding screw in the cabinet ac load box panel.
8 Turn the commercial ac power feed to the ON position.
9 Use a voltmeter to verify power measurements listed in Table 3-4.
10 Reinstall all cover panels and tightly secure.
—continued—
CAUTION
Fire hazard
Remove all paper and any other combustible materials
from inside the cabinet before the cabinet is powered up.
Failure to comply with this warning could result in a fire.
Table 3-4
AC voltage verification
AC input If branch circuit If main service entrance
230 Vac L1 bar to L2 bar L1 to L2 on main breaker
115 Vac L1 bar to N bar L1 main breaker to neutral bar
115 Vac L2 bar to N bar L2 main breaker to neutral bar
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