49-0121-10 Power Supply • 7
Wiring the Power Supply
1. Turn off or unplug power to the AC power source.
2. Open the power supply housing door.
3. Route three wires in conduit or a three wire cable with wires from the AC power source to the
power supply’s conduit hub.
4. Connect the three wires to the AC input terminals on the power supply as shown below using
either plain wire or #6 lugs.
Figure 4: Wiring AC Power to the Power Supply
AC Power
Source
N G
L
L N
-V -V +V +V
Note: T he ground terminal
has a factory-installed wire
connecting it to the
conduit hub's ground stud.
