Warning, Description, Installation – Legrand PWP120277 User Manual
Page 2: Wiring
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DESCRIPTION
The PWP120277 power pack is the foundation for any low voltage lighting control
system. The PWP120277 supplies low voltage power to occupancy sensors and
other control devices, switching line voltage in response to signals from control
devices. The PWP120277 power pack is attached to existing junction boxes or
mounted into fixture wiring trays.
Low voltage wiring should use at least 22-gauge wire, high voltage connections
should use at least 14-gauge. Always check local building codes. After initial
wiring is complete, check wiring diagram to verify power pack is wired correctly.
Improper wiring can cause damage to power pack, lighting system, and
occupancy sensor.
INSTALLATION
WARNING
TURN POWER OFF AT CIRCUIT
BREAKER BEFORE INSTALLING
POWER PACKS.
WIRING
Low Voltage
Class 2
High
Voltage
Control Output
Common
+24VDC
Red
White
Neut.
PWP120277
Red
Black
Blue
Switch
(optional)
Lighting
Load
Black
Any 3-Wire
24VDC
Sensor
Line
Red
1. Make sure power has been turned off
at the circuit breaker.
2. Connect wires as shown in Fig. 1 or
Fig. 2.
Fig. 1: Single load control