Crestron Commercial Lighting Design Guide | Green Light Power Switching |
GLS-PLS-
120/277 Power Loss Sensor
The
The
Testing the
The steel enclosure is designed for mounting to a vertical surface. Conduit knockouts are provided on the bottom, top, and both sides. All electrical connections are made via screw terminals accessed by removing the front panel.
Senses loss of power on each leg of a
Used to satisfy UL 924 (Emergency Power Equipment) requirements
Works with 120 or 277 Volt feeds
Designed to activate the Override mode on Crestron lighting modules
Provides two isolated contact closure outputs
Each output rated 1A @ 24VDC
Includes
Surface mount enclosure includes conduit knockouts
SPECIFICATIONS
Input Voltages
277V Voltage Range: 235 to 305 Volts AC, 50/60 Hz
120V Voltage Range: 102 to 132 Volts AC, 50/60 Hz
Connections
PHASE A, B, C: (3) Main feed sensing inputs, 277 or 120 Volts
OUTPUTS: (2) Form ‘A’ contact closures, electrically isolated. Both outputs close when main feed power is removed from any phase sensing input. Rated 1 Amp @ 24 Volts DC
Indicators & Controls
NORMAL A, B, C: (3) Green LEDs, each illuminates when corresponding test switch is
set to NORMAL and power is present at corresponding phase sensing input TEST A, B, C: (3) Red LEDs, each illuminates when corresponding test switch is set to TEST and power is present at corresponding phase sensing input
Test Switches: (3) Slide switches behind cover plate, used to set each corresponding phase sensing input to TEST mode
Enclosure
Galvanized steel with polycarbonate label overlay; surface mount with integral mounting flanges top and bottom; 3/4” & 1/2" conduit knockouts top, bottom, and both sides
Environmental
Temperature: 32° to 104°F (0° to 40°C)
Humidity: 10% to 90% RH
Heat Dissipation: 51 BTU/Hr
Dimensions
Height: 12.69 x 5.19 x 2.82 in (32.23 x 12.75 x 7.14 cm) HWD
Weight
3.7 lb (1.7 kg)
Doc 4775A | 29 |