This Cooper Lighting Greengate Heavy-duty switch pack operates at a input voltage rating of 120/277 Volts. It provides a output voltage rating of 15 VDC to all low voltage, 15 VDC, occupancy sensors and day lighting controllers. It is capable of switching up to a current rating of 20 Amps. A single switchpack can allow power for up to five sensors. Multiple circuits can be controlled by connecting a sensor with ten switchpacks. It is compatible with greengate sensors. Heavy Duty Switchpack shall be used to control high inrush electronic ballasts. Switchpacks are rated for ballast, tungsten and motor loads. You can control HVAC, contactors, motors using isolated contacts. It features Zero-crossing circuit that provides increased durability, especially with todays high inrush loads. It measures 2-7/16 Inch x 1-11/16 Inch x 2-15/16 Inch. It is suitable for plenum use. Switchpack is housed with ABS resin material that complies with UL94V0 standards