Greengate 20 Amp 120/277-Volt Heavy-Duty Switchpack Compatible with Magnetic/Electronic Ballasts

The switch pack has two main components: a transformer and one high current relay. The transformer has a primary line voltage input and a secondary low voltage output. The low voltage output, 15VDC, provides operating power to connected low voltage Green gate occupancy sensors. When an occupancy sensor detects motion, it electrically closes an internal circuit, pulling up the control signal between the sensor and the switch pack. This signals the switch pack to close its high current relay, turning the connected load on.