Wattstopper B120E-P 120Vac Occupancy Sensor Power Pack Supply 120VAC 24VDC

The WattStopper BZ50 Voltage Power Pack for occupancy sensors provide 24VDC operating voltage to all Watt Stopper 24VDC occupancy sensors and LightSaver controllers. Auxiliary relay packs are similar to power packs but have no transformer power supply, only an isolated relay.Power packs consist of a transformer and highcurrent relay combined in one small, powerful package. The transformer has a primary high voltage input and a secondary, low voltage output (24 VDC,114 mA with relay connected). The secondary voltage provides operating power to Watt Stopper sensors. When the occupancy sensors detect motion or light sensors detect inadequate ambient light, they electrically close an internal circuit which sends 24 VDC back to the power or auxiliary relay packs that control the lighting system.