Leviton OSP20-DA0 20A Fluorescent/Incandescent, 120/220/277 Volt AC 60Hz, 1HP at 120VAC, 2HP at 240VAC, Power Pack for Occupancy Sensor, Black

From the Manufacturer

Containing both a 24VDC supply and a 20A line voltage relay for most models, the Leviton compact power pack provides low voltage power and line voltage control for Leviton Occupancy Sensors. Versions include Auto-ON and Manual-ON inputs for occupancy sensors, Hold-ON and Hold-OFF capabilities, and a local input for momentary or maintained dry contact switches. The internal relay can control up to 20A for a 120, 230, 277VAC or 347V ballast load and 20A for a 120VAC incandescent load. The OSP Power Pack Series is also used to supply power to the OSA Add-A-Relay model. The Power Pack conveniently mounts in a knockout hole of a standard junction box. The unit can be placed inside or outside the junction box with a simple twist-on nut. 20A fluorescent/incandescent, 120/220/277 Volt AC 60Hz, 1HP at 120VAC, 2HP at 240VAC, Power Pack for Occupancy Sensor, Made in USA.