The MP20 347 power/relay pack work swith low voltage occupancy sensors to switch lighting loads on and off. The MP20 347 also transforms 120 or 347 VAC single phase power to class II 15 VDC to power remote sensors. Although plenum rated, the elongated mounting nipple allows for these packs to be mounted either directly through a 1/2 inch knockout in a junction box, or to be located inside an adjacent box for specific local code requirements. Up to 14 sensors may be connected to one MP20 347. Multi-circuit control can be handled by multiple MP20 347. MP20 347s can be wired continuously hot (line side), or on the switch leg (load side) without nuisance delays upon turn on.FEATURES:• Powers Low Voltage Sensors (MP20 347)• Switches Line Voltage Loads• Plenum Rated