Function Devices Rib 208-277Vac 10Amp Enclosed Spdt Relay In A Box Ribh1C Relay In A Box (RIB) Contact Amp Rating (Resistive) 10A @ 277VAC, 10A @ 28VDC HP @ 120V 1/3 NO, 1/6 NC HP @ 240V 1/3 NO, 1/6 NC NEMA Enclosure Type 1