NC3FD-S-1-B -- 3 pole female receptacle, D-size metal body, screw terminals accommodating wire range 0.14mm² to 0.5mm² (AWG 26 -20), black metal housing, gold contacts, UL recognized component NC3MD-S-1-B -- 3 pole male receptacle, D-size metal body, screw terminals accommodating wire range 0.14mm² to 0.5mm² (AWG 26 -20), black metal housing, gold contacts, UL recognized component