The MC-150A 500VAC 1A1B Contactor with 3 poles, NO x3 with Auxiliary contacts: NO + NC, 500VAC is manufactured by LS INDUSTRIAL SYSTEMS. It is a rugged, reliable, and efficient contactor with a wide range of applications. It features a large contact force of up to 2800 lb-in. and is UL Recognized, CSA certified, and UL1050 and UL508 listed. It is suitable for lighting, running motors, operating heating- and air conditioning equipment, as well as for capacitor switching. The contactor is designed with an ambient temperature range of -40°C to +85°C and can handle maximum surge current of 20kA. The MC-150A is designed with built-in protection including overload, short circuit, under voltage, and DC control coil overvoltage.