Definite purpose contactor is specifically designed for applications such as air-conditioning, refrigeration, resistive heating, data processing and food service equipment, pumps and compressors. A maximum of two auxiliary contact blocks (one on each side, four contacts maximum) can be field installed. Features include: UL tested for lighting loads. Compliant with international standards. Standard and high fault short-circuit current rating (SCCR). Feed-through wiring. Double-break contacts. Low coil VA with class B insulation (130..C) as standard. Snap-on auxiliary contacts. Ideal for: Air conditioners, compressors, welding equipment, vending machines, business machines, power supplies, refrigeration equipment, resistive heating and food service equipment.