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The MARS 61691 is a 480 volt replacement coil designed for use in 3 pole contactors commonly found in commercial and residential HVAC systems. MARS, short for Motors and Armatures, is a well-known supplier of HVAC replacement components trusted by technicians across the industry. This coil is a direct replacement part used to restore proper operation to a contactor when the original coil has burned out, shorted, or otherwise failed. Contactors are electromechanical switching devices that control the flow of power to major components such as compressors, condenser fans, and air handlers. The coil is the electromagnetic component inside the contactor that, when energized, pulls in the contacts to complete the power circuit. When a coil fails, the contactor will not pull in, and the connected equipment will not run. Replacing the coil rather than the entire contactor assembly is a cost-effective repair strategy used by experienced HVAC technicians. The MARS 61691 is rated for 480 volts, making it suitable for light commercial and commercial equipment operating on higher voltage three-phase or single-phase 480 volt circuits. The 3 pole configuration means this coil pairs with a contactor that switches three separate power lines simultaneously, as is common in three-phase compressor and motor applications. With a 50 amp rating, this coil handles the magnetic pull requirements for contactors switching larger loads. The UL Listed designation confirms that this part has been independently tested and meets recognized safety standards. HVAC technicians, refrigeration mechanics, and electrical contractors working on commercial rooftop units, chillers, and large split systems will find this a reliable replacement coil to keep in their service inventory.
The MARS 61691 provides a straightforward, UL Listed replacement coil solution for 480 volt 3 pole contactors, helping HVAC and electrical professionals restore equipment operation quickly without replacing the entire contactor assembly.
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