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The MARS mars-91331 is a definite purpose contactor rated for 24-volt coil operation, designed for use in motor-load switching applications common to HVAC and refrigeration systems. Definite purpose contactors are built to handle the repetitive switching demands of compressors, condenser fan motors, and similar inductive loads. This contactor is installed by licensed HVAC technicians and refrigeration mechanics as part of electrical control circuit assemblies in both residential and light commercial equipment.
This contactor is suited for residential and light commercial HVAC applications where a 24-volt control signal is used to energize the coil and switch load-side circuits. Typical installations include split-system air conditioners, heat pumps, and refrigeration condensing units where reliable, low-voltage-actuated load switching is required.
Designed as an OEM-style replacement definite purpose contactor for residential and light commercial HVAC and refrigeration systems requiring a 24-volt coil contactor.
Installation should be performed by a licensed HVAC technician or qualified electrician. Disconnect and lock out all power to the unit before removing the existing contactor or making any wiring connections. Verify coil voltage and load ratings match system requirements before energizing. Work should comply with applicable NEC requirements and local electrical codes.
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