check the terminals while the switch is in the 'ON' position

or a shorted compressor winding that increases current draw

monitoring the heat exchanger and plenum temperatures to protect the system from thermal damage

Visible moisture or steam escaping near the bellows base

MARS 61323 Contactor check the terminals while theFor service technicians requiring a reliable 277V switching solution, the MARS 61323 Contactor is a professional grade 1 pole definite purpose contactor designed for high cycle environments. This unit features a 30A inductive FLA rating (40A resistive) and is the direct replacement for C301NU50 and Furnas Centurion 2000 Class 45 series. Engineered for HVACR applications including refrigeration racks, commercial air conditioning, and electric heat, it