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HVAC Contactor Cross-Reference

Find exact replacements for definite purpose contactors. Search by part number, OEM brand, or specifications.

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About HVAC Contactors

Contactors are electrically-controlled switches used to control the compressor and condenser fan motor in HVAC systems. Common failure symptoms include the outdoor unit not starting, intermittent operation, or a clicking sound from the contactor.

Common Specifications

  • 1-Pole: Single circuit control, typically for smaller units
  • 2-Pole: Most common for residential A/C and heat pumps
  • 3-Pole: Used in commercial and three-phase applications
  • 24V Coil: Standard for most residential HVAC systems
  • 120V/208-240V Coil: Used in commercial applications

Top Replacement Brands

MARS and JARD contactors are universal replacements that fit most OEM applications. When replacing, match the poles, coil voltage, and FLA rating.