Trane Definite Purpose Contactor HVAC Relay

Trane definite purpose contactors are electromechanical switches, also called contactor relays. They connect line-voltage power to the compressor and outdoor fan motor in a condensing unit whenever the thermostat calls for cooling. They are used in air conditioning and heat pump systems, and they act as the link between low-voltage control circuits and high-current loads.

Key Features:

• Built to Trane original-equipment specifications for dependable switching and long service life
• Low-voltage coil that works with standard HVAC thermostat and control board circuits
• Designed to handle the electrical demands of repeated, high-cycle operation
• Available in several pole configurations and amperage ratings to suit different equipment and circuit layouts
• Screw-terminal or quick-connect styles for secure wiring connections
• Suited to residential and light-commercial HVAC equipment

Pitted or burned contacts are a common reason a condensing unit fails to start. Replacing a worn contactor as part of routine seasonal maintenance helps keep the system running reliably. Choose the child option that matches your equipment's pole count, amperage rating and coil voltage.