OEM Carrier 2-Pole Contactor 40 Amp 24V Coil — HN52TC040 for Model TCHC0250HEFMRAF602

This is the genuine OEM Carrier contactor (part number HN52TC040), the factory-specified replacement for the Carrier TCHC0250HEFMRAF602 system. The contactor is a high-voltage relay that acts as the main electrical switch between your thermostat's 24V control signal and the high-voltage power feeding the compressor and condenser fan motor. When the thermostat calls for cooling, the 24V coil energizes and pulls in the contacts to complete the high-voltage circuit. When the contactor fails, the most common symptoms are an outdoor unit that won't start at all, a compressor that won't engage despite the thermostat calling for cooling, or visible pitting and burning on the contact points.

• Specs: 2-Pole | 40 FLA (Full Load Amps) | 24V 50/60Hz coil | OEM part number HN52TC040 — direct factory-matched replacement
• OEM vs Generic: This is a genuine Carrier OEM contactor, manufactured to exact factory tolerances. Generic contactors may use lower-grade contact materials that pit and weld prematurely, leading to compressor failure or stuck-on operation. OEM ensures correct coil resistance, contact rating, and terminal geometry for a true drop-in fit.
• Install difficulty: 2/5 — Shut off power at the disconnect and breaker before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removal. Transfer wires one at a time to the new contactor to avoid miswiring. Verify coil draws in fully when 24V is applied before closing the panel.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed as a direct OEM replacement for the Carrier TCHC0250HEFMRAF602. Verify your existing contactor's pole count (2-pole), amperage (40A), and coil voltage (24V) against your unit's data plate before ordering. Our fitment team is available to confirm compatibility prior to purchase — order with confidence and get your system back online today.