OEM Carrier 2-Pole Contactor 40 Amp 24V Coil — HN52KD020 for Model PY1RJA060074AAWA

This OEM contactor (part number HN52KD020) is the factory-specified high-voltage switching relay for the Carrier PY1RJA060074AAWA packaged unit. The contactor acts as the primary electrical switch that closes when the thermostat calls for cooling, routing 240V power to the compressor and condenser fan motor. A failing contactor is one of the most common causes of an air conditioner that simply won't turn on — or one that hums loudly, trips the breaker repeatedly, or starts and stops erratically. Burned or pitted contacts are a telltale sign it's time to replace.

• Specs: 2-Pole | 40 Amp (50 Amp Resistive) | 24V coil voltage | Direct OEM replacement for HN52KD020 — also replaces HN52KD025, HN52KD025A, 3100-30Q1028TT
• OEM vs Generic: This is a genuine Carrier factory-authorized part engineered to exact contact gap, coil pull-in voltage, and amp rating specifications. Aftermarket contactors often use thinner contact material that pits faster under high inrush current, shortening service life significantly.
• Install Difficulty: 2/5 — Disconnect all power at the breaker and outdoor disconnect before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals. Discharge any capacitors in the unit before working nearby.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY1RJA060074AAWA packaged unit. Cross-references include HN52KD025, HN52KD025A, and 3100-30Q1028TT. Always verify pole count, amperage, and coil voltage against your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — contact us today.