OEM Carrier 3-Pole Contactor 24V 40A (HN53CD024) for Model YAC3680YAC108T

This is the genuine OEM Carrier HN53CD024 3-pole contactor, the factory-specified replacement for the Carrier YAC3680YAC108T. The contactor is a high-voltage relay that receives a low-voltage (24V) signal from the thermostat and closes its contacts to deliver line voltage to the compressor and condenser fan motor. When a contactor fails — through burned contacts, pitted terminals, or a stuck plunger — the system will either refuse to start, hum without fully engaging, or run continuously even after the thermostat is satisfied.

• Specs: 24V coil voltage | 40A continuous current rating | 3-pole construction | Factory OEM part number HN53CD024 | Genuine Carrier replacement
• OEM vs Generic: This is a genuine Carrier OEM contactor, not a third-party substitute. OEM contacts are rated to exact amperage and coil pull-in specifications, ensuring proper engagement and long service life. Generic contactors may use lower-grade silver alloy contacts prone to premature pitting and arcing.
• Install Difficulty: 3/5 — Always shut off power at the disconnect and breaker before servicing. Verify contacts are fully discharged before handling. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V coil signal and check for welded contacts). Photograph all wiring connections before removal.
• Warranty: 1-year OEM manufacturer warranty. In-stock units ship same business day when ordered by 5 PM local time.

Compatibility: Engineered as a direct OEM replacement for the Carrier YAC3680YAC108T. Verify your unit's data plate confirms a 3-pole, 24V coil, 40A-rated contactor before ordering. Not sure about fitment? Our HVAC parts specialists verify compatibility before your order ships — no guesswork required.