OEM Carrier 2-Pole Contactor 24V Coil for Model PH4ANG018000BCAA

This is the factory OEM replacement contactor for the Carrier PH4ANG018000BCAA, supplied under OEM part number HN51KC024. The contactor is a high-voltage relay that sits between your thermostat's 24V control signal and the high-voltage compressor and condenser fan motor circuits. When the thermostat calls for cooling, the 24V coil energizes and pulls in the contact points to deliver line voltage to the compressor. When the contactor fails — through pitted or burned contacts, a stuck plunger, or a shorted coil — the system either won't start at all or runs continuously without shutting off. Replacing the OEM contactor restores reliable switching and protects your compressor from voltage irregularities.

• Specs: 2-Pole configuration | 24V AC coil | Factory-rated ampacity for 1.5-ton compressor load | Drop-in OEM replacement — no modification required
• OEM vs Generic: OEM contactors use factory-spec contact materials and coil windings, ensuring precise pull-in voltage and rated contact life. Generic alternatives often use lower-grade contact alloys that pit faster under inductive compressor loads, leading to premature failure.
• Install Difficulty: 2/5 — Always disconnect power at the breaker and wait 5 minutes before servicing. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Line and load terminals must be reconnected correctly.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PH4ANG018000BCAA. Always verify your unit's data plate and existing contactor label (poles, coil voltage, ampacity) match before ordering. Our team is available to verify fitment — contact us before you order if you have any questions.