OEM Carrier Single-Pole Contactor 30A 24V Coil (HN51KC024) for Model PH4ANG048000BCAA

This is the factory-specified OEM contactor for the Carrier PH4ANG048000BCAA heat pump/air conditioning system. The contactor is a high-voltage electromechanical relay that acts as the primary power switch for your compressor and condenser. When your thermostat sends a 24V signal, the contactor coil energizes, closing the high-voltage contacts to start the system. A failed contactor is one of the most common causes of a complete no-cool or no-heat condition — symptoms include the outdoor unit failing to start, audible chattering or humming at the contactor, pitted or burned contacts, or the unit running continuously without shutting off.

• Specs: 1-Pole | 30A Full Load Amps (FLA) / 150A Locked Rotor Amps (LRA) | 24 VAC Coil Voltage | 50/60 Hz | OEM Part Number HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact factory tolerances for the PH4ANG048000BCAA. Generic contactors may use lower-grade contact materials prone to pitting and arcing, shortening compressor life and risking nuisance lockouts.
• Install Difficulty: 2/5 — Shut off all power at the disconnect box before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24V coil pull-in after installation with a call from the thermostat.
• Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Confirmed fit for Carrier model PH4ANG048000BCAA. Cross-references include P282-0311, HN51CC024, HN51KB024, 0351802X67, 301362-101, and P282-1304. Always verify your unit's wiring diagram and existing contactor amperage rating before ordering. Need help confirming fitment? Our team is ready to verify your part before you buy.