OEM Carrier Single-Pole Contactor 1-Pole 30A 24V Coil for Model PH16NC04800GBAAA

This is the genuine OEM Carrier contactor (part number HN51KC024), the factory-specified replacement for the Carrier PH16NC04800GBAAA heat pump unit. The contactor is a high-voltage relay controlled by the 24V thermostat circuit — when the thermostat calls for cooling or heating, the 24V coil energizes and pulls in the contacts, sending line voltage to the compressor and/or condenser fan motor. When a contactor fails, symptoms include the system not turning on at all, a loud humming or chattering noise from the outdoor unit, welded contacts causing the system to run continuously, or visibly burned and pitted contact surfaces.

• Specs: 1-Pole (single-pole) | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 24 VAC coil voltage | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part engineered to exact OEM tolerances. Generic contactors may use lighter-gauge contacts that pit and weld faster under load, shortening compressor life and risking stuck-on failures.
• Install Difficulty: 2/5 — Always disconnect and lock out power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify coil pull-in with a 24V call after installation before closing the panel.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Verified fit for Carrier model PH16NC04800GBAAA. This contactor is also widely used across Carrier, Bryant, and Payne residential and light-commercial cooling and heat pump systems rated up to 5 tons (60,000 BTU). Always confirm the part number against your unit's wiring diagram or data plate before ordering. Our team is available to verify fitment — contact us before you buy.