OEM Carrier 1-Pole Contactor 30 Amp 24V for Model PH13NB04800GABAA — HN51KC024

This is the factory OEM replacement contactor for the Carrier PH13NB04800GABAA heat pump condenser. The contactor is the high-voltage relay that closes the circuit to power your compressor each time the thermostat calls for cooling or heating. When the 24V control signal energizes the coil, the contactor pulls in and connects line voltage to the load. When a contactor fails, the most common symptoms are a complete no-start condition (unit hums but compressor never engages), visible burned or pitted contacts, or a welded contactor that keeps the compressor running even when the thermostat is satisfied.

• Specs: 1-Pole configuration | 30 Amp rated load | 24 VAC coil voltage | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This is a genuine Carrier OEM part built to exact factory tolerances. Generic contactors may use lighter contact material prone to pitting and arcing under high-cycle loads, shortening compressor life and risking nuisance lockouts.
• Install difficulty: 2/5 — Shut off power at the disconnect and verify zero voltage before touching any terminals. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Photograph all wiring connections before disconnecting. Verify 24V coil pull-in after installation with a thermostat call.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH13NB04800GABAA heat pump condenser. Also used across many Carrier, Bryant, and Payne systems specifying part number HN51KC024. Always verify the part number on your unit's wiring diagram or parts list before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.