OEM Carrier 1-Pole Contactor 30 Amp 24V Coil for Model PH15NA030000BAAA (HN51KC024)

This is the genuine OEM single-pole contactor factory-specified for the Carrier PH15NA030000BAAA heat pump. The contactor is the high-voltage switching relay that responds to a 24V thermostat signal to energize the compressor and condenser fan motor. When it fails, symptoms typically include the outdoor unit refusing to start, audible chattering or humming at the contactor, the unit running continuously without shutting off, or visibly burned and pitted contact points that can no longer make a clean electrical connection.

• Specs: 1-Pole configuration | 24 VAC coil voltage | 30 Amps FLA (Full Load Amps) | 150 Amps LRA (Locked Rotor Amps) | 50/60 Hz | OEM Part# HN51KC024
• OEM vs Generic: This factory-authorized Carrier contactor is built to exact contact gap, coil resistance, and ampacity tolerances. Generic contactors often use thinner contact silver alloy and lower-grade coil windings, which accelerates pitting and coil burnout — especially under the high cycling demands of a heat pump like the PH15NA030000BAAA.
• Install difficulty: 2/5 — Always disconnect and lock out power at the disconnect box before servicing. Photograph all wiring before removing the old contactor. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a multimeter to verify 24V coil pull-in after reinstallation. Note: low-voltage coil lead positions may vary slightly from the original — refer to the unit wiring diagram.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PH15NA030000BAAA heat pump. Also cross-references to Bryant, Payne, and Day & Night units specifying HN51KC024. Always verify the part number on your existing contactor's label or the unit's wiring diagram before ordering. Not sure if this fits? Contact our team — we verify fitment before you buy.