OEM Carrier 1-Pole 30 Amp 24V Contactor HN51KC024 for Model PH4GNAB36000AA

This is the genuine OEM factory-specified contactor for the Carrier PH4GNAB36000AA heat pump/air conditioning system. The contactor is the high-voltage relay that closes when the thermostat sends a 24V signal, allowing line voltage to reach the compressor and condenser fan motor. When it fails — due to pitted contacts, a burned coil, or welded contact points — the system will appear completely unresponsive, hum without starting, or run continuously without shutting off.

• Specs: 1-Pole configuration | 24 VAC coil voltage | 30A Full Load Amps (FLA) | 150A Locked Rotor Amps (LRA) | 50/60 Hz | OEM Part# HN51KC024
• OEM vs Generic: This is the exact factory-authorized part for your Carrier unit. OEM contactors meet precise coil resistance and contact gap tolerances. Generic alternatives may use substandard contact materials that pit and weld faster under high cycling loads, especially in summer.
• Install difficulty: 2/5 — Shut off all power at the disconnect and breaker before beginning. Photograph all wiring connections before removing the old contactor. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter (to verify coil resistance and confirm 24V pull-in). Note: low-voltage coil wires may be positioned differently on the replacement vs. the original — consult the unit wiring diagram.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-specified replacement contactor for Carrier model PH4GNAB36000AA. Also cross-references part numbers HN51CC024, P282-1304, P282-1305, 301362-101, and 72930DP1. Verify your unit's parts list or data plate before ordering. Our fitment team is available to confirm compatibility before you buy.