OEM Carrier Single-Pole Contactor 1-Pole 30A 24V Coil — HN51KC024 for Model PH13NB03100GAAAA

This is the factory-specified OEM replacement contactor for the Carrier PH13NB03100GAAAA heat pump system. The contactor is the high-voltage relay that closes the circuit to power the compressor and/or condenser fan motor every time your thermostat sends a cooling or heating call. When the contactor fails — through pitted or burned contacts, a welded-open coil, or a coil that won't pull in — your outdoor unit simply will not start, leaving you with no cooling or heating despite the thermostat calling. This is one of the most frequently replaced components in any residential HVAC system.

• Specs: 1-Pole (single-pole) | 30A FLA / 150A LRA | 24 VAC coil | 50/60 Hz | OEM Part # HN51KC024
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part, manufactured to exact factory tolerances for the PH13NB03100GAAAA. Generic contactors may vary in coil pull-in voltage and contact silver-alloy quality, leading to premature failure in high-cycle residential applications.
• Install difficulty: 2/5 — Shut off power at the disconnect box and the breaker panel before proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Verify 24V coil pull-in with a meter after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships the same business day from our warehouse.

Compatibility: Factory-matched for Carrier model PH13NB03100GAAAA. Cross-references include P282-0311, HN51CC024, 301362-101, and 301323-101. Always verify your unit's wiring diagram and data plate before ordering. Our fitment team is available to confirm compatibility before you buy — order with confidence and get your system back online today.