{"product_id":"carrier-ph16nc01800gaaaa-contactor-1iwxlq","title":"OEM Carrier Contactor 1-Pole 24V 30A for PH16NC01800GAAAA","description":"\u003ch1\u003eOEM Carrier Single-Pole Contactor 1-Pole 24V 30A — HN51KC024 for Model PH16NC01800GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-authorized OEM replacement contactor for the \u003cstrong\u003eCarrier PH16NC01800GAAAA\u003c\/strong\u003e packaged heat pump unit, carrying Carrier part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e. The contactor is the high-voltage relay at the heart of your system's electrical switching circuit — when the 24V thermostat signal energizes its coil, the contacts close and line voltage is delivered to the compressor and\/or condenser fan motor. A failed contactor is one of the most common causes of a complete no-cool or no-heat situation. Symptoms include the outdoor unit humming but not starting, the compressor running continuously even after a setpoint is reached (welded contacts), or total failure to respond to a thermostat call.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 1-Pole | 24 VAC coil | 30 Amps FLA | 150 Amps LRA | 50\/60 Hz | Factory OEM part HN51KC024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Factory Authorized Parts are engineered to meet exact Carrier tolerances for contact gap, coil pull-in voltage, and arc suppression. Generic contactors often use lower-grade contact alloys that pit faster under compressor inrush loads, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before opening the control compartment. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers. Photograph all wiring connections before disconnecting. Verify 24V coil pull-in with a multimeter after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for \u003cstrong\u003eCarrier model PH16NC01800GAAAA\u003c\/strong\u003e packaged heat pump units. Always confirm the part number against your unit's wiring diagram and data plate before ordering. Our fitment team is standing by to verify compatibility — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641662460275,"sku":"CARRIE-PH16NC01800GAAAA-CONTACTOR-HN51KC024","price":66.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641662493043,"sku":"CARRIE-PH16NC01800GAAAA-CONTACTOR-HN51KC024-GEN","price":58.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KC024_d606246e-09ad-4da6-89b4-70986da50b29.jpg?v=1775021320","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph16nc01800gaaaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}