{"product_id":"carrier-ph4ang018000baaa-contactor-1iwxlq","title":"OEM Carrier Contactor 24V Coil 2-Pole for PH4ANG018000BAAA","description":"\u003ch1\u003eOEM Carrier Contactor 24V Coil 2-Pole for Model PH4ANG018000BAAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) is the factory-specified high-voltage switching relay for the \u003cstrong\u003eCarrier PH4ANG018000BAAA\u003c\/strong\u003e heat pump system. The contactor acts as the electrical bridge between your 24V thermostat control signal and the high-voltage power supply to the compressor and condenser fan motor. When the contactor fails, the most common symptom is an air conditioning or heat pump system that simply will not turn on — the thermostat calls for cooling or heating, but nothing happens at the outdoor unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V AC coil voltage | 2-pole configuration | Factory-matched contact ratings | OEM part number HN51KC024 | Direct drop-in replacement, no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor is manufactured to Carrier's exact coil voltage and contact amperage specifications. Generic contactors frequently use lower-grade contact materials that pit and burn faster under load, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at both the disconnect and the breaker panel before beginning work. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. Contact terminals carry line voltage — exercise extreme caution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for Carrier model \u003cstrong\u003ePH4ANG018000BAAA\u003c\/strong\u003e. Always verify coil voltage and pole configuration against your unit's data plate and wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641307451763,"sku":"CARRIE-PH4ANG018000BAAA-CONTACTOR-HN51KC024","price":65.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641307484531,"sku":"CARRIE-PH4ANG018000BAAA-CONTACTOR-HN51KC024-GEN","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KC024_6d823478-5a02-4f13-a9b0-8913c3a093d6.jpg?v=1775022148","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph4ang018000baaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}