{"product_id":"carrier-ph10ja02400gahaa-contactor-1iwybu","title":"OEM Carrier Contactor 24V Coil 2-Pole for PH10JA02400GAHAA","description":"\u003ch1\u003eOEM Carrier Contactor 24V Coil 2-Pole for Model PH10JA02400GAHAA\u003c\/h1\u003e\u003cp\u003eThis OEM contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) is the factory-specified high-voltage switching relay for the \u003cstrong\u003eCarrier PH10JA02400GAHAA\u003c\/strong\u003e system. The contactor acts as the primary power switch between your 240V supply and the compressor and condenser fan motor — energized by a 24V signal from the control board each time your thermostat calls for cooling. When the contactor fails, the most common symptom is an outdoor unit that simply won't energize: you may hear the indoor air handler running, feel warm air at the vents, and find a buzzing or pitted contactor when you inspect the disconnect box.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-Pole design | 24V coil voltage | Factory-rated amperage matched to Carrier PH10JA02400GAHAA | OEM tolerance contacts for reduced arcing and extended service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier contactor. Generic aftermarket contactors frequently feature lower-grade contact tips that pit and weld faster under the high inrush current of a compressor start, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always disconnect and lock out power at the disconnect box before beginning work. Tools needed: flat-head and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, and a multimeter to verify voltage. Photograph all wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cut-off ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the Carrier \u003cstrong\u003ePH10JA02400GAHAA\u003c\/strong\u003e system. Always verify coil voltage and pole configuration on your unit's data plate before ordering to ensure correct fitment. Have a question about compatibility? Our HVAC parts specialists confirm fitment before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642014880115,"sku":"CARRIE-PH10JA02400GAHAA-CONTACTOR-HN51KB024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642014912883,"sku":"CARRIE-PH10JA02400GAHAA-CONTACTOR-HN51KB024-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_5cf03f02-324f-438f-a37e-9e669fe5c290.jpg?v=1775022070","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja02400gahaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}