{"product_id":"carrier-ph12na02400gagaa-contactor-1iwybu","title":"OEM Carrier Contactor 1-Pole 24V 25A HN51KB024 — PH12NA02400GAGAA","description":"\u003ch1\u003eOEM Carrier 1-Pole Contactor 24V 25 Amp HN51KB024 for Model PH12NA02400GAGAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM single-pole contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PH12NA02400GAGAA\u003c\/strong\u003e heat pump \/ condensing unit. The contactor is the high-voltage relay that bridges 240V line power to your compressor and condenser fan motor whenever the 24V thermostat signal energizes the coil. When the contactor fails — due to pitted or welded contacts, a burned coil, or mechanical sticking — the system will either fail to start entirely, short-cycle immediately after startup, or in the case of welded contacts, run continuously even when cooling is not called for.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 1-Pole | 24V AC 50\/60Hz coil | 25 FLA (Full Load Amps) | Factory-matched OEM tolerances for Carrier PH12NA02400GAGAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use factory-spec contact alloys and coil windings rated to exact pull-in voltage. Generic contactors often use inferior contact materials that pit faster under high-cycle residential loads, shortening compressor life and increasing nuisance lockouts.\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 panel. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph or label every wire before disconnecting — incorrect reassembly can damage the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePH12NA02400GAGAA\u003c\/strong\u003e. Verify your unit's data plate shows part number HN51KB024 or cross-reference against your unit's wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641962025331,"sku":"CARRIE-PH12NA02400GAGAA-CONTACTOR-HN51KB024","price":91.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641962058099,"sku":"CARRIE-PH12NA02400GAGAA-CONTACTOR-HN51KB024-GEN","price":80.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_b6b533d9-a0bb-4277-894a-77f9e4ec6e18.jpg?v=1775021267","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na02400gagaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}