{"product_id":"carrier-ca13na01800gadaa-contactor-1iwxlq","title":"OEM Carrier Contactor 2-Pole 24V Coil for CA13NA01800GADAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA01800GADAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CA13NA01800GADAA\u003c\/strong\u003e split-system air conditioner. The contactor is the high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to power the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — the outdoor unit will not energize at all, or may run continuously without responding to thermostat commands.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V coil voltage | 30-amp rated contacts | Direct OEM replacement for part number HN51KC024 | Factory-matched contact material and coil resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier contactors use factory-spec silver-alloy contacts that resist pitting and arcing over thousands of switching cycles. Generic contactors often use lower-grade contacts that degrade faster under the high inrush current of compressor startup, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box AND the breaker before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter for coil continuity check. Photograph all wiring connections before removing the old contactor. Line-voltage terminals carry 240V — 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 same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This contactor is the direct OEM replacement for the Carrier \u003cstrong\u003eCA13NA01800GADAA\u003c\/strong\u003e single-stage split-system air conditioner. Always verify your existing contactor's pole count, amperage rating, and coil voltage against your unit's data plate and wiring diagram before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909660529011,"sku":"CARRIE-CA13NA01800GADAA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909660561779,"sku":"CARRIE-CA13NA01800GADAA-CONTACTOR-HN51KC024-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-HN51KC024_045e4272-b18a-4381-bcb5-034553bfa75f.jpg?v=1782904499","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ca13na01800gadaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}