{"product_id":"carrier-csa0300h2d-contactor-1k1rxh","title":"OEM Carrier 2-Pole Contactor 24V Coil for CSA0300H2D — HN53CD209","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CSA0300H2D — HN53CD209\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor for the \u003cstrong\u003eCarrier CSA0300H2D\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay controlled by your thermostat's 24V signal — when the thermostat calls for cooling, the contactor closes and delivers line voltage to the compressor and condenser fan motor. A failed contactor is one of the most common reasons an AC system won't respond at all, runs continuously without shutting off, or trips a breaker repeatedly. OEM part number \u003cstrong\u003eHN53CD209\u003c\/strong\u003e ensures an exact factory-spec replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | Factory-rated amperage for Carrier CSA0300H2D | Direct OEM replacement, no modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor uses factory-specified contact materials and coil windings, delivering precise pull-in voltage and long contact life. Generic contactors often use lower-grade contacts that pit and arc prematurely, leading to repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power at both the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring before removing terminals. The contactor slides into the control panel and wires reconnect to matching terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier CSA0300H2D\u003c\/strong\u003e condensing unit. Always verify coil voltage and pole configuration on your unit's data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — reach out before you buy if you have any questions. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909582442867,"sku":"CARRIE-CSA0300H2D-CONTACTOR-HN53CD209","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909582475635,"sku":"CARRIE-CSA0300H2D-CONTACTOR-HN53CD209-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-HN53CD209_fbfd509e-e65b-47a0-9baa-623f7d23f043.jpg?v=1782897655","url":"https:\/\/nationalhvacparts.com\/products\/carrier-csa0300h2d-contactor-1k1rxh","provider":"National HVAC Parts","version":"1.0","type":"link"}