{"product_id":"carrier-csa0300h1d-contactor-1k1rxh","title":"OEM Carrier Contactor 2-Pole 24V Coil for CSA0300H1D — HN53CD209","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CSA0300H1D — HN53CD209\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN53CD209\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CSA0300H1D\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that acts as the primary switch between your thermostat's 24V control signal and the high-voltage power feeding the compressor and condenser fan motor. When the contactor fails — due to worn or pitted contacts, a burned coil, or contacts that weld shut — your system will either refuse to turn on entirely, run continuously without stopping, or fail to cool despite the thermostat calling for it.\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 CSA0300H1D load requirements | OEM part number HN53CD209 | Direct drop-in replacement — no modifications needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM contactor built to exact factory specifications. Generic contactors frequently use lower-grade contact materials that pit and arc faster under load, leading to premature failure and potential compressor damage. OEM ensures proper coil pull-in voltage and contact rating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. High-voltage terminals — exercise caution and verify power is off with a multimeter before touching any wires.\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 stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier CSA0300H1D\u003c\/strong\u003e condenser unit. Always verify the part number on your existing contactor's label and confirm coil voltage and pole configuration match your unit's wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy — don't hesitate to reach out. \u003cstrong\u003eOrder today and get same-day shipping straight to your door.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909582508403,"sku":"CARRIE-CSA0300H1D-CONTACTOR-HN53CD209","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909582541171,"sku":"CARRIE-CSA0300H1D-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_0a6e241c-fc13-4e98-adaa-4fde24cd048a.jpg?v=1782904630","url":"https:\/\/nationalhvacparts.com\/products\/carrier-csa0300h1d-contactor-1k1rxh","provider":"National HVAC Parts","version":"1.0","type":"link"}