{"product_id":"carrier-ch13na03700gacaa-contactor-1iwxlq","title":"OEM Carrier 40A Contactor 2-Pole 24V Coil for CH13NA03700GACAA","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CH13NA03700GACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CH13NA03700GACAA\u003c\/strong\u003e split-system air conditioner. The contactor is a high-voltage relay that receives a 24V signal from your thermostat and closes the circuit to send 240V power to the compressor and condenser fan motor. When the contactor fails — due to pitted contacts, a stuck plunger, or a burned coil — your outdoor unit will not energize at all, or may run continuously without cycling off. This OEM part restores factory-specified switching performance and protects your compressor from irregular voltage delivery.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30–40A load rating | Heavy-duty silver-alloy contact tips | Direct OEM replacement for part number HN51KC024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory-matched contactor meets Carrier's exact coil impedance and contact gap specifications. Generic contactors often use lower-grade contact alloys that arc and pit faster, leading to repeat failures within a single cooling season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at both the thermostat and the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all high-voltage wiring connections before removing the old contactor. Swap wires one at a time to avoid miswiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before the daily cutoff ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM drop-in replacement for the Carrier \u003cstrong\u003eCH13NA03700GACAA\u003c\/strong\u003e 3-ton split-system condenser. Always verify coil voltage and pole configuration on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out via chat or phone and have your model and serial number ready.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909631267187,"sku":"CARRIE-CH13NA03700GACAA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909631299955,"sku":"CARRIE-CH13NA03700GACAA-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_b1ba7c2c-fdfc-420c-8325-6bc5e70c8899.jpg?v=1782898918","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch13na03700gacaa-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}