{"product_id":"carrier-ca13na01800gadba-contactor-1iwxlq","title":"OEM Carrier 40A Contactor 2-Pole 24V for CA13NA01800GADBA — HN51KC024","description":"\u003ch1\u003eOEM Carrier 2-Pole Contactor 24V Coil for Model CA13NA01800GADBA — HN51KC024\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified contactor (part number \u003cstrong\u003eHN51KC024\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CA13NA01800GADBA\u003c\/strong\u003e single-stage split-system air conditioner. The contactor is a high-voltage relay controlled by a 24V signal from your thermostat. When you call 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 unit won't start — symptoms include the indoor air handler running normally while the outdoor unit stays completely dead, or the unit failing to respond to the thermostat at all. In some cases, pitted or welded contacts will cause the compressor to run continuously even when cooling is not called for.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC coil voltage | 30–40 amp rated contacts | Direct OEM replacement — factory part number HN51KC024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use higher-grade silver-alloy contact tips that resist pitting and arcing under repeated load cycling. Generic contactors often use thinner contacts that degrade faster in high-demand cooling seasons, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/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 connections before removing the old contactor. Transfer 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. In stock and ships same business day from our warehouse when ordered before 3PM local time.\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\u003eCA13NA01800GADBA\u003c\/strong\u003e split-system condenser. Verify coil voltage (24V) and pole count on your unit's wiring diagram or data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns hassle.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909660037491,"sku":"CARRIE-CA13NA01800GADBA-CONTACTOR-HN51KC024","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909660070259,"sku":"CARRIE-CA13NA01800GADBA-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_8e16ff99-4c30-4c47-b2fc-7581e7e2dcc7.jpg?v=1782899035","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ca13na01800gadba-contactor-1iwxlq","provider":"National HVAC Parts","version":"1.0","type":"link"}