{"product_id":"payne-pa12na018000agaa-contactor-1iwybu","title":"OEM Payne Contactor 2-Pole 24V Coil for PA12NA018000AGAA","description":"\u003ch1\u003eOEM Payne 2-Pole Contactor 24V Coil for Model PA12NA018000AGAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) is the factory-specified high-voltage relay for the \u003cstrong\u003ePayne PA12NA018000AGAA\u003c\/strong\u003e split-system air conditioner. The contactor is the critical switching component that receives a 24V signal from the thermostat and closes the circuit to send high-voltage power to the compressor and condenser fan motor. When the contactor fails — due to pitted or burned contacts, a stuck plunger, or a failed coil — your system will either refuse to start entirely, run continuously without shutting off, or produce a loud chattering or buzzing noise from the outdoor unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 2-pole configuration | 24V AC control coil | Factory-rated amperage for PA12NA018000AGAA | Direct OEM replacement for part number HN51KB024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM contactor meets Payne's exact contact gap, spring tension, and coil impedance specifications. Generic contactors often use lower-grade contact materials that pit faster under load, leading to premature failure and potential compressor damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. Line-voltage terminals remain energized until the disconnect is pulled — treat with extreme caution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In stock and ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003ePayne PA12NA018000AGAA\u003c\/strong\u003e split-system condenser. Always verify your existing contactor's pole count, coil voltage, and amperage rating against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909207544179,"sku":"PAYNE-PA12NA018000AGAA-CONTACTOR-HN51KB024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909207576947,"sku":"PAYNE-PA12NA018000AGAA-CONTACTOR-HN51KB024-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_86784212-ae0d-467e-ae3d-43906acba56c.jpg?v=1780717777","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa12na018000agaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}