{"product_id":"carrier-ph10ja030000adaa-contactor-1iwybu","title":"OEM Carrier Contactor 24V Coil 2-Pole for PH10JA030000ADAA","description":"\u003ch1\u003eOEM Carrier Contactor 24V Coil 2-Pole for Model PH10JA030000ADAA\u003c\/h1\u003e\u003cp\u003eThis OEM contactor (part number \u003cstrong\u003eHN51KB024\u003c\/strong\u003e) is the factory-specified high-voltage relay for the \u003cstrong\u003eCarrier PH10JA030000ADAA\u003c\/strong\u003e system. The contactor acts as the primary switching device that allows the 24V control board signal to energize the high-voltage compressor and condenser fan circuits. When it fails, the most common symptom is an air conditioning system that simply won't turn on — the thermostat calls for cooling but nothing happens. Worn or pitted contacts can also cause intermittent operation, chattering, or the compressor running continuously even after the thermostat is satisfied.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 24V AC coil | 2-pole design | Factory-matched contact rating | Direct OEM replacement for part number HN51KB024\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM contactors use silver-alloy contact tips rated to factory arc-interruption specs. Generic contactors often use inferior contact materials that pit quickly under high-inrush compressor loads, leading to premature failure within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and the breaker panel before servicing. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before removal to ensure correct reassembly.\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 as a direct OEM replacement for \u003cstrong\u003eCarrier model PH10JA030000ADAA\u003c\/strong\u003e. Verify coil voltage and pole configuration on your unit's data plate before ordering. Our technical team is available to confirm fitment — reach out before you buy for peace of mind.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642013438323,"sku":"CARRIE-PH10JA030000ADAA-CONTACTOR-HN51KB024","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642013471091,"sku":"CARRIE-PH10JA030000ADAA-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_0ecd6092-c34e-4b43-9379-b54c46a1924c.jpg?v=1775022072","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja030000adaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}