{"product_id":"carrier-ph10ja01800gaeaa-contactor-1iwybu","title":"OEM Carrier Contactor 1-Pole 24V 25A for PH10JA01800GAEAA","description":"\u003ch1\u003eOEM Carrier 1-Pole Contactor 24V 25 Amp for Model PH10JA01800GAEAA — Part# HN51KB024\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified contactor for the \u003cstrong\u003eCarrier PH10JA01800GAEAA\u003c\/strong\u003e packaged unit. The contactor is the high-voltage switching relay at the heart of your system's electrical circuit — when the thermostat sends a 24V call for cooling or heating, the contactor coil energizes, closing the main contacts and delivering line voltage to the compressor and\/or condenser fan motor. When a contactor fails, symptoms range from a complete no-start condition (coil won't pull in) to a stuck-on unit that won't shut off (contacts welded from heat and arcing), or intermittent compressor cycling that causes repeated tripping. Left unaddressed, a failing contactor can burn wiring, damage the compressor, and void equipment warranties.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 1-Pole (Single Pole) | 24V AC 50\/60Hz Coil | 25 FLA (Full Load Amps) | 35 RES | Factory OEM part number HN51KB024\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 contact gap, coil resistance, and thermal ratings. Generic aftermarket contactors frequently use lower-grade silver-alloy contacts that pit and weld faster under high-cycle load — especially in packaged units like the PH10JA01800GAEAA that cycle frequently in peak season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Always photograph all wire terminations before removal. Discharge any capacitors in the panel before reaching near adjacent components. Swap wires one at a time to avoid miswiring the load and line lugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for \u003cstrong\u003eCarrier model PH10JA01800GAEAA\u003c\/strong\u003e. Always verify your unit's wiring diagram and confirm the 1-pole, 24V coil specification on your original contactor's data label before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your unit back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642027200883,"sku":"CARRIE-PH10JA01800GAEAA-CONTACTOR-HN51KB024","price":91.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642027233651,"sku":"CARRIE-PH10JA01800GAEAA-CONTACTOR-HN51KB024-GEN","price":80.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-HN51KB024_5dd25ebd-6d50-4654-af17-123a951a7148.jpg?v=1775021233","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja01800gaeaa-contactor-1iwybu","provider":"National HVAC Parts","version":"1.0","type":"link"}