{"product_id":"carrier-contactor-c50a203511","title":"OEM Carrier Contactor C50A203511 for Model C50A203511 HVAC Unit","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Contactor C50A203511 for Model C50A203511 HVAC Unit\u003c\/h1\u003e\n\u003cp\u003eThe Carrier C50A203511 contactor is a factory-original switching relay that manages line voltage to your HVAC system's compressor and condenser fan motor. When the thermostat calls for cooling, the coil energizes and closes the contacts, powering the outdoor unit; once satisfied, the contacts open to break the circuit safely. Engineered to precise Carrier specifications for model C50A203511, it provides dependable contact engagement, accurate coil ratings, and durability through repeated high-amperage cycling. Pitted, burned, or stuck contacts are one of the most common HVAC failures, often causing a unit that hums, chatters, or won't start at all. Replacing this contactor restores clean, reliable switching. Installation is a moderate DIY job for anyone comfortable with line voltage: cut power at both the breaker and outdoor disconnect, photograph the wiring, then transfer each lead to its matching terminal. Using the genuine OEM part ensures proper voltage and amperage ratings that protect your compressor investment. We keep this contactor in stock—order before 3PM CST and it ships the same day so your system is cooling again fast.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model C50A203511.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62965128757619,"sku":"carrier-contactor-c50a203511","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-contactor-c50a203511","provider":"National HVAC Parts","version":"1.0","type":"link"}