{"product_id":"trane-service-first-sfctr1p30a24vsa2l-contactor-1p-30a-24vac-screw-terminals-a2l-oem-replacement","title":"Trane Service First SFCTR1P30A24VSA2L Contactor 1P 30A 24VAC Screw Terminals A2L OEM Replacement","description":"\u003ch1\u003eTrane Service First SFCTR1P30A24VSA2L Contactor 1P 30A 24VAC Screw Terminals A2L OEM Replacement\u003c\/h1\u003e\n\u003cp\u003eThe SFCTR1P30A24VSA2L is a genuine Trane Service First heavy-duty definitive purpose contactor, acting as the critical switching \"brain\" for your outdoor condenser or heat pump unit. This OEM component is specifically engineered to manage high-amperage electrical loads, serving as the primary gateway that allows the thermostat’s 24V signal to engage the 230V compressor and fan motor circuits. Built to Trane’s rigorous A2L compatibility standards, this contactor features specialized silver cadmium oxide contacts designed to prevent \"pitting\" and sticking, ensuring a clean electrical break every time the system cycles off. Replacing your contactor with this authentic Service First part preserves the factory-certified safety and operational reliability of your Trane or American Standard system.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine OEM Part Number SFCTR1P30A24VSA2L:\u003c\/strong\u003e Guaranteed factory-direct fit for Trane and American Standard units, ensuring terminal alignment and mounting footprint accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 30 Amp Rating:\u003c\/strong\u003e Engineered to handle the high-inrush starting current of residential compressors without overheating or premature coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixes Sticking Relay and Noise Issues:\u003c\/strong\u003e Replaces aging contactors prone to loud humming, buzzing, or \"welded\" contacts that cause the outdoor unit to run even when the thermostat is off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Safety Monitoring:\u003c\/strong\u003e Features a dust-shielded enclosure to prevent debris and insects from entering the contact points, a leading cause of electrical shorts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA2L Refrigerant Compatibility:\u003c\/strong\u003e Specifically designed to meet the electrical arc suppression requirements for modern systems utilizing A2L mildly flammable refrigerants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Trane \/ American Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Service First\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e SFCTR1P30A24VSA2L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1 Pole (with Shunt)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Load Amps:\u003c\/strong\u003e 30A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 24 VAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Screw Terminals with Quick Connects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocked Rotor Amps:\u003c\/strong\u003e 150\/180A (at 240V\/480V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🛠️ HVAC Depot Pro Tip\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTake a Picture First —\u003c\/strong\u003e Before removing the old contactor, photograph the wiring exactly as it sits on the original terminals. Trane systems often use a \"shunt\" on one side of the pole, meaning one line remains hot at all times; miswiring this can cause a short circuit or prevent the unit from shutting down. During your diagnostic check, inspect the contact points for \"charring\" or black soot; if found, replace the contactor immediately to prevent a voltage drop that could damage your expensive compressor. Always ensure the 24V thermostat wires are securely fastened to the side coil terminals to prevent intermittent starting issues.\u003c\/p\u003e\n\u003ch2\u003eCross-Reference\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperseded Parts:\u003c\/strong\u003e CTR02573, CTR01147, D155355P01, SFCTR1P30A24V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegacy Drawing Numbers:\u003c\/strong\u003e 170-400-11, 1012-920, C147094P02\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite-Rodgers\/Emerson Equivalents:\u003c\/strong\u003e Emerson 90-161, Packard C130A, Mars 17325, Honeywell DP1030A1017\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4TTR\u003c\/strong\u003e (Suffixes: 3018, 3024, 3030, 4018, 4024)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4TWR\u003c\/strong\u003e (Suffixes: 3018, 3024, 4018, 4024)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2TTR\u003c\/strong\u003e (Suffixes: 2018, 2024, 3018, 3024)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4A7A\u003c\/strong\u003e (Suffixes: 3018, 3024, 4018, 4024)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4A6H\u003c\/strong\u003e (Suffixes: 4018, 4024, 5018)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Trane \/ American Standard","offers":[{"title":"Default Title","offer_id":52451493216619,"sku":"662766532454","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/SFCTR1P30A24VSA2L.jpg?v=1772225406","url":"https:\/\/tophvacparts.com\/products\/trane-service-first-sfctr1p30a24vsa2l-contactor-1p-30a-24vac-screw-terminals-a2l-oem-replacement","provider":"HVAC Parts and Equipment Depot: Homeowners \u0026 Contractors Welcome | Plano, TX","version":"1.0","type":"link"}