{"product_id":"rheem-47-21711-11-limit-switch-auto-reset-normally-closed-spst-l180-20f-7-insert","title":"Rheem 47-21711-11 Limit Switch, Auto Reset, Normally Closed, SPST, L180-20F, 7\" Insert","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRheem 47-21711-11\u003c\/strong\u003e is an automatic reset limit switch designed for use in heating systems requiring reliable high-temperature protection. With a temperature range of \u003cstrong\u003e160°F to 180°F\u003c\/strong\u003e, this switch provides precise thermal cutoff control to safeguard your HVAC equipment from overheating conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 47-21711-11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e L180-20F (Opens at 180°F, resets at 160°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReset Type:\u003c\/strong\u003e Automatic Reset\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSwitch Configuration:\u003c\/strong\u003e Single Pole, Single Throw (SPST)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDefault State:\u003c\/strong\u003e Normally Closed (NC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length:\u003c\/strong\u003e 7 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eThis limit switch operates in a \u003cstrong\u003enormally closed\u003c\/strong\u003e state under standard conditions, allowing the heating system to function normally. When temperatures reach the upper limit of \u003cstrong\u003e180°F\u003c\/strong\u003e, the switch automatically opens to interrupt the circuit and protect the system. Once temperatures drop back down to \u003cstrong\u003e160°F\u003c\/strong\u003e, the switch \u003cstrong\u003eautomatically resets\u003c\/strong\u003e itself — eliminating the need for manual intervention.\u003c\/p\u003e\n\n\u003ch3\u003eDesign \u0026amp; Construction\u003c\/h3\u003e\n\u003cp\u003eThe switch features a \u003cstrong\u003e7-inch insert\u003c\/strong\u003e, making it suitable for installations where the sensor must extend into ductwork or heat exchangers to accurately monitor air or surface temperatures. The SPST configuration ensures straightforward wiring and compatibility with standard limit switch circuits found in Rheem and compatible heating systems.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003eThis limit switch is a genuine \u003cstrong\u003eRheem OEM replacement part\u003c\/strong\u003e, making it an ideal choice for maintaining the performance and safety standards of Rheem furnaces and heating equipment. Always verify compatibility with your specific unit model before installation.\u003c\/p\u003e\n\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0\" \u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0\" \u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight:\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.0\" \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Rheem","offers":[{"title":"Default Title","offer_id":51514281820466,"sku":"47-21711-11","price":32.52,"currency_code":"USD","in_stock":true}],"url":"https:\/\/malachypartsplus.com\/es\/products\/rheem-47-21711-11-limit-switch-auto-reset-normally-closed-spst-l180-20f-7-insert","provider":"Malachy Parts+","version":"1.0","type":"link"}