{"product_id":"rheem-47-21900-21-spst-n-c-m-r-limit-230op","title":"Rheem 47-21900-21 SPST N\/C M\/R LIMIT; 230OP","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRheem 47-21900-21\u003c\/strong\u003e is a \u003cstrong\u003eSingle-Pole Single-Throw (SPST) Normally Closed (N\/C) Manual Reset Limit Switch\u003c\/strong\u003e with a \u003cstrong\u003e230°F operating point\u003c\/strong\u003e, designed as a genuine Rheem OEM replacement component.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 47-21900-21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e SPST (Single-Pole Single-Throw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefault State:\u003c\/strong\u003e N\/C (Normally Closed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset Type:\u003c\/strong\u003e Manual Reset (M\/R)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Point:\u003c\/strong\u003e 230°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Limit Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rheem\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFunction \u0026amp; Operation\u003c\/h3\u003e\n\u003cp\u003eThis limit switch operates in a \u003cstrong\u003enormally closed\u003c\/strong\u003e position, meaning the circuit remains complete under standard operating conditions. When the temperature reaches the \u003cstrong\u003e230°F threshold\u003c\/strong\u003e, the switch opens to interrupt the circuit as a safety measure. Due to its \u003cstrong\u003emanual reset\u003c\/strong\u003e design, the switch must be manually reset after it has been tripped, ensuring that any underlying issues are addressed before the system resumes normal operation.\u003c\/p\u003e\n\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eThis component is a \u003cstrong\u003egenuine Rheem OEM part\u003c\/strong\u003e, engineered for use in Rheem heating systems and appliances where high-limit temperature protection is required. It is designed to provide reliable overheat protection and ensure safe system operation.\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":51514527875378,"sku":"47-21900-21","price":14.42,"currency_code":"USD","in_stock":true}],"url":"https:\/\/malachypartsplus.com\/products\/rheem-47-21900-21-spst-n-c-m-r-limit-230op","provider":"Malachy Parts+","version":"1.0","type":"link"}