{"product_id":"3l01-140-copeland-comfort-control-white-rodgers-limit-100-f-140-f","title":"3L01-140 Copeland Comfort Control (White Rodgers) Limit 100°F\t140°F","description":"\u003ch1\u003e3L01-140 Copeland Comfort Control (White Rodgers) Limit 100°F    140°F\u003c\/h1\u003e\n\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003e3L01-140 Snap Disc Limit Switch (White-Rodgers \/ Copeland Comfort Control)\u003c\/strong\u003e is an automatic reset temperature safety control designed to protect HVAC and refrigeration equipment from overheating. Featuring a \u003cstrong\u003e140°F fixed cut-out temperature\u003c\/strong\u003e and \u003cstrong\u003e100°F fixed cut-in temperature\u003c\/strong\u003e, this \u003cstrong\u003eopen-on-rise\u003c\/strong\u003e switch automatically interrupts the circuit when excessive temperatures occur and restores operation once temperatures return to a safe level.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCross-Reference\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3L01-140\u003c\/li\u003e\n\u003cli\u003e3L01140\u003c\/li\u003e\n\u003cli\u003e60T11 Series\u003c\/li\u003e\n\u003cli\u003e60T11 Snap Disc Limit Switch\u003c\/li\u003e\n\u003cli\u003eWhite-Rodgers 3L01-140\u003c\/li\u003e\n\u003cli\u003eCopeland Comfort Control 3L01-140\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eDirect OEM\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhite-Rodgers 3L01-140\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCompatible Brands\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhite-Rodgers\u003c\/li\u003e\n\u003cli\u003eEmerson\u003c\/li\u003e\n\u003cli\u003eCopeland\u003c\/li\u003e\n\u003cli\u003eYork\u003c\/li\u003e\n\u003cli\u003eColeman\u003c\/li\u003e\n\u003cli\u003eLuxaire\u003c\/li\u003e\n\u003cli\u003eUniversal HVAC Applications\u003c\/li\u003e\n\u003cli\u003eRefrigeration Equipment Manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eUsed in heating, cooling, and refrigeration systems to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtect equipment from overheating\u003c\/li\u003e\n\u003cli\u003eOpen the control circuit at 140°F\u003c\/li\u003e\n\u003cli\u003eAutomatically reset at 100°F\u003c\/li\u003e\n\u003cli\u003eSafeguard motors, heaters, and electrical controls\u003c\/li\u003e\n\u003cli\u003eProvide dependable temperature-based safety protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eRelated Components\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSnap Disc Limit Switch\u003c\/li\u003e\n\u003cli\u003eFan Switch\u003c\/li\u003e\n\u003cli\u003eFan \u0026amp; Limit Control\u003c\/li\u003e\n\u003cli\u003eHigh Limit Control\u003c\/li\u003e\n\u003cli\u003eControl Board\u003c\/li\u003e\n\u003cli\u003eTransformer\u003c\/li\u003e\n\u003cli\u003eCompressor Contactor\u003c\/li\u003e\n\u003cli\u003eTemperature Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnician Notes\u003c\/h3\u003e\n\u003cp\u003eThe 3L01-140 is an \u003cstrong\u003eautomatic reset, open-on-rise snap disc limit switch\u003c\/strong\u003e. Under normal conditions, contacts remain closed and open when the sensing surface reaches \u003cstrong\u003e140°F\u003c\/strong\u003e. Once temperatures fall to approximately \u003cstrong\u003e100°F\u003c\/strong\u003e, the switch automatically resets. Always match temperature ratings, terminal configuration, mounting style, and switch action when replacing.\u003c\/p\u003e\n\u003cp\u003eRepeated trips often indicate restricted airflow, dirty coils, defective fan motors, failing bearings, or excessive equipment operating temperatures.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCommon Symptoms of Failure\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEquipment shuts down on temperature safety\u003c\/li\u003e\n\u003cli\u003eIntermittent operation\u003c\/li\u003e\n\u003cli\u003eOpen safety circuit\u003c\/li\u003e\n\u003cli\u003eHeating or cooling lockout\u003c\/li\u003e\n\u003cli\u003eNo continuity through switch contacts\u003c\/li\u003e\n\u003cli\u003eFrequent nuisance trips\u003c\/li\u003e\n\u003cli\u003eReduced equipment reliability\u003c\/li\u003e\n\u003cli\u003eFailure to restart after overheating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect power before servicing.\u003c\/li\u003e\n\u003cli\u003eVerify replacement temperature ratings match the original component.\u003c\/li\u003e\n\u003cli\u003eConfirm switch action is \"Open on Rise.\"\u003c\/li\u003e\n\u003cli\u003eMount securely against the original sensing surface.\u003c\/li\u003e\n\u003cli\u003eInspect wiring terminals for corrosion or heat damage.\u003c\/li\u003e\n\u003cli\u003eCheck airflow and operating temperatures.\u003c\/li\u003e\n\u003cli\u003eTest continuity before startup.\u003c\/li\u003e\n\u003cli\u003eVerify proper operation through a complete cycle.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch3\u003eRecommended Inspection Items\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower motor operation\u003c\/li\u003e\n\u003cli\u003eCondenser fan operation\u003c\/li\u003e\n\u003cli\u003eAirflow restrictions\u003c\/li\u003e\n\u003cli\u003eCoil cleanliness\u003c\/li\u003e\n\u003cli\u003eElectrical terminals\u003c\/li\u003e\n\u003cli\u003eWiring harness condition\u003c\/li\u003e\n\u003cli\u003eTemperature rise across equipment\u003c\/li\u003e\n\u003cli\u003eControl board diagnostics\u003c\/li\u003e\n\u003cli\u003eSupply voltage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":45885779509314,"sku":"3L01-140","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/Screenshot2026-11-02182103_4db74d6e-beda-4033-9c51-582ffa2cf2df.png?v=1793669829","url":"https:\/\/hvacpartstore.com\/products\/3l01-140-copeland-comfort-control-white-rodgers-limit-100-f-140-f","provider":"HVACpartstore","version":"1.0","type":"link"}