{"product_id":"l280-40f-nordyne-limit-switch-5-626494r","title":"626494R Nordyne limit switch 5\" L280-40F","description":"\u003ch1\u003e626494R Nordyne limit switch 5\" L280-40F  \u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e626494R Nordyne limit switch 5\" L280-40F is an OEM automatic-reset temperature-limit control designed to protect gas furnaces from overheating. It trips open at 280 °F and resets at 240 °F, interrupting burner or blower power whenever heat-exchanger temperatures exceed safe limits. Housed in a compact chassis-mount package with two quick-connect terminals, it provides reliable, repeat-cycle protection without manual intervention.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e626494R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eL280-40F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eAutomatic-reset high-limit safety switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip Temperature\u003c\/td\u003e\n\u003ctd\u003e280 °F ± 5 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset Temperature\u003c\/td\u003e\n\u003ctd\u003e240 °F ± 5 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Differential\u003c\/td\u003e\n\u003ctd\u003e40 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulb Diameter\u003c\/td\u003e\n\u003ctd\u003e1\/2″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulb Length\u003c\/td\u003e\n\u003ctd\u003e5″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Dimensions\u003c\/td\u003e\n\u003ctd\u003e1-3\/4″ × 1-1\/2″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003eSPST normally closed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminals\u003c\/td\u003e\n\u003ctd\u003eTwo 1\/4″ male quick-connect spades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSnap-in chassis-mount clip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eHigh-temperature thermoplastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Ambient Range\u003c\/td\u003e\n\u003ctd\u003e32 °F to 175 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e0.38 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging Weight\u003c\/td\u003e\n\u003ctd\u003e10 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplaces Nordyne 626494 (auto-limit switch)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"ps-2\"\u003e\n\u003cp\u003e\u003cspan\u003eNeuco Manufacturer Part ID: 120217\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAlternate size code: 36T01B5\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFits Nordyne and Nordyne-Miller gas furnaces originally equipped with an L280-40F automatic-reset limit control. Also compatible with Intertherm, Coleman, Amana, Ducane, and various private-label units that call for a 280 °F high-limit cut-out with 40 °F reset differential. Always verify the furnace’s data-plate specifications before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnician Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDe-energize all power and shut off the gas supply; follow lockout\/tagout procedures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemove the furnace access panel to expose the existing limit switch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePhotograph or label the quick-connect terminals to capture original wiring orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePress the snap-in clip or depress mounting tabs to release and remove the old switch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInsert the 5″ sensing bulb into its mounting clip and snap the new 626494R into place.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReconnect spade terminals, ensuring full engagement on each lug.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestore power and call for heat; verify the switch opens at approximately 280 °F and recloses near 240 °F.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIf nuisance trips occur, inspect airflow pathways, check inducer and blower operation, and confirm filter and venting conditions before retesting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eService limit switch, 1\/2\" diameter, 5\" long. L280-40F. End with 2 terminals measures 1-3\/4 x 1-1\/2\". Size 36T01B5. Replaces 626494.\u003c\/p\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":13195370691,"sku":"626494R","price":22.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/yhst-130159302524877_2272_471376840.jpeg?v=1739538886","url":"https:\/\/hvacpartstore.com\/products\/l280-40f-nordyne-limit-switch-5-626494r","provider":"HVACpartstore","version":"1.0","type":"link"}