{"product_id":"united-electric-controls-b105-121-temperature-switch-100-series","title":"United Electric Controls B105-121 Temperature Switch 100 Series","description":"\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\" dir=\"auto\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3\u003eDescription:\u003c\/h3\u003e\n\u003cp\u003eThe United Electric Controls B105-121 Temperature \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eSwitch\u003c\/a\u003e is used in industrial process heating, heat tracing, freeze protection, and equipment temperature monitoring systems to provide automatic temperature-actuated switching. Commonly installed in piping systems, storage tanks, heat exchangers, boilers, and process equipment requiring reliable temperature control and alarm functions. Maintenance technicians and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this part for repair, retrofit, expansion, or replacement of existing temperature monitoring systems. The B105-121 features an adjustable temperature range of 200°F to 425°F with a local immersion stem sensing element. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eApplications:\u003c\/h3\u003e\n\u003cp\u003eThe United Electric Controls B105-121 Temperature Switch is commonly used in industrial process plants, OEM equipment, heat tracing systems, freeze protection applications, fire suppression systems, and utility installations. The switch provides dependable temperature-actuated electrical switching for alarms, equipment shutdown, heating control, and process regulation in demanding industrial environments. It is part of the United Electric 100 Series, designed for safety, alarm, and equipment protection applications. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp\u003e• Brand: United Electric Controls\u003cbr\u003e• Part Number: B105-121\u003cbr\u003e• Product Type: Temperature Switch\u003cbr\u003e• Series: 100 Series\u003cbr\u003e• Switch Type: Electromechanical Temperature Switch\u003cbr\u003e• Temperature Range: 200°F to 425°F\u003cbr\u003e• Maximum Temperature: 475°F\u003cbr\u003e• Sensor Type: Local Immersion Stem\u003cbr\u003e• Stem Material: Nickel-Plated Brass\u003cbr\u003e• Process Connection: 1\/2 in. NPT Male\u003cbr\u003e• Stem Size: 9\/16 in. OD × 1-7\/8 in. Below Thread\u003cbr\u003e• Output Contacts: Single SPDT\u003cbr\u003e• Electrical Rating: 15A @ 125\/250\/480 VAC Resistive\u003cbr\u003e• Enclosure Type: NEMA 4X Weatherproof\u003cbr\u003e• Housing Material: Epoxy-Coated Cast Aluminum\u003cbr\u003e• Setpoint Adjustment: Internal Reference Dial\u003cbr\u003e• Application: Industrial Temperature Monitoring and Control\u003cbr\u003e• Engineered for Continuous-Duty Industrial Service \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp\u003e• United Electric Controls B100-121 Temperature Switch\u003cbr\u003e• United Electric Controls B105-120 Temperature Switch\u003cbr\u003e• United Electric Controls E121 Series Temperature Switch\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"United","offers":[{"title":"New","offer_id":51728598139182,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_f36c5e61-cef4-4339-9c0f-d26106f8e41b.jpg?v=1770586993","url":"https:\/\/plgautomation.com\/products\/united-electric-controls-b105-121-temperature-switch-100-series","provider":"PLG Automation ","version":"1.0","type":"link"}