{"product_id":"united-electric-controls-b402-121-temperature-controller","title":"United Electric Controls B402 121 Temperature Controller","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-8\" data-is-intersecting=\"true\"\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\" data-turn-id=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-8\" data-turn-id-container=\"request-6a43a35d-6f44-83ec-bb05-598fd82bfd75-8\" data-testid=\"conversation-turn-430\" data-turn=\"assistant\"\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 data-conversation-screenshot-content=\"\" 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 data-message-author-role=\"assistant\" data-message-id=\"ca158495-69cd-425d-bc6f-b430bc0dd73f\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" 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 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"811\"\u003eThe United Electric Controls B402-121 Temperature Controller is used in industrial process control systems to monitor temperature and provide automatic switching for equipment protection and temperature regulation. Commonly installed in boilers, heat exchangers, HVAC systems, industrial ovens, process piping, and manufacturing equipment requiring an adjustable temperature range of 200°F to 425°F with a 480 VAC control circuit. Maintenance technicians, process engineers, and \u003ca href=\"https:\/\/plgautomation.com\/collections\/hmi-operator-interfaces\"\u003esystem integrators\u003c\/a\u003e use this temperature controller for preventive maintenance, process automation, and replacement of OEM temperature control devices. The B402 Series is a rugged electromechanical controller designed for reliable operation in demanding industrial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"813\" data-end=\"830\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"831\" data-end=\"1314\"\u003eThe United Electric Controls B402-121 Temperature Controller is commonly used in industrial heating systems, heat tracing applications, food and beverage processing, chemical plants, power generation facilities, furnaces, drying equipment, and OEM machinery requiring dependable temperature monitoring and automatic switching. It is suitable for high-temperature process control, over-temperature protection, and equipment shutdown applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1316\" data-end=\"1345\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1346\" data-end=\"1944\"\u003e• Brand: United Electric Controls (UE)\u003cbr data-start=\"1384\" data-end=\"1387\"\u003e• Model: B402-121\u003cbr data-start=\"1404\" data-end=\"1407\"\u003e• Product Type: Temperature Controller \/ Temperature Switch\u003cbr data-start=\"1466\" data-end=\"1469\"\u003e• Series: B402 Series\u003cbr data-start=\"1490\" data-end=\"1493\"\u003e• Temperature Range: 200°F to 425°F (93°C to 218°C)\u003cbr data-start=\"1544\" data-end=\"1547\"\u003e• Switching Voltage: 480 VAC\u003cbr data-start=\"1575\" data-end=\"1578\"\u003e• Contact Type: SPDT Snap-Action Microswitch\u003cbr data-start=\"1622\" data-end=\"1625\"\u003e• Adjustable Setpoint: Yes\u003cbr data-start=\"1651\" data-end=\"1654\"\u003e• Temperature Sensor: Remote Bulb and Capillary Assembly\u003cbr data-start=\"1710\" data-end=\"1713\"\u003e• Enclosure: Heavy-Duty Industrial Housing\u003cbr data-start=\"1755\" data-end=\"1758\"\u003e• Mounting: Panel or Equipment Mount\u003cbr data-start=\"1794\" data-end=\"1797\"\u003e• Application: Industrial Temperature Monitoring and Process Control\u003cbr data-start=\"1865\" data-end=\"1868\"\u003e• Typical Uses: Boilers, Ovens, Heat Exchangers, HVAC, and Process Equipment\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1946\" data-end=\"1970\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1971\" data-end=\"2151\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• United Electric Controls B402 Series Temperature Controller\u003cbr data-start=\"2032\" data-end=\"2035\"\u003e• United Electric Controls One Series Electronic Temperature Switch\u003cbr data-start=\"2102\" data-end=\"2105\"\u003e• Honeywell L404 Series Temperature Controller\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":"UE","offers":[{"title":"New","offer_id":51714353660206,"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_58e27cec-565d-4f15-a2dc-01421fab3b44.jpg?v=1770423840","url":"https:\/\/plgautomation.com\/products\/united-electric-controls-b402-121-temperature-controller","provider":"PLG Automation ","version":"1.0","type":"link"}