{"product_id":"united-electric-controls-b402-120-temperature-switch-400-series","title":"UNITED ELECTRIC CONTROLS B402-120 TEMPERATURE SWITCH 400 SERIES","description":"\u003ch3\u003eDescription:\u003c\/h3\u003e\n\u003cp\u003eThe United Electric Controls B402-120 Temperature \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eSwitch\u003c\/a\u003e is used in industrial temperature monitoring and control systems to provide automatic electrical switching when preset temperature limits are reached. Commonly installed in boilers, heat exchangers, process heaters, storage tanks, industrial ovens, and manufacturing equipment requiring reliable temperature regulation and equipment protection. Maintenance teams 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 sensing and control systems.\u003c\/p\u003e\n\u003ch3\u003eApplications:\u003c\/h3\u003e\n\u003cp\u003eThe United Electric Controls B402-120 Temperature Switch is commonly used in process heating systems, HVAC equipment, chemical processing plants, food and beverage production lines, utility services, and industrial automation installations. The switch utilizes a liquid-filled sensing element to detect temperature changes and actuates snap-action electrical contacts for alarms, shutdown functions, and automatic process control, helping maintain safe and efficient operation of critical industrial equipment.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp\u003e• Brand: United Electric Controls\u003cbr\u003e• Part Number: B402-120\u003cbr\u003e• Product Type: Temperature Switch\u003cbr\u003e• Series: 400 Series\u003cbr\u003e• Switch Type: Electromechanical Temperature Switch\u003cbr\u003e• Temperature Range: 0°F to 225°F\u003cbr\u003e• Temperature Range Metric: -17.8°C to 107.2°C\u003cbr\u003e• Function: Temperature Monitoring and Control\u003cbr\u003e• Sensing Method: Liquid-Filled Thermal System\u003cbr\u003e• Temperature Element: Remote Bulb and Capillary Assembly\u003cbr\u003e• Output Contacts: SPDT Snap-Action Switch\u003cbr\u003e• Electrical Rating: 15A @ 125\/250\/480 VAC\u003cbr\u003e• Setpoint Adjustment: Internal Adjustable Setpoint\u003cbr\u003e• Enclosure Type: NEMA 4X Weatherproof Housing\u003cbr\u003e• Housing Material: Epoxy-Coated Die-Cast Aluminum\u003cbr\u003e• Electrical Connection: Conduit Entry\u003cbr\u003e• Suitable for Heating and Cooling Applications\u003cbr\u003e• Designed for Alarm and Shutdown Functions\u003cbr\u003e• Compatible with Boilers, Heat Exchangers, Tanks, and Process Equipment\u003cbr\u003e• Intended for OEM Equipment and Replacement Installations\u003cbr\u003e• Suitable for Maintenance, Retrofit, and Repair Projects\u003cbr\u003e• Engineered for Continuous-Duty Industrial Service\u003c\/p\u003e\n\u003ch3\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp\u003e• United Electric Controls B400-120 Temperature Control\u003cbr\u003e• United Electric Controls B121-120 Temperature Switch\u003cbr\u003e• United Electric Controls C100-120 Temperature Switch\u003c\/p\u003e","brand":"UNITED","offers":[{"title":"New","offer_id":51728569532718,"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_a681dc0a-0031-4926-b056-d006ef15b734.jpg?v=1770586894","url":"https:\/\/plgautomation.com\/products\/united-electric-controls-b402-120-temperature-switch-400-series","provider":"PLG Automation ","version":"1.0","type":"link"}