{"product_id":"siemens-3rs2140-1gd60-digital-thermocouple-monitoring-relay","title":"Siemens 3RS2140-1GD60 Digital Thermocouple Monitoring Relay","description":"\u003cdiv\u003e\u003cp\u003eThe Siemens 3RS2140-1GD60 is a single-input digital thermocouple temperature monitoring relay in the SIRIUS 3RS21 family designed to monitor a single thermocouple sensor and trigger protective or control actions when limits are exceeded. It accepts one thermocouple input of types J, K, E, T, or N, and offers two digitally adjustable threshold values to set high- or low-temperature trip points. The unit is powered from 24 V AC\/DC and has a compact 45 mm-wide DIN-rail footprint with screw terminals. The output comprises two SPDT (changeover) contacts plus an additional normally open contact (2 x 1 CO + 1 NO), enabling signaling and interlocking in a variety of control schemes. When the measured temperature reaches a preset limit ϑ1, the corresponding relay contacts switch state to indicate a trip or fault condition, enabling safe shutdown or process shutdown as part of an automation system. Siemens notes this device is suitable for monitoring temperatures in solids, liquids, and gases and is commonly used to protect equipment or regulate processes in industrial settings.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268102410474,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-017.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-3rs2140-1gd60-digital-thermocouple-monitoring-relay","provider":"GTG Hardware","version":"1.0","type":"link"}