{"product_id":"siemens-thermister-motor-protector-3rn1012-1ck00-3rn10121ck00","title":"Siemens 3RN1012-1CK00 Thermistor Motor Protector","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3RN1012-1CK00 Thermistor Motor Protector is a thermistor-based motor protection relay (standard evaluation unit) designed to guard electric motors by monitoring winding temperature via an external thermistor and tripping the circuit when overheating is detected. It supports Manual, Auto, and Remote operation modes and provides one normally open and one normally closed contact for control signaling. The unit is powered from a 230\/110 V AC control supply and wired through screw terminals, making it compatible with common Siemens motor-control panels and starters. As a phased-out model, Siemens lists the 3RN1012-1CK00 with the preferred successor 3RN2012-1BW30, offering a modern, equivalent thermistor motor protection solution for similar applications in motor protection schemes.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268100411626,"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-thermister-motor-protector-3rn1012-1ck00-3rn10121ck00","provider":"GTG Hardware","version":"1.0","type":"link"}