{"product_id":"siemens-3ru2126-4bb0-thermal-overload-relay-module","title":"Siemens 3RU2126-4BB0 Thermal Overload Relay Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens Sirius 3RU2126-4BB0 is a thermal overload relay designed for motor protection, sized for S0 mounting and compatible with Siemens 3RU2 contactors. It provides current-dependent overload protection for motors in the 14 to 20 A range and includes a manual-automatic reset with auxiliary contacts (1NO + 1NC) for status signaling; main circuit and auxiliary circuit use screw terminals. The device offers front IP20 protection, insulation voltage up to 690 V, and a typical power loss of 6.2 W, with an operating temperature range of -40 to +70 C and up to 90% relative humidity during operation. This overload relay is intended to be mounted on a compatible contactor and is part of the Sirius motor-protection line for reliable thermal protection of three-phase motors.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268125315306,"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-3ru2126-4bb0-thermal-overload-relay-module","provider":"GTG Hardware","version":"1.0","type":"link"}