3ru21161gb0

Class S00 2.2-3.2 A overload relay is a thermal relay for electric motor protection, designed to trip when the motor draws too much current or in case of phase failure, preventing overheating and damage. In the model that matches this description, it is the Siemens SIRIUS 3RU21161DB0, with control range 2.2-3.2 A, size S00, trip class 10 and direct contactor mounting.