SIEMENS 3RB2153-4FW2 – Overload relay | JUAL SIEMENS 3RB2153-4FW2 – Overload relay 50…200 A for motor protection Size S6, CLASS 5…30E Contactor mounting/stand-alone installation Main circuit: straight-through transformer Auxiliary circuit: Screw terminal Manual-Automatic-Reset Internal ground fault detection