SIEMENS 3RB2163-4GF2 – Overload relay | JUAL SIEMENS 3RB2163-4GF2 – Overload relay 55…250 A for motor protection Size S10/S12, CLASS 5…30E Contactor mounting/stand-alone installation Main circuit: busbar connection Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset Internal ground fault detection