Features

• CE, UL, CSA. Solid State Overload Relay - 3RB range. 3RB30 and 3RB31 solid-state overload relays up to 80 A with internal power supply have been designed for current-sensitive protection of loads with normal and heavy starting against excessive temperature rises due to overload, phase unbalance or phase failure. Switch position indicator and test function Trip class setting/internal ground-fault detection Selector switch for manual/automatic reset Class 10 and Class 20 Direct mounting PTB 09 ATEX 3001 Ex II (2) GD