Fixed-mounted circuit breaker, IEC 60947-2, size 1, 3-pole, In=4000 A up to 690 V AC 50/60 Hz, breaking capacity M Icu=85/66 kA at 500/690 V, tripping unit ETU300 LSI optimized for standard applications, without display, basic protection LT, ST, INST, neutral conductor protection requires an external neutral point current sensor, trip alarm switch (1 x CO), connection at rear horizontal without Com & metering function Manual operating mechanism with mechanical closing, without Spring charging motor, Ready-to-close signal. switch, Auxiliary switches 2NO+2NC, without Closing coil (CC), manual operating mechanism with mechanical closing, without Remote trip alarm reset coil (RR), without 2nd shunt trip, without 1st Shunt trip