Fixed-mounted circuit breaker IEC 60947-2, frame size 1, 4-poles, N-pole left, In=1600A up to 690V AC 50/60Hz, breaking capacity N Icu=55/42kA at 500/690V, Trip unit ETU600 LSI upgrade ready , colordisplay, bluetooth and USB interface, Protection LT, ST, INST, include N-protection, (internal N-sensor available), incl. Trip alarm switch (1xCO), rear connection horizontal, able to communication, 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