Fixed-mounted circuit breaker IEC 60947-2, frame size 1, 3-poles, In=1000A, breaking capacity E, up to 1000V AC 50/60Hz, Icu=85/50kA at 690/1000V, Trip unit ETU300 LSIG optimized for standard applica- tions, without display Protection LT, ST, INST, GF, N-protection required an external N-sensor, incl. trip alarm switch (1xCO), rear connection, horizontal top vertical bottom,