Fixed-mounted circuit breaker IEC 60947-2, frame size 3, 4-poles, N-pole left, In=4000A up to 690V AC 50/60Hz, breaking capacity C Icu=130kA at 690V, Trip unit ETU300 LSIG optimized for standard applica- tions, without display Protection LT, ST, INST, GF, include N-protection, (internal N-sensor available), incl. trip alarm switch (1xCO), rear connection, vertical top horizontal bottom,