fixed-mounted non-automatic air circuit breakers 4-pole, frame size 0, IEC N conductor on the right In=1000A to 690V, 50/60Hz ac Icu=55kA at 415V Icu=50kA at 500V Icu=42kA at 690V without electronic trip units with rtc and 4Aux aux switches circ. conductor conn. pc for cual cables, front maine