fixed-mounted circuit breaker 4-pole, size I, IEC In=630A to 690V, AC50/60Hz Icu=55kA at 500V rear connection horizontal Overcurrent release ETU 25 LSI protection adjustable 0.4-1 in Motorized/manual operating mechanism with spring charging motor AC 50/60 Hz 110-127 V AC or 110-125 V DC Activation 50/60 Hz 110 V AC, 110 V DC With 1st auxiliary release Shunt release "F", F1 50/60 Hz 110 V AC/110 V DC, 100% on-load factor With 2nd auxiliary release "R", F3 Undervoltage, instant. 24 V DC 4NO+4NC B04= Rated current reference module 400 A for ETU25, 27, 45, 55, 75, 76 for setting rated current in C22= Ready-to-close signaling K07= Tripped signaling contact, 1 CO not possible with option F02 S07= Castell/Fortress in Off position with 4 padlocks S55= Mutual mechanical interlocking 2m T40= Door sealing frame