withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1250A to 690V, AC50/60Hz Icu=55kA at 500V rear connection horizontal Overcurrent release ETU45 LSIN protection adjustable 0.4-1 in with display and cubicle bus Opt.: Comm. /measuring func./ground fault/ ZSS 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 "F", F2 Shunt release 110 V AC/DC 100% on-load factor 4NO+4NC K07= Tripped signaling contact, 1 CO not possible with option F02 K12= Remote reset solenoid 120 V AC/125 V DC R16= Position signaling switch, withdrawable part 6 changeover contacts R21= Shutter 2-part can be locked with bracket lock T40= Door sealing frame