withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=800A to 690V, AC50/60Hz Icu=55kA at 500V rear connection horizontal Overcurrent release ETU 45 LSING protection adjustable 0.4-1 in with cubicle bus and Ground fault protection Opt.: Comm./measuring func./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 30 V DC, 100% ON period without 2nd auxiliary release 2NO+2NC R21= Shutter 2-part can be locked with bracket lock R55= Mutual mechanical interlock for switch with frame 2 m T40= Door sealing frame