withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1250A to 690V, AC50/60Hz Icu=66kA at 500V rear connection vertical Overcurrent release ETU 45 LSIN protection adjustable 0.4-1 in with cubicle bus Opt.: Comm. /measuring func./ground fault/ ZSS With manual operating mechanism with storage with mechanical request With 1st auxiliary release Shunt release "F", F1 30 V DC, 100% ON period without 2nd auxiliary release 2NO+2NC F23= Internal current transformers 4-pole switch BGI K07= Tripped signaling contact, 1 CO not possible with option F02 R21= Shutter 2-part can be locked with bracket lock R30= Locking device against opening of the Control cabinet door S05= Castell/Fortress locking device in Off position Disconnector condition Safe Off/disconnector function T40= Door sealing frame