withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1000A to 690V, AC50/60Hz Icu=55kA at 500V rear connection vertical Overcurrent release ETU 45 LSING protection adjustable 0.4-1 in with cubicle bus and Ground fault protection Opt.: Comm./measuring func./ZSS With manual operating mechanism with storage with mechanical request without 1st auxiliary release 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