withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1600A to 690V, AC50/60Hz Icu=55kA at 500V rear connection horizontal 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 without 1st auxiliary release without 2nd auxiliary release 2NO+2NC A08= Tin plating of customer terminals in slide-in unit frame for horizontal connection or flange connection F23= Internal current transformers 4-pole switch BGI R21= Shutter 2-part can be locked with bracket lock T40= Door sealing frame