Draw-out circuit breaker with slide-in module frame 4-pole, Size 1, IEC In=1250 A up to 690 V, 50/60 Hz AC Icu=66 kA at 500 V Rear vertical connection Overcurrent release ETU45 LSIN protection adjustable 0.4-1 in with display and 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 F23= Internal current transformers 4-pole switch BGI R21= Shutter 2-part can be locked with bracket lock T40= Door sealing frame