Draw-out circuit breaker with slide-in module frame 4-pole, Size 1, IEC In=1600 A up to 690 V, 50/60 Hz AC Icu=66 kA at 500 V Rear vertical connection Overcurrent release ETU 27 LSING protection adjustable 0.4-1 in Ground fault/N protection integrated 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 R10= Arc chute cover On not possible with option A05 Rated voltage 1000 V R21= Shutter 2-part can be locked with bracket lock S05= Castell/Fortress locking device in Off position Disconnector condition Safe Off/disconnector function T40= Door sealing frame