Draw-out circuit breaker with slide-in module frame 4-pole, Size 1, IEC In=630 A to 690 V, 50/60 Hz AC Icu=66 kA at 500 V Rear horizontal connection Overcurrent release ETU 45 LSING protection adjustable 0.4-1 in with display and cubicle bus with ground fault protection Opt.: Comm./measuring func./ZSS Motorized/manual operating mechanism with spring charging motor 24-30 V DC Activation 24 V DC With 1st auxiliary release Shunt release "F", F1 24 V DC; 100% ON period With 2nd auxiliary release "R", F3 Undervoltage, instant. 24 V DC 4NO+4NC B04= Rated current reference module 400 A for ETU25, 27, 45, 55, 75, 76 for setting rated current in C20= Spring charge status indicator not possible with option F02 C22= Ready-to-close signaling 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