withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=2000A to 690V, AC50/60Hz Icu=66kA at 500V rear connection horizontal Overcurrent release ETU 45 LSING protection adjustable 0.4-1 in with cubicle bus and 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 2NO+2NC F23= Internal current transformers 4-pole switch BGI K07= Tripped signaling contact, 1 CO not possible with option F02 R10= Arc chute cover On not possible with option A05 Rated voltage 1000 V R16= Position signaling switch, withdrawable part 6 changeover contacts R21= Shutter 2-part can be locked with bracket lock