fixed-mounted circuit breaker approved to UL489 3-pole, BG II, In=2500A AC 50/60 Hz, IEC: to 690V, 100kA at 440V ul: to 600V, 100kA at 480V rear connection horizontal 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 AC 50/60 Hz 110-127 V AC or 110-125 V DC Activation 50/60 Hz 110 V AC, 110 V DC With 1st auxiliary release Shunt release "F", F1 50/60 Hz 110 V AC/110 V DC, 100% on-load factor With 2nd auxiliary release "R", F3 Undervoltage, instant. 110-127 V AC, 110-125 V DC 2NO+2NC K07= Tripped signaling contact, 1 CO not possible with option F02 S07= Locking device, in Off position M, 4 Bracket lock, (Safe Off/disconnector function) Disconnector condition in compliance with IEC 60947-2