fixed-mounted circuit breaker approved to UL489 3-pole, BG I, In=1600A AC 50/60 Hz, IEC: to 690V, 65kA at 440V ul: to 600y/ 347, 65kA at 480V 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 AC 50/60 Hz 208-240 V or 220-250 V DC Activation AC 50/60 Hz 230 V, 220 V DC With 1st auxiliary release Shunt release "F", F1 50/60 Hz 230 V AC/220 V DC, 100% on-load factor without 2nd auxiliary release 2NO+2NC C22= Ready indicator K07= Tripped signaling contact, 1 CO not possible with option F02