fixed-mounted circuit breaker 4-pole, size II, IEC In=2000A to 690V, AC50/60Hz Icu=80kA at 500V frnt.conn. top/bot. dual-hole 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 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 F23= Internal current converter 4-pole switch BGII S07= Castell/Fortress in Off position with 4 padlocks T40= Door sealing frame