fixed-mounted circuit breaker 3-pole, size II, IEC In=1600A to 690V, AC50/60Hz Icu=80kA at 500V rear connection vertical Overcurrent release ETU 15 LI protection adjustable 0.5-1 in With manual operating mechanism with storage with mechanical request With 1st auxiliary release Shunt release "F", F1 50/60 Hz 230 V AC/220 V DC, 100% on-load factor With 2nd auxiliary release "RC", F4 Undervoltage, Delay 0.2-3.2s 208-240 V AC, 220-250 V DC, 100% ED 2NO+2NC S33= Castell/Fortress Tension lever