fixed-mounted circuit breaker 4-pole, size I, IEC In=2000A to 690V, AC50/60Hz Icu=55kA at 500V rear connection vertical Overcurrent release ETU 27 LSING protection adjustable 0.4-1 in Ground fault/N protection integrated With manual operating mechanism with storage with mechanical request without 1st auxiliary release With 2nd auxiliary release "R", F3 Undervoltage, instant. 208-240 V AC, 220-250 V DC 2NO+2NC F23= Internal current transformers 4-pole switch BGI T40= Door sealing frame