withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1600A to 690V, AC50/60Hz Icu=66kA at 500V rear connection vertical Overcurrent release ETU 25 LSI protection adjustable 0.4-1 in With manual operating mechanism with storage with mechanical request without 1st auxiliary release without 2nd auxiliary release 2NO+2NC R10= Arc chute cover On not possible with option A05 Rated voltage 1000 V R21= Shutter 2-part can be locked with bracket lock T40= Door sealing frame