withdrawable circuit breaker with guide frame 4-pole, size I, IEC In=1600A to 690V, AC50/60Hz Icu=66kA at 500V w. connection flange 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 With 1st auxiliary release Shunt release "F", F1 30 V DC, 100% ON period without 2nd auxiliary release 2NO+2NC R21= Shutter 2-part can be locked with bracket lock R55= Mutual mechanical interlock for switch with frame 2 m T40= Door sealing frame