withdrawable circuit breaker without guide frame 4-pole, size II, IEC In=2500A to 690V, AC50/60Hz Icu=66kA at 500V rear connection horizontal 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 50/60 Hz 230 V AC/220 V DC, 100% on-load factor without 2nd auxiliary release 2NO+2NC F23= Internal current converter 4-pole switch BGII R55= Mutual mechanical interlock for switch with frame 2 m S01= CES locking device in Off position Disconnector condition Safe Off/disconnector function