withdrawable circuit breaker with guide frame 3-pole, size II, IEC In=4000A to 690V, AC50/60Hz Icu=66kA at 500V rear connection vertical Overcurrent release ETU 45 LSIN protection adjustable 0.4-1 in with cubicle bus Opt.: Comm. /measuring func./ground fault/ ZSS Motorized/manual operating mechanism with spring charging motor 24-30 V DC Activation 24 V DC With 1st auxiliary release Shunt release "F", F1 24 V DC; 100% ON period With 2nd auxiliary release "R", F3 Undervoltage, instant. 24 V DC 4NO+4NC A61= Special packaging for increased transport requirements, for foam packaging carton packaging with wax coating (moisture protection) T40= Door sealing frame U01= with label for export to USA