withdrawable circuit breaker with guide frame 3-pole, size II, IEC In=1600A to 690V, AC50/60Hz Icu=66kA at 500V rear connection horizontal Overcurrent release ETU 45 LSIN protection adjustable 0.4-1 in with cubicle bus Opt.: Comm. /measuring func./ground fault/ ZSS With manual operating mechanism with storage with mechanical request 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 2NO+2NC K07= Tripped signaling contact, 1 CO not possible with option F02 R21= Shutter 2-part can be locked with padlock