fixed-mounted circuit breaker 3-pole, size II, IEC In=2500A to 690V, AC50/60Hz Icu=80kA 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 without 1st auxiliary release With 2nd auxiliary release "F", F2 Shunt release 110 V AC/DC 100% on-load factor 4NO+4NC A61= Special packaging for increased transport requirements, for foam packaging carton packaging with wax coating (moisture protection) U01= with label for export to USA