fixed-mounted circuit breaker 3-pole, size I, IEC In=630A to 690V, AC50/60Hz Icu=55kA at 500V rear connection vertical Overcurrent release ETU45 LSIN protection adjustable 0.4-1 in with display and cubicle bus Opt.: Comm. /measuring func./ground fault/ ZSS With manual operating mechanism with storage with mechanical request without 1st auxiliary release without 2nd auxiliary release 2NO+2NC B05= Rated current reference module 500 A for ETU25, 27, 45, 55, 75, 76 for setting rated current in F02= COM15-PROFIBUS module with breaker status sensor F40= Sealing disc for ETU25-76 for protection against unauthorized operation N61= Cage spring connections for auxiliary S24= EMERGENCY-STOP switch S33= Locking device Tension lever T40= Door sealing frame