fixed-mounted circuit breaker 4-pole, size II, IEC In=2000A to 690V, AC50/60Hz Icu=66kA at 500V rear connection horizontal 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 F23= Internal current converter 4-pole switch BGII N61= Cage spring connections for auxiliary S30 = LOCKING DEVICE AGAINST OP. S33= Castell/Fortress Tension lever T40= Door sealing frame