Fixed-mounted circuit breaker 4-pole, size 2 In=4000A to 500V, 50/60Hz AC Icu=66kA at 500V with mechanical lockout device with tripped signaling switch with tripped indicators rear vertical connection on top and bottom Overcurrent release ETU45WT LSIN Setting range according to FS Basic functions with LC display with display With manual operating mechanism with memory with mechanical calling without 1st auxiliary release without 2nd auxiliary release With door sealing frame with sealing cap against unauthorized switching off