Fixed-mounted circuit breaker, UL1066/IEC60947-2, FS 2, 3-poles, In=2000A up to 635V AC 50/60Hz, breaking capacity H, 100/85kA at 508/635V AC, Trip unit ETU600 LSI upgrade ready , color display, USB and optional bluetooth, Protection LT, ST, INST, N-protection requires an external N-sensor, incl. trip/bell alarm (1xCO), front connection double hole