Fixed circuit breaker, IEC 60947-2, size 1, 3 poles, In=1000A up to 690V AC 50/60Hz, closing/breaking power N Icu=55/42kA at 500/690V, decl. electro. ETU600 LSI upgradeable, color display, Bluetooth, USB interface, prot. basic LT, ST, INST, neutral conductor protection requires external N-current sensor, contact sign. tripped (1xINV), connection. rear, from the top vertic., from the bottom horiz. without communication, witho