Breaking capacity — the number that decides coordination
At 400 V AC this breaker is rated 100 kA — that is the interrupting capacity, not the continuous current. At 240 V it is also 100 kA; at 500 V it drops to 42 kA; at 690 V it is 4 kA. For most 400 V industrial panels fed by a 1 MVA transformer, 100 kA gives comfortable SCCR headroom without needing a current-limiting upstream fuse.
Mounting and wiring — panel-fit details
That is a spring cage, not a screw clamp; strip length and ferrule use matter for consistent pull-out force. Mounting position is any, so vertical or horizontal panel layouts work. Clearance requirements: 50 mm above and below, 30 mm to the sides, zero forward or backward.
