The breaker is rated for 50 A gL/gG at 400 V, with a short-circuit breaking capacity of 100 kA at 400 V, so it can safely interrupt high-fault currents on a 400 V distribution system without needing an upstream current-limiting device.
The 45 mm width and 97 mm depth fit a standard 45 mm-wide DIN slot — no extra side clearance needed beyond 30 mm at the side and 50 mm above/below for ventilation and wiring access.
