It carries a 50 kA Icu breaking capacity at 220...440 V AC and 42 kA at 690 V AC, both per IEC 60947-2. The breaker is Category B (selective) per IEC 60947-2, so it coordinates with downstream devices: a short-time withstand rating of 50 kA for 1 second at 440 V lets it ride through a fault long enough for a branch breaker to clear, keeping the main bus live. The 12 kV impulse withstand voltage (Uimp) confirms it handles surge events common in industrial power systems.
Fixed-mount design on a base plate — no draw-out cradle. Rear connections with a 115 mm pitch (without spreader) for vertical or horizontal busbar orientation. Dimensions: 422 mm wide × 352 mm high × 297 mm deep. IP40 protection — tool-accessible openings only; no washdown rating. The push-button control on the front cover gives local open/close/reset without opening the door.