Its 50 kA Icu at 220…440 V AC (42 kA at 690 V) means it can safely interrupt fault currents up to that level without upstream cascading — critical for selectivity studies in low-voltage switchgear. It carries IEC 60947-2 certification, which covers the breaking capacity, utilization category B, and the 12 kV impulse withstand voltage (Uimp) that governs clearance and creepage in the panel. The IP40 enclosure keeps tools and fingers out but does not seal against water; mount it in a cabinet if washdown is nearby.
Integration — what fits and what does not
Fixed mounting on a base plate, rear connections with a 115 mm pitch without spreader. The 422 mm width, 352 mm height, and 297 mm depth mean it occupies a full compartment in a typical low-voltage switchboard — plan for a dedicated cubicle. Vertical or horizontal connection orientation is supported, but the rear-entry terminals dictate bus-bar routing behind the panel.
Key electrical ratings at a glance
Rated operational voltage (Ue) is 690 V AC; rated insulation voltage (Ui) is 1000 V AC. Short-time withstand (Icw) is 50 kA for 1 s at 440 V, 42 kA for 1 s at 690 V, and 25 kA for 3 s at 440/690 V, which supports selective coordination with downstream devices. Maximum breaking time is 25 ms; maximum closing response time is 70 ms.