The 10 kA breaking capacity, certified to both EN 60898 and IEC 60947-2, tells you it can safely interrupt a fault current up to 10 kA at 400 V without welding contacts or cascading damage upstream. That dual-standard rating covers both residential (EN 60898) and industrial (IEC 60947-2) installations, so the same part works in a distribution board or a control panel. Rated for 50/60 Hz, it handles both common line frequencies without derating. The 72 V DC maximum rating on each pole means it can also be used in DC circuits up to that voltage, though the DC breaking capacity is not separately listed — for DC applications, verify the prospective fault current is within the 10 kA AC rating's equivalent.
Snap-on DIN rail mounting, any position — no orientation restrictions. The 72 mm width (4 modular units at 18 mm each) occupies four slots on a standard DIN-rail enclosure. Installation depth is 70 mm, with an overall depth of 76 mm including the front projection. Sealable, halogen-free, and silicon-free construction meets the material restrictions common in clean manufacturing environments and food-grade panels.