It's a 3-pole device built to EN/IEC 60947-2, suited for distribution and motor branch-circuit protection in industrial panels. Breaking capacity is the headline here: 85 kA Icu at 500 V AC, 80 kA at 525 V, and 75 kA at 660/690 V. That HB1 rating means it handles high-fault scenarios without cascading upstream — a key spec for large MCCs or transformer-fed switchboards where available fault current runs high. The thermal-magnetic trip gives L (overload) and I (short-circuit) protection in one unit — no separate relay or CTs needed.
Integration notes
Panel builders: the 105 mm width, 161 mm height, and 86 mm depth fit standard backplate layouts. IP40 enclosure rating means it's for indoor, dry locations — not washdown. Mechanical durability is 20,000 cycles; electrical durability varies by voltage and load — 20,000 cycles at 440 V at half rated current, 10,000 at full rated current. That's typical for a distribution-grade MCCB; for frequent switching duty, factor in the lower cycle count at full load.