Its breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 187 kA figure at 240 V means it can safely interrupt a fault current that high without cascading damage upstream, which is critical for high-fault installations like large transformer secondaries or busway taps.
At 105 mm wide, 181 mm tall, and 86 mm deep, this MCCB occupies a standard 3-pole molded-case footprint and mounts directly onto a DIN rail or panel plate — the 86 mm depth is the dimension you need to clear when planning gland-plate clearance or enclosure depth.
What the auxiliary switch complement means
No undervoltage release and no ground-fault monitoring are included — if your application requires undervoltage protection or GFCI, you would need a different variant or an add-on module.