Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — those numbers tell you it's built for high-fault panels where a standard MCB would weld shut.
Panel fit and derating reality
At 70 mm deep, 76.2 mm wide, and 130 mm tall, this MCCB fits a standard 3-pole footprint on a DIN rail or panel-mount base. The front face is IP40 — fine inside a closed cabinet, not for washdown. The derating table matters: it holds 16 A flat from 40 °C to 50 °C, then drops to 15.36 A at 55 °C, 15.04 A at 60 °C, 14.72 A at 65 °C, and 14.4 A at 70 °C.