What this MCCB does for your line
It carries 242 kA breaking capacity at 240 V, dropping to 187 kA at 415 V and 440 V, then 121 kA at 500 V — still 5 kA at 690 V. That means it clears high-fault scenarios downstream of a large transformer or bus riser without cascading upstream breakers. For a molding cell or conveyor line where you need to coordinate with downstream motor starters and avoid nuisance trips on inrush, that adjustability is the difference between a clean trip and a line-down event.
That gives you separate dry contacts for remote status, trip indication, and a dedicated alarm — no need to add a separate signal block for most panels. The shunt trip release (STL) is integrated as the auxiliary release design — wired separately, it lets a remote E-stop or PLC output trip the breaker without a mechanical linkage.
Thermal derating — what the numbers mean
At 55 °C it derates to 60.6 A, at 60 °C to 58.3 A, at 65 °C to 55.9 A, and at 70 °C to 53.6 A.