The interrupting capacity reaches 75.6 kA at 240 V and 52.5 kA at 415 V, giving it headroom for high-fault industrial feeds where a standard MCB would weld shut.
The 16 A rating holds steady from 40 °C up to 55 °C, then derates to 15 A at 60 °C and above. That means in a warm cabinet — say a curing-press control panel — you don't lose capacity until the ambient hits 60 °C. The 4-pole design handles three-phase plus neutral, common for 400 V three-phase distribution where the neutral needs protection. Power loss is 10.6 W maximum, which matters for thermal budgeting in a sealed enclosure. Interrupting capacity is voltage-dependent: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V and 690 V. The front panel carries IP40 protection, so it's fine for dry indoor panels but not washdown zones.
Verify the busbar pitch matches your distribution block before committing the cutout.