Breaking capacity — what it handles when things go wrong
Rated 10 kA per EN 60898, 20 kA per IEC 60947-2, and 15 kA at DC per IEC 60947-2. The DC rating covers battery-backed control circuits common in mining substations.
Thermal derating — don't ignore the fine print
At 35 °C it carries the full 16 A. At 40 °C that drops to 15.23 A, at 50 °C to 14.43 A, and at 60 °C to 13.57 A. If you're packing this breaker into a dense DIN-rail enclosure next to contactors and drives running at 50 °C internal ambient, you need to size the load at 14.43 A, not 16 A.
