Breaking capacity and approvals
Rated breaking capacity hits 10 kA per EN 60898, 35 kA per IEC 60947-2, 15 kA at DC per IEC 60947-2, and 5 kA per UL 1077 and CSA C22.2 No. 235 — so it covers both residential-panel and industrial-distribution fault levels, plus DC circuits in control panels or battery-backed loads.
Thermal derating and environment
At 35 °C the breaker holds its full 0.5 A rating; at 45 °C it derates to 0.45 A, at 50 °C to 0.44 A, at 55 °C to 0.42 A, and at 60 °C to 0.4 A. Ambient range spans -40 °C to 75 °C, with humidity limits of 95 % up to 55 °C, 55 % up to 70 °C, and 35 % up to 75 °C. That wide range fits unheated enclosures or outdoor cabinets.