At DC per IEC 60947-2 it holds 15 kA; under UL 1077 and CSA C22.2 No. 235 it's listed at 5 kA, so it carries North American supplemental protection recognition alongside the IEC rating.
D-curve timing and temperature derating
At 45 °C the rated current holds at 1 A; at 50 °C it derates to 0.98 A; at 55 °C to 0.95 A. Above 55 °C the surrounding temperature influence curve drops further: max 95% humidity to 55 °C, max 55% to 70 °C, max 35% to 75 °C. If the panel ambient runs near 60 °C, size up one amp step to stay inside the thermal limit.
Mounting position is any; installation depth is 70 mm.