It breaks 10 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No. 235 — the UL figure tells you it's accepted in North American panels, not just European.
Fit and integration
Combined terminals top and bottom — spring-cage or screw, both accept the same wire range. IP20 with conductors connected, so it's fine inside a closed panel but not for wet locations.
Thermal derating and environment
Rated 4 A at 35 °C ambient. Derate to 3.81 A at 40 °C, 3.71 A at 45 °C, 3.61 A at 50 °C, and 3.51 A at 55 °C. Operating range is -40 to 75 °C, so cold storage or outdoor enclosures are fine. Humidity limit: 95 % up to 55 °C, tapering to 35 % at 75 °C.