It carries a 25 A rated current at 30 °C ambient with a C tripping characteristic, and a 4.5 kA breaking capacity per both EN 60898 and IEC 60947-2. The fault current type is A, meaning it detects sinusoidal AC residual currents plus pulsating DC residual currents up to 6 mA of smooth DC superimposed — the standard choice for circuits with single-phase rectified loads like switching power supplies or LED drivers.
Thermal derating and ambient limits
At 40 °C it derates to 23.75 A, at 45 °C to 23 A, at 50 °C to 22.25 A, and at 55 °C to 21.5 A. The maximum ambient operating temperature is 40 °C per the spec, but the derating curve lets you push into higher-temperature enclosures if you downrate the continuous load accordingly. Storage range is -40 to +75 °C.
Width is 18 mm (1 width unit), depth 77 mm, installation depth 70 mm. Supply can enter from either top or bottom — no orientation constraint. Protection class is IP20 once installed in a distribution board with conductors connected.