The integrated earth-leakage protection trips at 100 mA sensitivity, which is a common setting for general-purpose socket circuits and small distribution boards where 30 mA is not mandated. The thermal-magnetic trip unit is the workhorse here: the thermal bimetal protects against sustained overloads, and the solenoid clears short-circuits. With a C-curve, the magnetic threshold sits at 5–10× In, so for a 13 A breaker that means instantaneous trip between 65 A and 130 A. That is a good match for circuits feeding small pumps, fans, or groups of LED drivers where the startup surge is noticeable but not extreme.
Clip-on mounting to DIN rail, 4 module pitches wide (36 mm per pitch). Neutral is on the left, phase on the right — standard for Acti9 1P+N RCBOs. The toggle gives local ON/OFF and fault-trip indication, so a quick visual scan of the board tells you which circuit has tripped on earth leakage vs overcurrent. Strip length is 15 mm. IP20 on the body, IP40 inside the modular enclosure — fine for a clean indoor distribution board, not for washdown areas.
Limitation class 3 per that standard, meaning it limits let-through energy well — good for downstream equipment protection. Pollution degree 3, overvoltage category III, tropicalisation level 2 per IEC 60068-1 (handles 95% RH at 55 °C). The 20,000-cycle electrical and mechanical durability is typical for this class; it is not a high-endurance industrial contactor, but it is fine for normal switching duty in a distribution board.