It monitors for series and parallel arcing faults per EN/IEC 62606 while providing 30 mA earth-leakage protection per EN/IEC 61009-1 and -2-1. The unit integrates overvoltage, earth-leakage, and overload event management with local signalling via ON/OFF/fault-trip LED and an arc-fault diagnostic indicator.
Rated at 25 A (In) on a 230 V AC, 50 Hz network, this device is sized for a final subcircuit supplying a single branch — lighting, socket outlets, or fixed equipment within that current envelope. The 30 mA earth-leakage sensitivity (Type A-SI, Super Immunised) makes it suitable for circuits where nuisance tripping from high-frequency leakage or pulsed DC fault currents is a concern; the SI designation indicates a higher immunity to transient surges than standard Type A. The overvoltage trip threshold is set at 275 V ±5 V, which protects downstream equipment if a neutral loss or supply swell pushes the phase voltage above that level. Measurement accuracy is ±2 % for voltage and current, ±5 % for active power — adequate for energy monitoring and fault logging via the EcoStruxure Panel Server concentrators (Entry, Advanced, or Universal). Electrical durability is rated at 20,000 cycles at or below 25 A, and 10,000 cycles above 25 A; mechanical durability is 20,000 cycles. These figures govern the expected service life under normal switching duty — not fault interruption, which is covered by the short-circuit breaking capacity of the upstream MCB.
Neutral is on the left. Tunnel-type terminals accept 1–10 mm² flexible or 1–16 mm² rigid conductors; tighten to 2 N·m with a 14 mm strip length. IP20 rated — suitable for dry indoor enclosures only.
Compliant with EN/IEC 62606 (arc fault detection devices), EN/IEC 61009-1 (RCBOs general rules), and EN/IEC 61009-2-1 (RCBOs functional independence). Carries the IMQ quality mark. Tropicalisation severity B per IEC 60068-2-30 for 28 days. Pollution degree 2. Operating altitude limited to 2000 m.