It is rated 25 A with a C-curve trip characteristic and a breaking capacity of 10000 A Icn at 230 V AC 50 Hz, per EN/IEC 61009-2-1. The integrated arc-fault detection meets EN/IEC 62606, meaning it distinguishes series and parallel arcs from normal load current and trips before a sustained arc can ignite surrounding material. The toggle control provides local signalling: ON, OFF, and a fault-trip LED with arc-fault diagnostic.
The 25 A rated current (In) with C-curve means the magnetic trip threshold is 5 to 10 times In — 125 to 250 A instantaneous — sized for motor-starting or transformer inrush on lighting and general-purpose circuits. The limitation class 3 indicates the let-through energy is moderate, so verify coordination with the service entrance breaker. Accuracy for the metering functions (voltage ±2%, current ±2%, power ±5%) is adequate for energy monitoring and fault logging but not for revenue-grade billing. The thermal-magnetic trip unit handles overload and short-circuit; the arc-fault electronics add series and parallel arc detection on top of that.
Pollution degree 2 (non-conductive, occasional condensation) per EN/IEC 62606 covers most indoor panels. Operating altitude up to 2000 m, relative humidity 95% at 55 °C, tropicalisation severity B per IEC 60068-2-30 for 28 days — suitable for coastal or high-humidity environments without conformal coating. Electrical durability 20000 cycles at 230 V AC, mechanical 20000 cycles. Neutral is on the left (1P+N configuration).