What this RCBO does and why the ratings matter
Rated 20 A (C-curve, thermal-magnetic trip) with 30 mA residual-current sensitivity, it handles both overload/short-circuit protection and personnel/equipment ground-fault protection in a single DIN-rail module. The 30 mA sensitivity is the standard threshold for personal shock protection in wet or socket-outlet circuits per IEC 60364.
Breaking capacity and limitation class
Rated breaking capacity is 10 kA Icn at 220–240 V AC 50 Hz per EN/IEC 61009-2-1, with an ultimate breaking capacity (Icu) of 15 kA per EN/IEC 60947-2. This is the difference between a breaker that merely trips and one that limits damage to the load side.
Clip-on mounting to standard DIN rail (per IEC/EN 60715). Tunnel terminals accept 1 to 35 mm² rigid or 1 to 25 mm² flexible (with ferrule) for top or bottom connection; strip length 12 mm, tighten to 2 N·m. IP40 in a distribution enclosure, IP20 on the terminals. The toggle provides local signalling: ON, OFF, and fault-trip indication.
