It protects a single-phase outgoing circuit against overload, short-circuit (Curve C, magnetic trip 5...10 x In), and ground faults in TN earthing systems. Rated 20 A with a breaking capacity of 10 kA Icn at 230/240 V AC 50 Hz, it clears faults up to that level without cascading upstream. The 30 mA sensitivity catches leakage currents that could be hazardous to personnel — standard for socket-outlet and general-purpose final circuits under AS/NZS 61009.1.
Occupies a single modular position in a distribution board — important when fill factor is tight. Neutral is on the left, which sets the busbar orientation. IP20 finger-safe front; suitable for enclosed panels only, not washdown environments.
