Rated at 25 A with a C-curve magnetic trip characteristic (5 to 10 times In), it breaks up to 10,000 A at 240 V AC per AS/NZS 61009.1. The integrated earth-leakage protection means one device covers both the MCB and RCD functions — saves a DIN rail slot and simplifies wiring in a distribution board.
The 25 A rating and C-curve suit general-purpose final subcircuits with moderate inrush — lighting banks, small motor loads, socket outlets. The thermal-magnetic trip unit gives a time-delayed overload response (thermal bimetal) and instantaneous magnetic trip on short-circuit; the C-curve's 5–10x In window avoids nuisance tripping on typical motor or capacitor-switching inrush. Integrated earth-leakage protection is rated per EN/IEC 62606 and AS/NZS 61009.1 — the same standards that cover RCBOs and residual current devices. The limitation class is 3 per AS/NZS 61009.1, which governs the energy let-through under fault conditions.
