RCBO for final-circuit protection
Rated 20 A at 30 °C, it provides both earth-leakage and short-circuit/overload protection for final circuits in distribution boards.
Thermal derating and installation flexibility
Rated current derates with ambient temperature: 20 A at 30 °C, 18.8 A at 40 °C, 17.4 A at 50 °C, 16.2 A at 55–60 °C, and 14.6 A at 70 °C. In a crowded enclosure or high-ambient panel, size the load circuit to the derated figure at the expected internal temperature. Mounts in any position (vertical, horizontal, inverted) and accepts supply from top or bottom. Installation depth is 70 mm plus the 77 mm overall depth. Touch protection is built in.