RCBO for combined overcurrent and residual current protection
The 18 mm width (one modular unit) fits standard DIN-rail distribution boards, and the supply can enter from either top or bottom — no orientation restriction during panel build. At 13 A rated current this RCBO suits 2.5 mm² copper final circuits feeding socket outlets, lighting, or small appliances up to about 3 kW on a 230 V single-phase supply.
Temperature derating and installation conditions
At 40 °C it derates to 12.35 A, at 50 °C to 11.57 A, and at 60 °C to 10.79 A — a roughly 17 % drop from the nominal at the upper end of the operating range.
