It combines a Type C thermal-magnetic trip curve with ground-fault detection in a single 18 mm modular-width unit — one pole protected, the neutral switched but not protected. Rated 4 A at 30 °C and 230 V AC, 50 Hz, it's sized for lighting circuits, small motor loads, or control transformers where you need both short-circuit and earth-leakage protection in one DIN-rail slot. The RCBO itself is instantaneous-trip (no time delay on the residual side), meaning it clears ground faults in under 40 ms, which keeps the shock risk low and meets the disconnection times in IEC 60364. Breaking capacity is 4.5 kA per EN 60898 and 5 kA per IEC 60947-2 — enough for most final sub-circuits in a 230/400 V distribution board.
Deployment and panel integration
The IP20 rating holds only when the distribution board is installed and conductors are connected; treat it as a panel-internal device, not for wet-area standalone use. Temperature derating is published across the range: 4 A at 30 °C, 3.8 A at 40 °C, 3.6 A at 50 °C, 3.4 A at 60 °C, and 3.2 A at 70 °C. If this RCBO sits in a sealed, sun-loaded cabinet, the 40 °C or 50 °C column is the one that governs the load you can actually protect.