The 20 A rated current (In) and C-curve mean this RCBO handles moderate inrush loads — lighting strings, small motor starters, or mixed socket circuits — without nuisance tripping on startup. Breaking capacity is 6000 A Icn at 380...415 V AC, 50/60 Hz, per EN/IEC 61009-2-1. That's the standard domestic and light commercial fault level — adequate for most distribution boards downstream of a main switch or upstream MCCB. The 30 mA earth-leakage sensitivity provides personal protection against direct contact. Integrated RCD means no separate residual-current block — one module, one DIN position, one wiring step.
Clip-on mounting to a standard DIN rail (EN 60715). The 3P+N unit occupies 10 x 9 mm pitches — 90 mm width total. Neutral is on the left, phase connections on the right, with an 18 mm pitch between phases and 9 mm between phase and neutral. Tunnel terminals accept 0.75...16 mm² rigid or 0.33...10 mm² flexible (with or without ferrule). IP20 on the device body (finger-safe), IP40 inside the modular enclosure. Tropicalisation level 2 per IEC 60068-1 handles 90 % RH at 55 °C, so it's fine for non-condensing humid conditions like pump rooms or coastal plant rooms.