Type A residual-current detection (30 mA) handles sinusoidal AC faults plus pulsating DC faults — the kind you get from single-phase rectifiers in washing machines, LED drivers, or small VFDs. The B-Char (B-curve) trips instantaneously between 3 and 5 times In (60–100 A), so it's sized for resistive and lightly inductive loads like lighting, socket outlets, and control transformers where you don't want nuisance tripping from inrush.
Deployment context and panel fit
The 1P+N format switches only the line conductor; the neutral is switched internally by the RCD element but not overcurrent-protected — standard for single-phase final circuits in TN and TT systems. The compact width (roughly 2 modules) leaves room for surge arrestors or metering in the same enclosure.