Rated at 25 A (In) and 300 mA sensitivity, this 1P+N unit is voltage-independent — it trips on residual current regardless of the mains voltage, making it suitable for circuits where voltage may be unstable or where the RCD must operate even with a lost neutral. The Type A-SI (Super Immunised) classification means it handles pulsed DC fault currents (from electronics like VFDs, LED drivers, or UPS) and is immune to nuisance tripping from high-frequency leakage typical of modern switched-mode loads. Instantaneous trip, no intentional delay.
Two 9 mm pitches wide (18 mm total) — the 36 mm width fits two standard modular slots. Clip-on mounting onto a DIN rail, neutral on the left. Tunnel-type terminals accept 1…16 mm² rigid or 1…10 mm² flexible at the bottom; tighten to 2 N·m. Ambient operating range -25…60 °C, storage -40…85 °C, altitude up to 2000 m.