Rated current is 125 A continuous. Earth-leakage sensitivity is 300 mA, instantaneous trip. Voltage-independent tripping means the RCD operates without needing a separate power supply — the fault energy itself drives the mechanism. That makes it reliable even if the neutral is lost upstream, a common concern in older installations or temporary supply scenarios. Insulation voltage is 500 V AC. Impulse withstand is 6 kV.
The block is 117 mm wide (7 x 9 mm pitches), 95 mm tall, 73 mm deep, and IP20 rated for finger-safe installation inside an enclosure. Tunnel-type terminals accept 1...50 mm² rigid or 1...35 mm² flexible conductors; tighten to 3.5 N·m. Wire stripping length is 15 mm. Electrical connection to the upstream MCB is by screws — this is a mechanical and electrical add-on, not a standalone device. It occupies the outgoer group or incomer position in the panel.
Designed to EN 61009 and IEC/EN 61009-2-1, with pollution degree 3 per IEC 60947-2.