MD72WD is a high-capacity lightning arrester with a discharge current of 20kA (8/20μs) and 1kA (10/350μs). It is only 7mm thick and is suitable for multiple protection. It can protect two-wire transmission lines and the input and output of electronic devices.
The MD72WD is a thin (7 mm) dual‑channel lightning arrester designed for protecting 2‑wire signal lines and electronic equipment I/O. It offers ultra‑high discharge currents of 20 kA (8/20 µs) and 1 kA (10/350 µs) and complies with CE and intrinsic safety (ATEX) standards. Installation is via a metal DIN‑rail clamp with grounding, using European screw terminals that accept 0.2–2.5 mm² wires. The device is housed in a black flame‑resistant resin case (IP20) and weighs about 70 g. This manual is written in Japanese.
| Discharge current | 20 kA (8/20 µs) and 1 kA (10/350 µs) |
|---|---|
| Thickness | 7 mm |
| Weight | ≈70 g |
| Terminal wire size | 0.2 mm² – 2.5 mm² |
| Protection class | IP20 |
| Operating temperature (no certification) | -25 °C to +85 °C |
| Installation method | DIN‑rail mounting |
| Connection type | European screw terminals (torque 0.3 N·m) |
| Housing material | Black flame‑resistant resin |
It can handle discharge currents of 20 kA (8/20 µs) and 1 kA (10/350 µs).
The device is mounted on a DIN rail using a metal clamp that also provides grounding.
The allowed temperature range is –25 °C to +85 °C.
Terminals accept wires from 0.2 mm² up to 2.5 mm².