The Bently Nevada 3500/32-01-00 149986-02 4-channel relay module is an industrial grade module optimized for harsh working conditions, perfectly matched with the 3500 mechanical protection system. Using 4 independent high-performance relay channels, reliable control output, integrated overvoltage protection, and extended module lifespan. It has excellent anti electromagnetic interference and anti vibration performance, suitable for high-temperature industrial sites such as power plants and refineries, supports real-time status feedback, and maintains stable relay action to support the safety protection of rotating machinery.