Schneider ATV320U55N4B is a compact book-type variable speed drive from the Altivar Machine ATV320 series, specially optimized for standard mechanical automation applications. This 3-phase 380~500V heavy-duty VFD supports asynchronous motors, permanent magnet synchronous motors and synchronous reluctance motors. It features IP20 protection, built-in braking chopper and integrated C2 EMC filter, equipped with complete STO, SS1, SLS safety functions. Adopting anti-corrosion coated PCB design, it delivers stable high-overload performance, perfectly matching light industrial automation equipment such as small conveyors, fans and pumps.