The ABB EF370‑380 is a self-supplied electronic overload relay designed for motor protection against overload and phase failure. It provides reliable and fast protection similar to traditional thermal overload relays but with enhanced accuracy and adjustable settings. The relay features a wide current adjustment range and selectable trip class options to suit various industrial motor applications. It can be directly mounted on compatible contactors and offers temperature compensation, automatic/manual reset, and clear trip status indication.
