Microcomputer integrated protection device SDP-5100-A adopts 32 bit microcontroller, which has fashionable appearance, exquisite structure, large screen LCD display and easy operation. And has a powerful function integration: set protection, measurement, control, monitoring, communication, fault recording, event recording and other functions in one. High precision measurement of total electric parameters; Up to 256 online events are recorded, which are not lost after power failure.