A digital fault recorder and a programmable logical controller, and provided with a wide range of digital IO and communication options. A high-contrast graphical LCD display with backlight allows easy local meter readings and servicing.Digital Fault Recorder (onboard fault detector - programmable fault thresholds and hysteresis, up to 50 Amps fault currents, zero-sequence currents and volts, current and volt unbalance; under voltage, neutral current; ready-for-use fault reports - fault currents magnitude and duration, coincident volts magnitude, fault waveforms and RMS trace)