Single-three phase counter / energy analyzer (up to 3 single-phase lines). Backlit blue/white graphic LCD display. Measurement of the THD of voltage and current, neutral current, maximum and minimum voltage, maximum power and current, active energy of each phase. Phase sequence indication. 4 load operating time counters. 1 calibration LED. Firmware update remotely. RS485 port. Size: 4 DIN rail modules. Power supply 230-240Vac. Complies with: EN 50470-1 + EN 50470-3.