R-board front three-point fixed installation, with a center distance of 126-141mm between the upper and lower mounting holes, which can be adjusted by the user and complies with BS 7856 and DIN 43857 standards.

R can be displayed on a 5+1-bit (99999.1kWh) stepper motor pulse counter or a 6+1-bit (999999.1kWh) LCD display.

R optional built-in maintenance free lithium battery, used for power outage LCD display reading.

The R configuration has a polarized passive power pulse output port that complies with IEC 62053-31 and DIN 43864 standards.

The R LED indicates the power status (green) and the power pulse signal (red).

R automatically detects the direction of load current flow and is indicated by LED.

R can measure single-phase two wire or single-phase three wire active energy consumption in a single direction, regardless of the direction of load current flow, in accordance with IEC 62053-21 standard.

R is directly connected for use. There are two wiring options for single-phase two-wire instruments: 1A type wiring and 1B type wiring. The wiring option for single-phase three wire instruments is 2A type.

R has two options: extended terminal cover and short terminal cover.