R board front three-point fixed installation, with a center distance of 198-212mm between the upper and lower mounting holes that can be adjusted by the user. The appearance and installation dimensions comply with BS 7856 and DIN 43857 standards.

R can be displayed on a 6-digit (9999999kWh) stepper motor pulse counter, or on a 6+1-bit (999999.1kWh) LCD display.

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

R can be used with either direct access or CT access.

The R CT connected instrument can be selected from two types of instruments: indirect reading or direct reading. The direct reading CT connected instrument can set 27 CT ratios. After setting, the instrument will read directly without multiplying by the CT ratio.

The R direct reading CT access instrument is displayed on a 5+2-digit (CT ratio 5:5A only) or 7-digit integer LCD, selected by the set CT ratio.

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 and power pulse signal of each phase separately.

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

Single directional measurement of three-phase active energy consumption, independent of the direction of load current flow, in accordance with IEC 62053-21 standard.

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