R board front three-point fixed installation, with a center distance of 198-212mm between the upper and lower installation holes, which can be adjusted by the user at will.

R can be used directly or CT connected, and the CT connected instrument can set 27 CT ratios. After setting, the instrument will read directly without multiplying by CT magnification.

R direct access instrument display mode 6+1 bit (999999.1) LCD display.

The display mode of the R CT connected instrument is 5+2 digits (only when the CT ratio is 5:5A) or a 7-digit integer LCD display, selected by the set CT ratio.

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

The R configuration has polarity passive active power pulse output ports and reactive power pulse output ports, with four output pulse rates of 0.01, 0.1, 1, 10 kWh or kvarh/Pulse, which can be freely set by the user and comply with IEC 62053-31 and DIN 43864 standards.

The R LED indicates the status of each phase power supply, as well as the active and reactive power pulse signals.

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 and IEC 62053-23 standards.

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