The front three-point fixed installation of the R board conforms to the appearance and installation dimensions of BS 7856 and DIN 43857 standards.

The optional bottom and terminal block of R are made of high-quality laminated wood material that is moisture-proof, flame-retardant, and heat-resistant. The cover and terminal block cover are also made of laminated wood material, with a transparent glass window, which has the characteristics of good weather resistance, high rigidity, and excellent insulation performance.

The optional watch cover is made of transparent UV resistant PC material by integral molding, the terminal cover is made of black PC material by integral molding, and the watch bottom and terminal seat are made of high-quality rubberwood material that is moisture-proof, flame-retardant, and heat-resistant by integral molding. It has the characteristics of good weather resistance, high rigidity, and excellent insulation performance.

The optional cover of R is stamped and formed from high-quality aluminum plate and treated with anti-oxidation. The bottom of the watch and the terminal cover are stamped and formed from high-quality steel plate and treated with double rust prevention. The terminal block is molded from high-quality rubberwood material that is moisture-proof, flame-retardant, and heat-resistant, with good weather resistance, high rigidity, and beautiful appearance.

The optional watch cover is made of ABS engineering plastic by molding, with a transparent glass window. The bottom of the watch and the terminal cover are stamped from high-quality steel plates and treated with double rust prevention. The terminal block is made of high-quality rubberwood material that is moisture-proof, flame-retardant, and heat-resistant by molding, which has the characteristics of affordability and beautiful appearance.

The R base frame is made of aluminum alloy integral die-casting, which has the advantages of stable and reliable magnetic circuit and impact resistance for long-term use.

The R voltage component and current component both adopt a double insulation structure, which has good electrical characteristics.

The various error adjustment mechanisms of R adopt a continuously variable transmission mechanism, and the instrument's diving is completed by the anti diving needle on the disc shaft, which is convenient for users to calibrate.

The bottom bearing of the R standard configuration adopts double gemstone bearings, and the top guide bearing is composed of a special high wear-resistant copper alloy liner and stainless steel needle, which has the advantages of long service life and low friction resistance. Magnetic push bearings can be selected (please specify when ordering).

The R standard configuration includes a 6-digit drum wheel mechanical counter display, and a 7-digit drum wheel mechanical counter display can be selected (please specify when ordering).

The R standard configuration does not come with a reverse device, and you can choose to add a reverse function (please specify when ordering).

The R standard configuration does not come with a handle, but an additional handle can be added for easy carrying of the meter (please specify when ordering).

Measure the active energy consumption of three-phase four wire system, in accordance with IEC 62053-11 standard.

R can be used with either direct access or CT access. The direct access instrument has two wiring options: 16A and 16B, while the CT access instrument has a wiring option of 48B.

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