3-phase digital electricity meter RLE03-4M - MID, CE, 63A, RS485, ModBus, four-quadrant 2617213

The three-phase electricity meter RLE03-4M is designed for direct measurement of energy in 3(N)~ 400/230 V networks. The device offers measurement of active and reactive energy in four quadrants, an LCD display with clear interfaces, and remote reading via an isolated RS-485 port compliant with the Modbus RTU protocol (optionally DL/T645). The meter is intended for commercial and industrial applications, including photovoltaic installations (inverters).

The manufacturer of the device is Relpol S.A. — a company specializing in electrical apparatus and components. The technical documentation and construction of the meter (ABS plastic housing, mounting on a 35 mm rail according to EN 60715) confirm compliance with the EN 50470 standard and the requirements of the MID and RoHS directives and certifications.

Electrical parameters

• Nominal voltage: 3(N)~ 400/230 V ±10%
• Operating power supply range: 0.8...1.2 Un
• Input current: min./max 0.25 A / 63 A
• Reference current / starting current: 0.5 A / 0.02 A
• Nominal current (auxiliary input): 5 A
• Starting current: 0.002 Ib
• Power consumption: voltage circuit < 4 VA; current circuit < 1 VA
• Power frequency: 50/60 Hz ±5%
• Communication: isolated RS-485 port, Modbus RTU protocol (optionally DL/T645), speed up to 9600 bps
• Accuracy and pulse outputs: class B (class 1), 1 active energy pulse output, pulse indicator 1600 imp/kWh, pulse width 80 ms ±20%
• RTC measurement error: ≤ 0.5 s/day

Mechanical parameters

• Mounting: direct mounting on a 35 mm rail (EN 60715), vertical working position
• Dimensions: 90 × 72 × 63 mm (L × W × H)
• Width of installation: 72 mm (modular cover)
• Weight: 350 g (with packaging)
• Operating temperature: -25 °C ... +55 °C
• Storage temperature: -30 °C ... +80 °C
• Protection degree: panel: IP51, cover: IP20 (EN 60529)
• Relative humidity: 5...95% (non-condensing)