Three-phase electricity meter MODBUS RS-485 - LE-03MP

Three-phase energy meter with MODBUS communication

The LE-03MP meter is an advanced device designed for measuring and monitoring electricity consumption in three-phase installations. Equipped with an RS-485 interface with MODBUS RTU protocol, it enables remote data reading and integration with building automation systems or energy management systems. It is a solid solution for both professional installers and end-users who want to have full control over their energy consumption.

Functionality and application

The LE-03MP meter measures active and reactive energy, phase voltages, phase currents, power factors, and frequency. The LCD display shows current network parameter values, and the ability to manually switch between them facilitates data analysis. The device has a built-in relay that can be controlled remotely or used to protect against overload. The prepaid function allows you to limit energy consumption to a set limit. This makes the meter useful in a variety of facilities – from households, through industrial plants, to commercial buildings.

Key features and benefits

• Remote data reading: The RS-485 interface with MODBUS RTU protocol enables remote monitoring of energy consumption, which translates into saving time and costs associated with manual reading.
• Accurate measurement: Accuracy class 1 ensures reliable measurement data, essential for billing and energy efficiency analysis.
• Versatile functions: Measurement of active and reactive energy, voltage, currents and power factors allows for a comprehensive analysis of network parameters.
• Overload protection: The built-in relay protects the installation from damage caused by excessive load.
• Prepaid function: Limiting energy consumption to a set limit allows you to control costs and avoid unexpected bills.
• Easy installation: The modular design makes it easy to install the meter on a standard 35 mm rail.
• Durability: A wide range of operating temperatures (-20°C to +55°C) ensures reliable operation in various environmental conditions.
• LED indication: The LED indicates electricity consumption.

Technical parameters

The LE-03MP meter is designed to operate in three-phase networks with a rated voltage of 230/400V and a maximum current of 60A. It has an S0 pulse output (800 pulses/kWh) and a protection degree of IP20. The device complies with IEC61036 standard and has a national approval certificate. The width of the meter is 7 modules (122 mm). The base current is 5A and the minimum measured current is 0.02A. The meter's own consumption is 10 VA; 1.5 W.