Two-tariff electricity meter, 3-phase, bi-directional with Modbus RTU, for direct measurement LE-03MW

Three-phase energy meter – precise measurement and remote reading

This advanced LE-03MW three-phase energy meter is a reliable solution for both professional installers and end-users. The device is designed for direct measurement of energy consumption in three-phase installations, while also offering remote reading and configuration functions. It meets the requirements of the MID directive, guaranteeing the accuracy and reliability of measurements.

Functionality and application

The LE-03MW meter measures active and reactive energy in both directions, allowing for accurate billing of both energy consumption and feed-in to the grid. The built-in real-time clock allows for dividing consumption into different tariff zones, which is particularly useful in commercial and industrial facilities. Thanks to the RS-485 (Modbus RTU protocol) and optical port (EN62056/IEC1107) communication interfaces, remote data reading and device configuration are possible. This facilitates integration with energy consumption monitoring systems and building automation.

Key features and benefits

• Bidirectional measurement: Precise billing of both energy consumption and feed-in.
• Direct measurement up to 80A: Eliminates the need for additional current transformers in installations with lower loads.
• Multi-tariff: Possibility of dividing consumption into different tariff zones for energy cost optimization.
• Modbus RTU communication interface: Enables easy integration with remote data reading systems (telemetry).
• MID directive compliance: Guarantee of measurement legality and possibility of use in billing with the energy supplier.
• SO pulse output: Allows for recording energy consumption by external systems.
• Compact size: A housing with a width of 4.5 DIN modules simplifies mounting in electrical panels.
• Durable construction: Ensures reliable operation in various environmental conditions (IP20).

Technical specifications

The LE-03MW meter has been designed with durability and reliability in mind. It is adapted to operate at temperatures from -25°C to 50°C, and its accuracy class B ensures precise measurements. Mounting is done on a standard 35 mm DIN rail, which simplifies installation. The device has protection against meter reversal and the possibility of sealing the terminals, which prevents manipulation. The meter's base current is 5A, and the maximum current is 80A. The rated voltage is 230/400V (L-L).