Three-phase energy meter LVCT Modbus A9MEM3455

Three-phase energy meter with Modbus interface – precise measurement and flexible communication

The LVCT Modbus energy meter from the Acti9 iEM3000 series is an advanced device designed to measure electricity consumption in three-phase installations. DIN rail mounted, it offers Class B accuracy and a wide range of rated voltages (100…277 V N-L and 173…480 V L-L), making it a universal solution for both low and high voltage installations. Thanks to the RS-485 interface and Modbus protocol, it enables easy integration with energy monitoring and management systems.

This model, 5 modules wide (90 mm), is ideal for applications requiring detailed energy consumption analysis, sub-billing and network parameter monitoring. Equipped with a digital display, it presents key data on active and reactive power consumption, voltage and current. Additional LED signaling informs about correct operation, overloads and communication status.

Construction features and functionality

The meter's construction is based on proven indirect/semi-indirect measurement technology, ensuring reliability and accuracy of readings. The ability to configure external or internal tariffs allows the meter to be adapted to the specific needs of the user. A D0 type pulse output (1…1000 Imp/kWh (kvarh)) enables remote data reading and integration with building automation systems. The meter supports both energy consumption and return, which is important in applications with renewable energy sources.

The meter has 9 counter positions, allowing for accurate recording of energy consumption over a longer period of time. IP20 protection class provides protection against accidental contact, and compliance with national approvals guarantees safe use. Please note that the device does not have metrological approval.

Applications and benefits

• Energy consumption monitoring: Precise measurement of active and reactive power allows for optimization of energy consumption and cost reduction.
• Sub-billing: The ability to configure tariffs enables fair allocation of energy costs between different consumers.
• Integration with BMS/SCADA systems: Modbus RS-485 interface facilitates integration of the meter with building or industrial plant monitoring and management systems.
• Power quality analysis: Measurement of voltage and current allows for identification of problems related to electrical power quality.
• Installation flexibility: Wide range of rated voltages and the possibility of mounting on a DIN rail facilitate installation in various types of electrical installations.
• Multi-tariff: Support for multiple tariffs allows you to adapt billing to changing tariff conditions or energy consumption profiles.