Electricity meter - three-phase with programmable ratio, RS-485 MODBUS, LCD, class 1 LE-03M-CT

Three-phase energy meter with RS-485 communication

The LE-03M-CT meter is an advanced device designed to measure electricity consumption in three-phase installations. Equipped with an RS-485 port with Modbus RTU protocol, it enables remote data reading and integration with energy consumption monitoring systems. It is a reliable solution for both professional installers and end-users looking for precise and remotely controllable energy measurement.

Features and application

The LE-03M-CT meter is designed to work with current transformers with primary current ranges from 5 to 6000A and a secondary current of 5A. It enables indirect measurement, and the programmable ratio allows for accurate readings of energy consumed, regardless of the installation configuration. This makes it suitable for a variety of applications – from households, through small businesses, to industrial facilities. Equipped with a clear LCD display, it presents current energy consumption, and power consumption indication with LEDs facilitates visual control of the operation of individual phases.

Advantages and benefits

• Remote data reading: The RS-485 port with Modbus RTU protocol enables integration with monitoring systems and remote reading of meter indications, which translates into saving time and costs associated with manual reading.
• Programmable ratio: Allows for precise adjustment of the meter to a specific installation and ensures accurate measurements regardless of the current transformers used.
• Wide measurement range: Cooperation with transformers with different parameters enables the use of the meter in installations with different power.
• Solid construction: Made of high-quality materials, ensures reliable operation in difficult operating conditions.
• Compliance with the MID directive: Guarantees the legality of measurements and the possibility of using the meter in settlements with energy suppliers (although the meter itself is not legalized).
• Easy configuration: Available service software (LE Config) allows for easy configuration of meter parameters and test data reading.
• SO+ SO- pulse output: Enables connection of external devices recording pulses, which expands the possibilities of monitoring energy consumption.

Technical parameters and construction

The LE-03M-CT meter is an electronic meter designed for mounting on a TH-35mm rail, occupying 7 modules (122mm). It has accuracy class B and protection degree IP20. It is adapted to work at a temperature from -20°C to 55°C. The housing is made of PC+ABS plastic providing durability and resistance to mechanical damage. The pulse output has an open collector (OC) with a maximum voltage of 30V DC and a maximum current of 27mA. The pulse constant is 12000 imp/kWh for the maximum input current of the meter (5A). The values of the primary currents Ip of the transformers entered into the device's memory are: 5, 20, 30, 40, 50, 60, 75, 80, 100, 120, 150, 200, 250, 300, 400, 500, 600, 750, 800, 1000, 1200, 1250, 1500, 2000, 2500, 3000, 4000, 5000 and 600 A.