Three-Phase Bidirectional Energy Meter LE-3x230mb Tech Sterowniki

The LE-3x230mb is a three-phase bidirectional energy meter from Tech Sterowniki, designed for accurate measurement of active and reactive energy in residential, commercial, and industrial installations. It supports both import and export metering, making it ideal for photovoltaic systems and net metering applications.

Advantages

MID certified for legal metrology, the meter offers high accuracy (Class 1 for active energy) and a clear LCD display with backlight. Its Modbus RTU (RS-485) interface enables easy integration with building management systems and energy monitoring platforms. The compact DIN rail design (4 modules) simplifies installation in standard distribution boards.

Suitable for

• Three-phase energy monitoring in commercial buildings
• Solar PV systems with bidirectional metering
• Industrial submetering and load profiling
• Smart grid and demand-side management

Key specifications

• Measurement: Three-phase, bidirectional (import/export)
• Parameters: Active energy (kWh), reactive energy (kvarh)
• Communication: Modbus RTU (RS-485)
• Display: LCD with backlight, 6+2 digits
• Nominal voltage: 3 x 230/400V AC
• Frequency: 50/60 Hz
• Max current: 3 x 100A
• Base current: 3 x 5A
• Accuracy: Class 1 (active), Class 2 (reactive)
• Pulse outputs: 2 x S0
• Mounting: DIN rail, 4 modules
• Operating temperature: -25°C to +55°C
• Protection: IP51 (front), IP20 (terminals)
• MID certified: Yes

Recommendations

For optimal performance, use shielded twisted-pair cable for RS-485 communication and ensure proper termination. The meter should be installed by a qualified electrician in accordance with local regulations.