Two-Tariff Electric Energy Meter, 3-Phase, Bidirectional with Modbus RTU, for Direct Measurement LE-03MW

LE-03MW is an electronic, three-phase electric energy consumption meter with a bidirectional and tariff design, intended for direct measurement. The device allows for the registration of active and reactive energy divided into four tariff zones, measurement of energy consumed and returned, and remote data reading via the RS-485 interface with Modbus RTU protocol. The meter features a multifunctional LCD display and two programmable pulse outputs.

Manufacturer Information

The manufacturer is F&F Filipowski sp.j., a company based in Pabianice (ul. Konstantynowska 79/81). The company offers measuring devices including the LE series of energy meters, ensuring certification compliant with the MID Directive and the possibility of using dedicated configuration software LE Config.

Main Electrical Parameters

• Reference Voltage: 3×230/400 V
• Measurement Voltage Range: L–N 100÷289 V AC, L–L 173÷500 V AC
• Basic / Maximum Current: 0.25/5 A (base current), direct measurement up to 80 A
• Minimum Detection Current: 0.04 A
• Rated Frequency: 50 Hz
• Measurement Accuracy: Class B (MID)
• Pulse Outputs: 2 OC type outputs (open collector), max. 30 V DC, max. current 27 mA; fixed pulsing: output 1 = 1, 10, 100, 1000 imp/kWh; output 2 = 1000 imp/kvar
• Communication: RS-485 port, Modbus RTU protocol, speeds 1200/2400/4800/9600 bps, EVEN parity, 2 parity bits
• Measurement Functions: active energy consumed and returned, reactive inductive and capacitive energy, phase voltages and currents, active/reactive/apparent powers, power factor, frequency, demand registration, and tariff meters

Mechanical Parameters

• Dimensions: 76 × 100 × 65 mm (width × height × depth)
• Mounting: on TH-35 mm rail (4.5 DIN modules)
• Connection: screw terminals for up to 25 mm²
• Protection Class: IP51
• Enclosure: self-extinguishing material UL94 V-0, insulation protection class Class II