Multifunction Power Meter
MFM300
General Description
- Compact and modern design, panel-mounted installation, saving valuable switchboard space.
- Measures a full range of electrical parameters including voltage, current, power, power factor (cosφ), frequency, and more.
- Equipped with graphical displays for active power (P), reactive power (Q), and current loading (%).
- Supports Modbus RTU communication for remote monitoring and integration with supervisory systems.
- Stable operation, reliable performance, and cost-effective solution for electrical monitoring applications.
- Standards & Origin:
- Manufactured in accordance with applicable quality standards.
- iLEC brand – Vietnam.
iLEC MFM300 Multifunction Meter
Display
- Quadrant power direction
- Load %: 0,20,40,60,80,100,120%
- 3 Rows x 4 digits to show electrical parameters
- 1 signal + 8 digits to show energy
Measurement Functions
- Three phase voltage
- Three phase current
- Three phase power (kW, kVar, KVA)
- Three phase power factor, frequency
- Import and Export Energy: kWh, kVarh
- RS485 MODBUS-RTU communication
Display structure
Dimensions
Specifications
| Item | Description / Parameter |
| Wiring Input | Three-phase 4-wire / Three-phase 3-wire |
| Auxiliary power supply | 180-265VAC, 50 or 60Hz Maximum consumption: 5VA |
| Voltage input range | Rated: AC 300VLN / 500VLL Over voltage: continuous 120%; 200% / 1 Second |
| Current Input range | rated 5A; range 30mA - 6A Continuous 1.2In (6A), instantaneous 10*In / 5S |
| Frequency | 45 to 65 Hz |
| Measurement Accuracy class | Voltage: Cl 1; Current: Cl0.5; Frequency: +- 0.2Hz, Power: Cl1; Active energy: Cl1; reactive energy: CL2 |
| Display | LCD display:
- 3 rows x 4 digits for voltage, current, power, pf - Sign + 8 digits for energy import and export - Quadrant arrows for power direction - Graph level 20, 40, 50, 80, 100, 120% for current. |
| Communication | RS485 interface, MODBUS-RTU protocol. Speed; 1.2, 2.4, 4.8, 9.6, 19.2, 38.4Kbps, N81, E(Even)81, O(Odd)81 |
| CT Ratio range | 1 to 9999 (100/5A then ratio = 20) |
| PT Ratio range | 1 to 9999 |
| Protection Class | Front panel: IP52 |
| Environment | Working: -10ºC ~ 45ºC, Humidity <85%RH |
| Mounting | Panel mount, cut out 91x91mm |
Standard connection diagram
Resources & Support
- Technical document MFM300: [ Datasheet ] [ User manual ]