Why Choose the ABB M1M 20 Modbus Power Meter?
The ABB M1M 20 Modbus is a multifunction panel-mounted power meter designed for electrical-system monitoring, energy measurement and basic power-quality analysis. As part of the ABB M1M power meter family, it provides essential electrical measurements in a compact 96 × 96 mm format suitable for industrial and commercial switchboards.
The meter measures voltage, current, frequency, power factor, active power, reactive power, apparent power and energy. Four-quadrant energy measurement enables monitoring of both energy consumption and generation, while current and voltage THD measurement provides useful information for basic power-quality assessment.
Integrated Modbus RTU communication enables measurement data to be transferred over an RS485 network to supervisory, building-management and energy-management systems. The M1M 20 Modbus uses external current transformers for current measurement, incorporates an LCD display and operates from a 100–230 V AC/DC auxiliary supply.
Key Advantages
- Multifunction power and energy measurement in one panel-mounted device.
- Modbus RTU communication supports integration with monitoring and automation systems.
- Measures active, reactive and apparent power and energy.
- Four-quadrant measurement supports both energy consumption and generation monitoring.
- Measures current and voltage THD for basic power-quality analysis.
- Transformer-connected design supports external 1 A and 5 A current transformers.
- LCD display provides clear local indication of measured values.
- Compact 96 × 96 mm panel format suits switchboards and distribution panels.
Key Features
- ABB M1M 20 power meter series.
- Modbus RTU communication.
- RS485 communication interface.
- 100–230 V AC/DC auxiliary supply.
- Transformer-connected current measurement.
- Supports 1 A and 5 A CT secondary currents.
- LCD display.
- Voltage and current measurement.
- Frequency and power-factor measurement.
- Active, reactive and apparent power measurement.
- Active, reactive and apparent energy measurement.
- Four-quadrant import/export energy measurement.
- Current and voltage THD measurement.
- Front-panel mounting.
Reliable Power and Energy Monitoring
The ABB M1M 20 Modbus brings the principal measurements required for electrical-system supervision into a single panel meter. Voltage, current, frequency, power factor and active, reactive and apparent power can be monitored locally, while energy measurements provide useful information for consumption analysis, energy management and operating-cost assessment.
Four-quadrant measurement allows the meter to distinguish energy flow for both consumption and local generation applications. Combined with voltage and current THD measurement and Modbus RTU communication, the M1M 20 Modbus provides a practical solution for integrating basic energy and power-quality information into wider electrical monitoring systems.
Typical Applications
- Industrial electrical distribution panels.
- Commercial building switchboards.
- Energy consumption monitoring.
- Local energy generation monitoring.
- Power-factor management.
- Basic power-quality assessment.
- Main and sub-distribution boards.
- Building-management and energy-management systems.
- Modbus-connected electrical monitoring networks.
