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2TAZ662012R2000 ABB M1M 20 Modbus Power Meter
ABB M1M 20 Modbus is a panel-mounted multifunction power meter with Modbus RTU communication, 1 A and 5 A CT connectivity, four-quadrant energy measurement, voltage and current THD monitoring, an LCD display and a 100–230 V AC/DC auxiliary supply.
£166.17
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.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Measurement Functions | Current, Power | |
| Device Type | Power / energy analyser | |
| Coil / Supply Voltage | 100–230 V AC/DC | |
| Communication | Modbus RTU | |
| Display | LCD | |
| Series | M1M 20 | |
| ABB order code | 2TAZ662012R2000 | |
| Product type | Multifunction power meter | |
| Current measurement | External current transformer | |
| CT secondary current | 1 A / 5 A | |
| Communication protocol | Modbus RTU | |
| Communication interface | RS485 | |
| Auxiliary supply | 100–230 V AC/DC | |
| Display | LCD | |
| Active energy accuracy | ±1% | |
| Energy measurement | Four-quadrant import/export | |
| Power-quality measurement | Current and voltage THD | |
| Mounting type | Front-panel mounting | |
| Front dimensions (W × H) | 96 × 96 mm | |
| Net weight | 0.320 kg |
Frequently Asked Questions
What is the ABB M1M 20 Modbus used for?
The ABB M1M 20 Modbus is used for electrical parameter measurement, energy monitoring and basic power-quality analysis in industrial and commercial electrical distribution systems.
What communication protocol does the M1M 20 Modbus use?
The meter uses Modbus RTU communication, allowing measurement data to be integrated with compatible monitoring, automation and energy-management systems.
What does the ABB M1M 20 Modbus measure?
The meter measures voltage, current, frequency, power factor, active power, reactive power, apparent power and energy, together with current and voltage THD.
Can the M1M 20 Modbus measure imported and exported energy?
Yes. The M1M 20 provides four-quadrant energy measurement, enabling monitoring of both energy consumption and local energy generation.
What current transformers can be used with the M1M 20 Modbus?
The M1M 20 Modbus is designed for transformer-connected measurement and supports external CTs with 1 A or 5 A secondary currents.
Reliable ABB Power and Energy Monitoring
ABB M1M power meters provide practical electrical-system monitoring by combining essential power, energy and basic power-quality measurements with communication capabilities for modern industrial and commercial distribution systems.
