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ABB M4M 20 ETHERNET 2CSG204471R4051 is a three-phase panel-mounted network analyzer with Modbus TCP/IP, Bluetooth, two digital outputs and a 48–240 V AC/DC auxiliary supply for electrical and energy monitoring.
£339.86
The ABB M4M 20 ETHERNET, order code 2CSG204471R4051, is a high-performance three-phase network analyzer designed for accurate electrical parameter monitoring, energy measurement and basic power quality analysis in commercial and industrial electrical systems. As part of the advanced ABB M4M 20 network analyzer series, it combines comprehensive metering functionality with Ethernet connectivity for integration into modern energy management and automation networks.
The M4M 20 ETHERNET features Modbus TCP/IP and Bluetooth Low Energy (BLE) communication, enabling network-based data exchange and convenient smart commissioning. A graphic colour display provides clear visualisation of measured electrical parameters, while five front-panel pushbuttons provide direct access to device functions and configuration.
Designed for three-phase electrical systems, the analyzer supports a voltage measurement range of 50–400 V and provides active energy accuracy of ±0.5%. It also includes two digital outputs and a wide-range 48–240 V AC/DC auxiliary supply, making it a versatile panel-mounted solution for electrical distribution monitoring, energy efficiency applications and industrial power management.
Network analyzers such as the ABB M4M 20 ETHERNET provide continuous visibility of electrical parameters within distribution systems, helping operators understand energy consumption, monitor system performance and identify conditions that may affect efficiency or power quality.
The M4M 20 series is designed for energy monitoring in commercial and industrial installations. Ethernet-based Modbus TCP/IP communication enables measured data to be integrated into supervisory, automation and energy management platforms, while Bluetooth connectivity simplifies local commissioning and configuration.
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| Measurement Connection Type | CT connection | |
|---|---|---|
| Measurement Functions | Power | |
| Phase | Three Phase | |
| Coil / Supply Voltage | 48–240 V AC/DC | |
| Communication | Ethernet | |
| Display | Graphic LCD | |
| Device Type | Power / energy analyser | |
| Series | M4M 20 | |
| Order code | 2CSG204471R4051 | |
| Product group | Panel Mount Meters | |
| Product type | Three-phase network analyzer | |
| Voltage measurement range | 50–400 V | |
| Number of phases | 3 | |
| Auxiliary supply | 48–240 V AC/DC | |
| Active energy accuracy | ±0.5% | |
| Communication | Modbus TCP/IP, Bluetooth Low Energy (BLE) | |
| Ethernet interface | RJ45 | |
| Modbus TCP/IP connections | Up to 3 clients | |
| Digital outputs | 2 | |
| Display | Graphic colour display | |
| Display size | 70 × 52 mm (3.5-inch) | |
| User interface | 5 pushbuttons | |
| Mounting type | Front-panel mounting | |
| Front dimensions | 96 × 96 mm | |
| Operating temperature | -25 to 70 °C | |
| Storage temperature | -40 to 85 °C | |
| Relative humidity | Maximum 93% non-condensing at 40 °C | |
| Pollution degree | 2 | |
| Installation altitude | Up to 2000 m | |
| Installation | Indoor use | |
| Weight | 0.325 kg | |
| Metering standard | IEC 61557-12 | |
| Electrical safety | IEC 61010-1, IEC 62052-31 |
The ABB M4M 20 ETHERNET is used to monitor electrical parameters, energy consumption and basic power quality in three-phase commercial and industrial electrical networks.
The analyzer supports Modbus TCP/IP over Ethernet and Bluetooth Low Energy (BLE), allowing integration with networked monitoring systems and convenient local commissioning.
The M4M 20 ETHERNET supports a voltage measurement range of 50–400 V for three-phase electrical network monitoring.
The ABB M4M 20 ETHERNET operates with a wide-range 48–240 V AC/DC auxiliary supply.
The analyzer is designed for front-panel mounting in electrical switchboards, distribution panels and energy monitoring systems, using a compact 96 × 96 mm front format.
ABB M4M network analyzers provide comprehensive electrical parameter monitoring and energy measurement for modern power distribution systems, combining accurate metering, clear visualisation and flexible digital communications for industrial and commercial energy management.
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