Description

1. Product Title

ABB M4M 30 MODBUS (Part No: 2CSG274761R4051) – 3-Phase High Precision Power Quality Network Analyzer with Modbus RTU Communication

 

2. Product Overview

The ABB M4M 30 MODBUS (2CSG274761R4051) is a high-end 96×96mm panel-mounted three-phase multifunctional power network analyzer from ABB M4M series, designed for comprehensive electrical parameter measurement, power quality analysis and energy metering in low-voltage distribution systems. It adopts a 3.5-inch color touch screen for intuitive local viewing and parameter configuration, supports CT secondary indirect current measurement, directly measures neutral line current, and captures up to the 40th harmonic, total harmonic distortion (THD), three-phase voltage/current unbalance, waveform recording and phasor diagram display. Equipped with RS485 Modbus RTU industrial bus and built-in Bluetooth for mobile APP debugging, it uploads all measured data to PLC, SCADA, BMS and ABB Ability energy management platform automatically. With 0.5S high metering accuracy and 32MB event logging memory, it realizes 4-quadrant active/reactive/apparent energy statistics, peak demand recording and abnormal power event storage, effectively helping enterprises conduct energy consumption accounting, power quality troubleshooting and distribution cabinet intelligent monitoring.

3. Technical Specifications

• Brand: ABB
• Model: M4M 30 MODBUS
• Full Order Code: 2CSG274761R4051
• Warranty: One Year
• Condition: 100% New & Original, Made in Italy
• 

Core Measurement Capabilities

1. Basic electrical parameters: 3P3L/3P4L voltage, current, frequency, power factor, active/reactive/apparent power
2. Energy metering: 4-quadrant active/reactive energy, multi-tariff energy accumulation, max demand statistics
3. Power quality analysis: THD of voltage & current, individual harmonic up to 40th order, three-phase unbalance rate, waveform capture, phasor vector diagram
4. Neutral line direct measurement, 32MB large memory for historical data & fault event recording

Accuracy & Standard

• Energy accuracy: Class 0.5S (compliant with IEC 62053-22, IEC 61557-12)
• Voltage measuring range: 50~690V AC direct measurement, or via voltage transformer
• Current mode: CT 5A secondary indirect connection

Communication & I/O

• Standard Protocol: Modbus RTU over isolated RS485 terminal
• Auxiliary Bluetooth: For mobile phone APP on-site commissioning and parameter setting
• Programmable I/O: 4 digital inputs + 2 relay pulse outputs (for energy pulse remote transmission)

Electrical & Mechanical

• Auxiliary power supply: 48~240V AC/DC wide range, max power consumption 10VA
• Mounting size: Standard 96mm × 96mm panel cutout, depth 77.5mm
• Protection Grade: Front panel IP54, rear terminal IP20
• Operating Temperature: -25°C ~ +70°C
• Net Weight: 400g
• Display: 3.5-inch color TFT touchscreen with menu navigation