The Eastron SDM630MCT V2 is a professional DIN-rail smart energy meter designed for accurate monitoring of single-phase and three-phase electrical systems. It measures a wide range of electrical parameters including voltage, current, frequency, power, power factor, active and reactive energy, as well as harmonic distortion, making it a practical solution for commercial, industrial, and advanced residential energy monitoring applications.

This meter supports external current transformers, Modbus RS485 communication, and bi-directional energy measurement for both imported and exported energy. It is suitable for applications where reliable power monitoring, energy management, and integration with external control or monitoring systems are required. The SDM630MCT V2 also features DIN-rail mounting, password-protected configuration, and two pulse outputs for flexible system integration.

This product version is offered with 3x300A CTs, making it suitable for higher-current three-phase installations where direct meter connection is not appropriate.

Key features

• 3-phase smart energy meter with external CT operation

• Supplied version with 3x300A current transformers

• Measures kWh, kVArh, kW, kVAr, kVA, power factor, frequency, voltage, current, demand values and THD

• Supports bi-directional measurement for imported and exported energy

• RS485 Modbus RTU communication for monitoring and integration

• Two pulse outputs for energy pulse signaling

• Supports 1-phase 2-wire, 3-phase 3-wire and 3-phase 4-wire systems

• Compatible with 1A / 5A CT secondary input

• DIN-rail 35 mm mounting

• Class 1 active energy accuracy according to IEC 62053-21

• Password-protected setup for secure configuration

Measured parameters
The Eastron SDM630MCT V2 can monitor and display:

• Phase and line voltages

• Current per phase

• Frequency

• Active, reactive and apparent power

• Power factor

• Imported and exported active energy

• Imported and exported reactive energy

• Maximum demand values

• Voltage and current THD (total harmonic distortion)

Communication and integration
For external monitoring and system integration, the meter includes an RS485 communication port using Modbus RTU protocol. Communication settings such as address, baud rate, parity and stop bits can be configured through the front panel. The unit also provides two passive pulse outputs, with one configurable output and one fixed output.

Installation and application
The SDM630MCT V2 is designed for DIN-rail installation and can be used in a wide range of metering and control applications such as:

• Energy monitoring in commercial and industrial installations

• Three-phase load monitoring

• PV and energy storage monitoring systems

• Building energy management systems

• External metering for automation and control solutions

Technical highlights

• Voltage input range: 100 to 289V AC phase-to-neutral and 173 to 500V AC phase-to-phase

• Auxiliary supply: 85 to 275V AC or 120 to 380V DC

• Operating temperature: -25°C to +55°C

• Relative humidity: 0 to 90% non-condensing

• Compact housing dimensions: approximately 94.5 x 72 x 65 mm