DEYE Energy Meter Three Phase

The DEYE Energy Meter Three Phase is designed for monitoring electrical parameters within solar power systems and zero-export applications. The supplied SDM630MCT-40mA version corresponds to the EASTRON SDM 630 MCT model shown in the provided Deye technical documentation and uses a current transformer (CT) for current measurement.

The meter measures key grid parameters including voltage, current, active power, reactive power, frequency and energy, then communicates the measured information to a solar inverter through an RS485 communication interface.

With DIN rail mounting, an integrated LCD display and a compact 72 × 94.5 × 65 mm format, the meter is designed to integrate neatly into electrical installations. Its application diagram shows the meter positioned between the inverter and grid, with RS485 communication linking the energy meter and inverter while supplying information for system monitoring.

For installations requiring current measurement through CTs, the SDM630MCT-40mA provides a dedicated metering solution within Deye’s Energy Meter range.

Key Features of Product

• Three-phase energy monitoring: Designed to measure and display important electrical parameters within a solar power system.
• Current measurement with CT: The SDM 630 MCT supports a maximum direct current measurement range of 1–9999A with CT.
• Wide voltage measurement range: Direct voltage measurement between phases is specified at 50–950V and 50–550V, while phase-to-neutral measurement is 20–550V.
• RS485 communication: Transfers measured information between the meter and compatible solar inverter systems.
• LCD display: Provides local visibility of measured electrical information.
• DIN rail mounting: Uses standard DIN rail installation for straightforward integration into an electrical enclosure.
• Compact construction: Measures 72 × 94.5 × 65 mm and weighs 0.29 kg.
• IP51 protection: Provides the protection rating specified in the supplied technical documentation.
• Multi-device communication: Supports connection of up to 32 devices.
• Operating temperature: Regulated working temperature range of -25°C to +55°C.
• Low power consumption: Power consumption is specified at ≤2W / 10VA.
• 1.5-year warranty: The supplied technical data specifies a 1.5-year warranty.

Main Benefits

For Solar System Installers

A three phase energy meter provides installers with a dedicated device for monitoring grid-side electrical parameters within a solar installation. The SDM 630 MCT uses CT-based current measurement, allowing the system to measure currents across the specified range while keeping the meter itself compact enough for DIN rail installation.

The integrated LCD also gives installers a local display for checking measured information without requiring a separate display device.

For Solar System Designers

The meter supports the measurement of several important electrical parameters, including voltage, current, active power, reactive power, frequency and energy. This provides a defined measurement point for system designs where electrical information needs to be monitored and communicated to the inverter.

Its RS485 interface also allows the meter to transfer information to the solar inverter in the zero-export application shown in the supplied Deye documentation.

For EPC Contractors

The DIN rail mounting format and compact dimensions help simplify integration into an electrical enclosure. The meter measures 72 × 94.5 × 65 mm and weighs 0.29 kg, making its physical requirements clear during equipment planning.

The RS485 communication interface and support for up to 32 connected devices also provide a defined communication method for installations involving multiple compatible devices.

For Commercial & Solar Applications

The supplied application diagram shows the energy meter working within a system consisting of a PV array, inverter, grid and home loads. In this configuration, the meter provides electrical measurement information and communicates with the inverter through RS485.

This makes the product relevant where monitoring grid parameters forms part of the system design.

Technical Highlights

The SDM630MCT-40mA product supplied by Solar Rains is represented in the Deye documentation by the EASTRON SDM 630 MCT model. Key technical points include:

• Maximum direct current measurement: 1–9999A with CT
• Direct voltage measurement between phases: 50–950V / 50–550V
• Direct measurement between phase and neutral: 20–550V
• Active power accuracy: Class 1
• Reactive power accuracy: Class 2
• Power consumption: ≤2W / 10VA
• AC power supply input voltage: 85–275V / 120–380V
• AC power supply input frequency: 50/60Hz ±2%
• Dimensions: 72 × 94.5 × 65 mm
• Weight: 0.29 kg
• Mounting: DIN Rail
• Degree of protection: IP51
• Display: LCD
• Communication: RS485
• Maximum number of devices to connect: 32
• Regulated working temperature: -25°C to +55°C
• Humidity: 0–95%, non-condensing
• Warranty: 1.5 years

These specifications should be checked against the supplied product documentation when planning an installation, particularly where the CT configuration and electrical measurement ranges are being selected.

Installation

The supplied Deye documentation provides a typical application diagram rather than a detailed step-by-step installation manual. Based strictly on that diagram and the technical data, the installation can be understood in the following sequence.

1. Prepare the installation location

The meter is designed for DIN rail mounting, so prepare a suitable electrical enclosure or installation area with the required DIN rail arrangement.

Allow enough space for the meter’s 72 × 94.5 × 65 mm dimensions and for the electrical and RS485 connections required by the system.

2. Mount the energy meter

Secure the meter onto the DIN rail. The DIN rail mounting format allows the device to be integrated alongside other electrical equipment within the installation.

3. Connect the meter within the system

The Deye typical application diagram shows the energy meter positioned between the inverter and grid connection, with home loads connected within the system.

The exact terminal connections should follow the applicable wiring diagram and installation documentation for the equipment being installed. The supplied datasheet does not provide detailed terminal-by-terminal wiring instructions, so those connections should not be inferred from the application diagram alone.

4. Connect the RS485 communication

The diagram shows an RS485 connection between the inverter and energy meter. This communication link allows the meter to transfer measured electrical information to the inverter in the illustrated zero-export application.

Ensure the communication wiring follows the relevant equipment documentation before commissioning.

5. Check the meter display

Once installed, the built-in LCD display provides a local interface for viewing the meter’s measured information.

The supplied documentation does not provide a detailed commissioning sequence or parameter-setting procedure, so configuration should be completed according to the applicable installation documentation for the connected system.

Installation note: The supplied datasheet provides the application arrangement and technical specifications but does not include a complete wiring or commissioning procedure. For terminal connections and system commissioning, refer to the applicable product documentation.

Deye

The Energy Meter is part of Deye’s broader range of solar PV, energy storage, accessory and monitoring solutions. Deye states that Ningbo Deye Inverter Technology Co., Ltd. was founded in 2007 and specialises in integrated solar PV and energy storage solutions for residential, commercial and industrial applications. Its product portfolio includes PV inverters, hybrid inverters and microinverters.

Deye’s Energy Meter range is positioned for monitoring and displaying grid parameters such as voltage, current, active power, reactive power, frequency and energy. The company’s product documentation also identifies RS485 communication and DIN rail mounting as key characteristics of the meter range.

For Solar Rains customers purchasing the SDM630MCT-40mA, the product provides a compact metering component based on the SDM 630 MCT configuration specified in the supplied technical documentation.