Eastron SDM230-Modbus PV Solar System Electricity Smart Meter
- Category: PV Accessories
- Features
Product Description
Eastron SDM230-Modbus PV Solar System Electricity Smart Meter
The Eastron SDM230-Modbus is a multifunction single-phase smart energy meter designed for residential electricity monitoring, solar PV systems, and EV charging applications. It measures active and reactive energy, voltage, current, power, power factor, and frequency, providing useful data for energy management and system monitoring.
Featuring RS485 Modbus communication, two pulse outputs, and bidirectional energy measurement, the SDM230-Modbus supports remote data collection and monitoring of imported and exported electricity. Its direct-connected design and compact 36 mm DIN-rail mounting make it a practical solution for residential and commercial energy monitoring.
Product Features
Bidirectional Energy Measurement: Monitors imported and exported electricity for solar PV applications.
Multifunction Measurement: Measures voltage, current, active and reactive power, energy, power factor, and frequency.
RS485 Modbus Communication: Enables remote monitoring and integration with compatible energy management systems.
Dual Pulse Outputs: Supports external energy data collection.
Direct Connection: Supports up to 65A without external current transformers on the linked model.
Compact DIN-Rail Design: 36 mm, two-module width with a backlit LCD display.
Certified Version Available: The official product page lists ETL and MID approval; confirm certification for the exact supplied version.
Technical Specifications
Specification | Details |
|---|---|
Brand | Eastron |
Model | SDM230-Modbus |
Product Type | Single Phase Multifunction Smart Energy Meter |
Measurement System | Single-phase, two-wire (1P2W) |
Rated Current (Ib) | 10 A |
Maximum Current | 65 A |
Minimum Current | 0.5 A |
Starting Current | 40 mA |
Operating Voltage | 100–240 V AC |
Frequency | Confirm the applicable version's rated frequency |
Measurement Method | RMS measurement |
Active Energy Accuracy | Class 1, IEC 62053-21 |
Reactive Energy Accuracy | Class 2, IEC 62053-23 |
Voltage Accuracy | 0.5% of range maximum |
Current Accuracy | 0.5% of range maximum |
Power Accuracy | 1% of range maximum |
Frequency Accuracy | 0.2% of mid-frequency |
Power Factor Accuracy | 1% of unity (0.01) |
Communication Interface | RS485 |
Communication Protocol | Modbus RTU |
Communication Address | 1–247 |
Transmission Speed | 1,200–38,400 bps |
Maximum Transmission Distance | 1,000 m |
Parity | None (default), Odd, Even |
Stop Bits | 1 or 2 |
Communication Response Time | Less than 100 ms |
Pulse Outputs | 2 |
Display | Backlit LCD |
Installation | DIN-rail mounting |
Module Width | 36 mm (2 modules) |
Direct Connection | Up to 65 A; no external CT required within rated limits |
Certification | ETL listed; MID-approved version available |


