PLANET DIN-rail 5-circuit Modbus Smart Power Meter (RC/MV 0~333mv, AC 85-264V/DC 100-300V, RS-485 Modbus RTU) network media converter

Enabling ESG-driven Smart Energy Management

As ESG and sustainability initiatives become increasingly important, enterprises, industrial facilities and public infrastructure require greater visibility into energy consumption and operational efficiency. Accurate power monitoring provides the essential data foundation for smarter energy management, helping organizations optimize energy use and support measurable sustainability goals. In response to the trend and customer needs, PLANET announces a series of Smart Power Meter for smarter energy management and long-term ESG initiatives.


High-density Multi-circuit Power Monitoring

The PLANET SPM-D05/D10 Series is a line of DIN-rail multi-circuit power meters designed for centralized monitoring of multiple electrical circuits. The series consists of four models: the 5-circuit SPM-D05 and SPM-D05E, and the 10-circuit SPM-D10 and SPM-D10E. By integrating electrical measurement, power-quality analysis, data logging and Modbus communication into a compact unit, the series helps reduce installation space, wiring complexity and deployment costs in energy management applications.


Flexible 5-circuit and 10-circuit Configurations

The SPM-D05 and SPM-D05E provide a 5-circuit configuration suitable for smaller distribution panels and applications with fewer monitored loads. The SPM-D10 and SPM-D10E provide a 10-circuit configuration with two independent main circuits and up to 24 single-phase branch circuits or 8 three-phase branch circuits. Their upper and lower current input groups are electrically isolated, allowing two independent power systems to be monitored by a single meter.


Flexible Wiring for Various Power Systems

Each group of three current inputs can be configured for 1P2W, 1P3W, 3P3W or 3P4W systems according to the connected load. When a branch circuit is configured for single-phase measurement, each current input can be assigned to the corresponding voltage phase. This flexible configuration supports mixed single-phase and three-phase loads and simplifies load-balancing arrangements in different power distribution environments.


High-accuracy True RMS Measurement

With True RMS measurement and a sampling rate of 256 points per cycle, the SPM-D05/D10 Series delivers reliable measurements across a wide range of electrical loads. It provides 0.2% voltage and current accuracy and Class 0.5S active and reactive energy accuracy, making it suitable for energy monitoring, electricity cost allocation and power-quality management.


RS-485 and Ethernet Connectivity

All models are equipped with an RS-485 interface supporting Modbus RTU. The SPM-D05E and SPM-D10E additionally provide an Ethernet interface supporting Modbus TCP for integration into IP-based monitoring networks. The SPM-D05 and SPM-D10 are designed for standard RS-485 deployments without Ethernet connectivity.


Comprehensive Energy and Power-quality Measurement

The SPM-D05/D10 Series provides comprehensive measurement of voltage, current, frequency, active power, reactive power, apparent power, power factor, and active, reactive and apparent energy. It also supports voltage and current total harmonic distortion (THD), 2nd- to 31st-order harmonic measurement, three-phase unbalance, demand calculation, and maximum and minimum value recording, enabling detailed analysis of energy consumption and power quality.


Built-in Data Logging and Time-of-use Management

The SPM-D05/D10 Series incorporates 2MB Flash memory for local data logging without battery-life limitations. It can record selected measurement parameters at configurable intervals for historical energy analysis. Time-of-Use (TOU) functionality supports up to 4 time zones, 8 time periods and 4 tariff rates, enabling electricity consumption and demand to be tracked according to different billing periods.


Integrated I/O for Alarm and Control

The SPM-D05/D10 Series is equipped with 2 digital inputs, 4 relay outputs and 1 pulse output. The relay outputs can be configured for alarm or digital output operation, enabling the meter to respond to specified electrical conditions and work with external alarm, monitoring and control equipment.


Compact Design for Industrial Environments

Featuring a compact enclosure and standard 35mm DIN-rail mounting, the SPM-D05/D10 Series can be easily installed in electrical distribution panels. When paired with split-core current transformers, it is well suited for retrofit projects where installation space and system downtime are limited. Its built-in 128 × 64 dot-matrix LCD provides an intuitive interface for on-site measurement viewing and parameter configuration.



Learn more:https://www.planet.com.tw/en/product/spm-d05_spm-d10