AC Three Phase CLASS 0.2 Accuracy Multifunction Energy Meter

Modern power systems require more than simple metering. Industrial facilities, smart buildings, substations, and energy-intensive AI infrastructure need one device capable of measuring, recording, diagnosing, and communicating in real time.

Instrava Curated Instruments Multifunction Energy Meter is an advanced AC Three Phase intelligent meter designed for precise energy measurement, power quality monitoring, demand management, and remote data communication.

With CLASS 0.2 accuracy, harmonic analysis up to the 63rd order, multi-tariff billing, built-in web server, and extensive data logging, this meter provides everything needed for reliable energy management and power system visibility.

Key Benefits

  • AC Three Phase multifunction energy measurement
  • High precision with 0.2S / 0.5S metering accuracy
  • Harmonic analysis up to the 63rd harmonic
  • Built-in web server and remote monitoring
  • Multi-tariff billing and demand management
  • Supports LV and MV voltage systems

Applications
Smart Buildings | Industrial Plants | Utilities | Substations | Data Centers | Renewable Energy Systems

Power Monitoring & Control Description  

Multifunction Energy Meter Core Advantages

High-Accuracy AC Three Phase Multifunction Energy Meter

This Multifunction Energy Meter delivers highly accurate energy measurement for both low-voltage and medium-voltage systems.

  • Active Energy Accuracy: Class 0.2S / 0.5S
  • Reactive Energy: Class 2
  • Suitable for LV and MV systems
  • Supports direct connection up to 600VAC

For medium-voltage systems, the meter supports PT connection with programmable PT ratio, making it adaptable to a wide range of grid configurations.


Advanced Power Quality Monitoring with Harmonic Analysis

Unlike ordinary energy meters, this AC Three Phase Multifunction Energy Meter includes advanced power quality functions:

  • 31st / 63rd harmonic analysis
  • Voltage deviation and frequency deviation
  • Voltage and current unbalance
  • Current K factor and crest factor
  • Flicker and fluctuation monitoring
  • Voltage sag, swell, interruption, and transient recording

These functions make it ideal for identifying hidden electrical issues before they lead to equipment failure or energy waste.


Intelligent Demand Management and Multi-Tariff Billing

The meter supports programmable demand calculation and sophisticated tariff management:

  • Fixed block and rolling block demand modes
  • Programmable demand cycles: 5 / 10 / 15 / 30 / 60 min
  • Monthly maximum demand statistics
  • 31-day and 12-month historical data storage
  • Up to 4 tariff rates and 8 daily time periods

This allows users to optimize electricity consumption and reduce utility costs.

0.2S high-accuracy multifunction energy meter for power quality monitoring and industrial energy measurement
Three-phase multifunction energy meter for industrial energy metering and electrical parameter monitoring

Multifunction Energy Meter Technical Highlights

Embedded Web Server and Remote Monitoring

This Multifunction Energy Meter features a built-in HTTP web server for remote access and system management.

Key capabilities include:

  • Real-time data view
  • Cloud service logs
  • Remote configuration and debugging
  • Remote firmware and configuration updates
  • NTP time synchronization

The integrated web platform reduces the need for additional software and simplifies energy monitoring across multiple locations.


Powerful Data Collection and Communication

The meter supports large-scale data acquisition and transmission:

  • Supports both Modbus RTU and Modbus TCP devices
  • Up to 40,000 data points
  • Up to 4 RS485 ports
  • Each RS485 port supports up to 60 slave devices
  • Dual Ethernet ports and optional GPRS communication
  • HTTP(s), XML, and JSON forwarding formats

This makes the meter highly suitable for integration into SCADA, EMS, BMS, and cloud-based monitoring platforms.


Built-In Alarm and Fault Recording

The Multifunction Energy Meter includes a powerful alarm system:

  • Over/under limit alarm
  • Real-time alarm transmission
  • Relay output for fault conditions
  • Event recording and waveform storage
  • SMS alarm notification

The device can automatically detect abnormal conditions such as:

  • High THD
  • Low power factor
  • Voltage imbalance
  • Frequency deviations

This helps users quickly respond to faults and improve system reliability.


Compact Design for Panel Installation

The meter is designed for convenient panel mounting with minimal space requirements:

  • Panel size: 96 × 96 mm
  • Cut-out: 90 × 90 mm
  • Ultra-thin design
  • Expandable modular structure

Its pluggable option modules support future upgrades without replacing the entire device.

Power Monitoring & Control Parameter  

Specification

Description

Rated Working Parameters Rated Power Supply AC85-265V~50/60Hz or DC100-300V
Power Consumption <10VA
Rated Input Current 5A(Compatible 1A)
Rated Input Voltage 3×57.7/100V、3×220/380V 40Hz~70Hz
DI Input [External Power Supply] External provide power supply 220Vac±35%,220Vdc±35%
DI Input [Internal Power Supply] PMAC770H internal power supply,30VDC
Relay Output Capacity:250Vac/5A,30Vdc/5A

Specification

Range

Accuracy

Parameter Accuracy Direct input Voltage Phase-Phase 10V~400V/Phase-N 10V~690V

0.1%/0.2%

Primary Voltage Max.650kV

Direct input Current 5mA~6.5A

0.1%/0.2%

Primary Current Max.50000A

Frequency 35Hz-65Hz

0.1%

  EMC Working Environment Temperature:-25℃ -+70℃,Humidity:5%~95%,no condensation
Insulation properties Power Frequency withstand Voltage 4000VAC,Insulation Resistance≥100MQ
IP Level Front Case:IP54

ltem

Reference Standard

Level

Electromagnetic compatibility

Electrostatic discharge immunity GB/T176262-2006(IEC61000-4-2:2001)

Level 4

Radio frequency electromagnetic radiation immunity GB/T17626.3-2006(IEC61000-4-3:2002)

Level 4

Fast transient burst immunity GB/T17626.4-2008(IEC61000-4-4:2006)

Level 4

Surge immunity GB/T17626.5-2008(IEC61000-4-5:2005

Level 4

Immunity to Conducted Disturbances Induced by RF Fields GB/T17626.6-2008(IEC61000-4-6:2006)

Level 3

Electromagnetic Emission Limits GB 9254-2008(CISPR22:2006)

Class B

Instrava OEM/ODM  

Tailored Sourcing & Customization: Getting You the Exact Product You Need

As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.

Finding the right product in a massive supply chain can be challenging. That is where we step in.

As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.

How We Customize to Fit Your Procurement Needs

  • For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.

  • For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.

  • For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.

Why Partner with Us for Custom Sourcing?

  • One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.

  • Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.

  • Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.

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Related Product Recommendations  

A Multifunction Energy Meter is an intelligent device that measures multiple electrical parameters such as voltage, current, power, energy, harmonics, and demand in a single instrument.

Class 0.2 accuracy provides highly precise energy measurement with very low error. It is ideal for applications requiring accurate billing, cost allocation, and high-quality power monitoring.

Yes. This meter supports harmonic analysis up to the 31st or 63rd harmonic, including THD, current K factor, and voltage imbalance.

Yes. For medium-voltage applications, the meter can connect through PTs, and the PT ratio can be programmed to match the system.

Yes. It supports Modbus RTU, Modbus TCP, Ethernet, GPRS, HTTP, XML, and JSON, making it easy to integrate into SCADA, EMS, cloud, and energy management systems.

The embedded web server allows users to remotely monitor, configure, and troubleshoot the device through a browser without requiring additional software.

Why Trust Instrava?

We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.

Our very existence depends on helping you source the products that are the perfect fit for your needs.

Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.

We help you avoid intermediaries posing as factories.

We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.

Our multilingual team ensures effective communication.

For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.

Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.

Please place your trust in us.

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