Editorial Technical Reference

Energy Meter

This page explains how Energy Meter is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

An energy meter, also known as an electricity meter or watt-hour meter, is an electrical instrument that measures the amount of electric energy consumed by a residence, business, or electrically powered device.

Product Specifications

Technical details and manufacturing context for Energy Meter

Definition
An energy meter, also known as an electricity meter or watt-hour meter, is an electrical instrument that measures the amount of electric energy consumed by a residence, business, or electrically powered device. It is typically calibrated in billing units, such as kilowatt-hours (kWh), and is fundamental for utility billing, energy management, and monitoring electrical loads in industrial, commercial, and residential applications. This directory entry covers a three-phase electronic energy meter designed for DIN rail mounting, with a nominal voltage rating of 3×230/400 V and a current rating of 5–100 A. It features an accuracy class of 1.0 per IEC 62053-21, operates at a frequency of 50 Hz, and includes an LCD display. The meter supports Modbus-RTU communication protocol, making it suitable for integration into building management or industrial monitoring systems. Its operating temperature range is -25 to 55 °C, with a storage range of -40 to 70 °C, and it can withstand humidity up to 95% RH (non-condensing). The housing is rated IP54 for indoor use, providing dust and splash protection, and the insulation class is Class II, meaning double insulation without the need for an earth connection. Power consumption per phase is less than 2 W, and the weight ranges from 0.8 to 1.2 kg depending on the communication module. Dimensions are 100×36×68 mm (H×W×D) per DIN 43864. The meter is constructed with a polycarbonate housing, a printed circuit board (PCB), a current transformer (CT) core, and an LCD display. It complies with relevant IEC standards for metering, including IEC 62052-11 for general requirements and IEC 62056-21 for data exchange. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement or installation.
Working Principle
Energy meters operate by measuring the voltage and current in a circuit and integrating their product (power) over time to calculate energy consumption. Electromechanical meters use a rotating aluminum disc whose speed is proportional to the power, with a counter registering the revolutions. Electronic (static) meters use solid-state components like analog-to-digital converters (ADCs) and microprocessors to sample voltage and current waveforms, calculate instantaneous power, and digitally integrate it to determine total energy. Smart meters add communication modules (e.g., RF, PLC, cellular) for remote data reading and two-way communication. In this specific meter, the Modbus-RTU protocol enables data retrieval and configuration via a serial interface, allowing integration into supervisory systems.
Common Materials
Polycarbonate Housing, Printed Circuit Board (PCB), Current Transformer (CT) Core, LCD Display
Technical Parameters
ParameterTypical rangeNotes & selection driver
Voltage RatingRequired3×230/400 VNominal system voltage the meter is designed to operate with (e.g., 120V, 230V, 400V)IEC 62052-11
Current RatingRequired5–100 AMaximum continuous current the meter can measure (e.g., 5A, 100A), often specified as base current (Ib) and maximum current (Imax)IEC 62052-11
Accuracy ClassRequired1.0 classMeasurement accuracy expressed as a class index per standards like IEC 62053 (e.g., Class 0.5, Class 1, Class 2)IEC 62053-21
FrequencyRequired50 HzNominal AC frequency the meter is designed for (typically 50Hz or 60Hz)
Display TypeRequiredLCD typeType of readout display (e.g., LCD, LED, electromechanical counter)
Communication ProtocolModbus-RTU protocolFor smart meters, the data communication standard used (e.g., DLMS/COSEM, Modbus, M-Bus, Zigbee)IEC 62056-21
Operating Temperature-25–55 °CExtended range optionalIEC 62052-11
Storage Temperature-40–70 °CNon-operationalIEC 62052-11
Humidity≤95 % RHNon-condensingIEC 60068-2-78
Ingress ProtectionIP54Indoor use, dust and splash proofIEC 60529
Insulation ClassClass IIDouble insulation, no earth neededIEC 61010-1
Power Consumption<2 WPer phase, including communication
Weight0.8–1.2 kgDepending on communication module
Dimensions (H×W×D)100×36×68 mmStandard DIN rail mountDIN 43864

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Current Transformer (CT)
    Steps down the high line current to a lower, measurable value for the metering circuit, providing electrical isolation.
    Material: Ferromagnetic core (e.g., silicon steel, nanocrystalline) with copper windings
  • Voltage Sensor
    Measures the system voltage, typically through a voltage divider or potential transformer, for power calculation.
    Material: Precision resistors, potential transformer core and windings
  • Metering IC / ASIC
    The integrated circuit that samples voltage and current signals, calculates active/reactive energy, and manages data processing.
    Material: Silicon semiconductor
  • Microcontroller Unit (MCU)
    Processes data from the metering IC, manages display, handles communication protocols, and stores energy data.
    Material: Silicon semiconductor
  • LCD Display Module
    Provides a visual readout of energy consumption (kWh), voltage, current, power, and other parameters.
    Material: Liquid crystal display with glass substrate, polarizers, and driver electronics
  • Communication Module
    Enables data exchange for smart meters (e.g., remote reading, firmware updates) via wired or wireless interfaces.
    Material: PCB with RF transceiver (e.g., cellular, RF mesh) or power line communication (PLC) chipset
  • Optical Port (IR)
    Allows local data reading and configuration via an infrared optical probe, typically for utility personnel.
    Material: Infrared LED and phototransistor/receiver
  • Rotating Disc Optional
    Aluminium disc whose speed is proportional to power in the electromechanical meter.
  • Counter Optional
    Registers the disc revolutions to accumulate the energy reading.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Energy Meter.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
current: Up to 100A continuous
voltage: Up to 600V AC
frequency: 45Hz to 65Hz
temperature: -40°C to +70°C
accuracy class: Class 0.5S to Class 2
Media Compatibility
✓ Residential/Commercial AC Power ✓ Industrial Three-Phase Systems ✓ Renewable Energy Installations
Unsuitable: High-voltage DC transmission lines (>1000V DC)
Sizing Data Required
  • Nominal Voltage (V)
  • Maximum Current (A)
  • Accuracy Class Requirement

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sensor Drift/Calibration Error
Cause: Environmental factors (temperature, humidity), aging components, or contamination affecting measurement accuracy.
Electrical Component Failure
Cause: Power surges, voltage fluctuations, or prolonged exposure to harsh conditions leading to circuit board or component degradation.
Maintenance Indicators
  • Inconsistent or erratic readings compared to baseline data
  • Audible buzzing, clicking, or complete silence from the meter when operational
Engineering Tips
  • Implement regular calibration schedules and environmental monitoring to maintain accuracy
  • Install surge protection devices and ensure stable power supply to prevent electrical damage

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 62053-21: Electricity metering equipment - Particular requirements - Static meters for active energy (classes 0.5, 1 and 2) ANSI C12.20: Electricity Meters - 0.2 and 0.5 Accuracy Classes EN 50470-1: Electricity metering equipment (a.c.) - Part 1: General requirements, tests and test conditions - Metering equipment (class indexes A, B and C)

Quoted from the published standard.

Manufacturing Precision
  • Accuracy: +/-0.5% for Class 0.5 meters at reference conditions
  • Starting current: 0.4% of basic current for Class 0.5 meters
Quality Inspection
  • Accuracy Verification Test (load point testing at various currents and power factors)
  • Environmental Test (temperature cycling, humidity, and electromagnetic compatibility per IEC 62053-21)

Manufacturers of Energy Meter

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Acrel Co., Ltd.
Shanghai, CN
CE IEC VDE
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Din Rail Energy Meter”
View source page ↗ acrel-electric.com · checked 2026-08-22
CHINT Group
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Electricity Meter”
View source page ↗ chintglobal.com · checked 2026-08-22
CHYT
Zhejiang, CN
120 staff
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Electricity Meter”
View source page ↗ chyt-solar.com · checked 2026-08-22
Huayi Electric Co., Ltd.
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Electric Energy Meters”
View source page ↗ heag.cn · checked 2026-08-22
Anssin Electric
Yueqing, Zhejiang, CN
Also makes: Feed Box, Circuit Breaker, Float Switch and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Energy meter”
View source page ↗ anssin.com · checked 2026-09-08
Beijing Huazheng Technology Co.,Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Energy Meter Calibrator”
View source page ↗ beijing-huazheng.com · checked 2026-09-02
Blue Jay
Chongqing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Multi Channel Energy Meter”
View source page ↗ cqbluejay.com · checked 2026-08-27
CNC Electric
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Energy Meter”
View source page ↗ cncele.com · checked 2026-08-28
DEGSON
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Panel-mounted energy meter”
View source page ↗ degson.com · checked 2026-08-22
Guangdong Yada Electronics Co., Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “AC Energy Meter”
View source page ↗ yada-electronics.com · checked 2026-09-15
Hangzhou Fray Tech Co., Ltd.
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Electricity Meter Gateway”
View source page ↗ fraysolutions.com · checked 2026-09-01
Hunan HKT Technology Co., Ltd.
Changsha, Hunan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “LoRaWAN THREE-PHASE ELECTRICITY METER”
View source page ↗ hktlora.com · checked 2026-09-02
View All Factories

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Share this page
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Commonly Integrated Components

Flange Assembly

A structural component that provides mechanical connection and sealing interface in high-voltage insulating bushings.

Explore Specs →
Slurry Supply System

A system that precisely meters and delivers electrode slurry to the coating head in lithium-ion battery electrode production.

Explore Specs →
Voltage Control Unit

A precision electronic component that regulates and adjusts the output voltage in an Industrial Dielectric Strength Tester.

Explore Specs →
Main Circuit Breaker

Primary protective device in a smart home electrical panel that controls and safeguards the entire electrical circuit.

Explore Specs →

Frequently Asked Questions

What is the accuracy class of this energy meter?

The accuracy class is 1.0, as per IEC 62053-21. This indicates a permissible error of ±1% under specified conditions. Always confirm the exact accuracy for your application with the manufacturer.

Can this meter be used for residential billing?

While it is a three-phase meter suitable for commercial or industrial use, it can also be used in residential settings with three-phase supply. However, local utility regulations may require specific certifications or accuracy classes. Verify with the utility and manufacturer.

What communication protocol does it support?

It supports Modbus-RTU, a widely used serial protocol for industrial automation. This allows remote reading and integration with energy management systems. Ensure your system is compatible with Modbus-RTU.

What are the environmental limits for operation?

The operating temperature range is -25 to 55 °C, storage -40 to 70 °C, and humidity up to 95% RH non-condensing. The housing is IP54, meaning protection against dust and splashing water. Do not expose to condensing conditions or outdoor environments without additional protection.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Energy Meter

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at [email protected].

Need to Manufacture Energy Meter?

Compare manufacturer profiles with relevant product and process capability.

Previous Product
Wire Tensioning System
Last Product
Get QuotesChat