Editorial Technical Reference

Smart Meter

This page explains how Smart 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 electronic device that measures and records electricity consumption with two-way communication capabilities for remote monitoring and control.

Product Specifications

Technical details and manufacturing context for Smart Meter

Definition
A smart meter is an advanced metering infrastructure device that digitally measures electricity consumption in real-time, typically at intervals of an hour or less. It enables two-way communication between the meter and the central system, allowing utilities to remotely collect consumption data, detect outages, and implement demand response programs while providing consumers with detailed usage information. The device is designed for three-phase networks with a nominal voltage of 3×230/400 V and a current rating of 5–100 A, conforming to IEC 62052-31 for accuracy and safety. It features an accuracy class of 1.0 per IEC 62053-21 and supports the DL/T 645-2007 communication protocol. The operating temperature range is -40 to 70 °C, and the meter is rated IP54 for dust and splash protection. It has double insulation (Class II) and consumes less than 2 W per phase in the voltage circuit. The device stores up to 128 days of consumption data locally and weighs between 1.5 and 2.0 kg depending on the communication module. Dimensions are 170×120×70 mm (W×H×D) per DIN 43857. The housing is made of polycarbonate, with internal components including a printed circuit board, copper conductors, and silicon semiconductors. The working principle involves current transformers or Rogowski coils for current measurement and voltage sensors for voltage, with a microcontroller calculating power using P = V × I × cos(φ). Data is transmitted via communication modules such as RF mesh, cellular, or PLC. Advanced features include time-of-use recording, tamper detection, and remote disconnect. For procurement, verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
Smart meters measure electrical current using current transformers or Rogowski coils and voltage using voltage sensors. A microcontroller processes these measurements to calculate power consumption using the formula P = V × I × cos(φ). The calculated data is stored in memory and transmitted via communication modules (such as RF mesh, cellular, or PLC) to utility servers. Advanced models include time-of-use recording, tamper detection, and remote disconnect capabilities. The meter operates within specified voltage and current ranges and complies with relevant IEC standards for accuracy and safety.
Common Materials
Polycarbonate Housing, Printed Circuit Board, Copper Conductors, Silicon Semiconductors
Technical Parameters
ParameterTypical rangeNotes & selection driver
Voltage RatingRequired3×230/400 VNominal operating voltage of the meterIEC 62052-31
Current RatingRequired5–100 AMaximum continuous current the meter can measureIEC 62052-31
Accuracy ClassRequired1.0 classMeasurement accuracy classification (e.g., Class 0.5, Class 1)IEC 62053-21
Communication ProtocolRequiredDL/T 645-2007 protocolCommunication standard used (e.g., DLMS/COSEM, ANSI C12.18, Modbus)DL/T 645
Operating TemperatureRequired-40–70 °CTemperature range for proper operationIEC 62052-31
Data Storage Capacity128 daysNumber of days of consumption data stored locally
Frequency50 Hz60 Hz on requestIEC 62052-31
Power Consumption<2 WPer phase; voltage circuit ≤2 W, current circuit ≤1 VAIEC 62052-31
Insulation ClassClass IIDouble insulation, no protective earth requiredIEC 62052-31
Degree of ProtectionIP54Dust-protected and splash-proofIEC 60529
Weight1.5–2.0 kgDepending on communication module
Dimensions (W×H×D)170×120×70 mmStandard three-phase meter formDIN 43857

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
  • Measurement Unit
    Measures voltage, current, and calculates power consumption using analog-to-digital converters and processing algorithms
    Material: Silicon-based integrated circuits, precision resistors, and capacitors
  • Communication Module
    Enables two-way data transmission between the meter and utility systems using wireless or wired protocols
    Material: RF transceiver chips, antennas, and network interface components
  • Display Unit
    Shows consumption data, tariff information, and status indicators to end users
    Material: LCD panel with backlight and protective glass
  • Power Supply
    Provides regulated power to all electronic components from the main electrical supply
    Material: Transformer, rectifiers, voltage regulators, and capacitors
  • Memory Module
    Stores consumption data, configuration settings, and firmware
    Material: Flash memory chips and supporting circuitry
  • Optical Port
    Allows local data reading and configuration via infrared communication
    Material: Infrared LED and photodiode with optical window
  • Load Control Relay
    Enables remote disconnection and reconnection of electrical supply for demand response or non-payment
    Material: Electromechanical relay with control circuitry
  • Current Transformers
    Step the line current down to a measurable level for the metering circuit.
  • Voltage Sensors
    Sense the line voltage for the power calculation.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Smart Meter.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure only
other spec: Humidity: 5% to 95% RH non-condensing, IP54 rating for dust/water resistance
temperature: -40°C to +70°C
Media Compatibility
✓ Residential electricity distribution ✓ Commercial building power monitoring ✓ Industrial facility energy management
Unsuitable: Explosive atmospheres (ATEX Zone 0/1) or high-voltage direct measurement (>1000V)
Sizing Data Required
  • Nominal voltage and current rating (e.g., 230V, 100A)
  • Communication protocol requirements (e.g., Zigbee, LoRaWAN, cellular)
  • Installation type (indoor/outdoor, DIN rail or panel mount)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Communication Module Failure
Cause: Environmental factors such as moisture ingress, temperature extremes, or electromagnetic interference degrading electronic components, leading to loss of data transmission or connectivity.
Battery Depletion
Cause: Premature battery drain due to excessive communication attempts, high ambient temperatures accelerating chemical degradation, or manufacturing defects in the power management circuitry.
Maintenance Indicators
  • Intermittent or complete loss of data transmission (e.g., no readings received by utility systems for extended periods)
  • Visible physical damage such as cracked casing, moisture inside the display window, or corrosion on electrical contacts
Engineering Tips
  • Install smart meters in protected locations with adequate ventilation, away from direct sunlight, moisture sources, and electromagnetic interference to reduce environmental stress.
  • Implement regular firmware updates and remote diagnostics to monitor battery health, communication performance, and detect early signs of component degradation before failure occurs.

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 62052-11:2020 (Electricity metering equipment - General requirements, tests and test conditions) ANSI C12.1-2022 (Code for Electricity Metering) EN 50470-1:2022 (Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 1: Metering equipment (class indexes A, B and C))

Quoted from the published standard.

Manufacturing Precision
  • Accuracy Class: +/-0.5% for active energy measurement (Class 0.5 per IEC 62053-21)
  • Environmental Tolerance: Operating temperature range -40°C to +70°C (per IEC 62052-11)
Quality Inspection
  • Accuracy Verification Test (using reference standard meter and controlled load conditions)
  • Environmental Stress Screening (temperature cycling, humidity, and vibration tests per IEC 62052-11)

Manufacturers of Smart 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.

ETEK Microelectronics
Jiangsu, CN
ISO 26262
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter”
View source page ↗ etekmicro.com · checked 2026-08-22
Chengdu Ebyte Electronic Technology Co., Ltd.
Chengdu, Sichuan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter”
View source page ↗ cdebyte.com · checked 2026-09-06
EFPCB
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter Solution”
View source page ↗ efpcb.com · checked 2026-08-30
GoodWe
Hebei, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter”
View source page ↗ goodwe.com · checked 2026-08-29
HOPERF (Shenzhen Hope Microelectronics Co., Ltd.)
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter Reading”
View source page ↗ hoperf.com · checked 2026-09-02
Shanghai Fudan Microelectronics Group Co., Ltd.
Shanghai, CN
Also makes: Encryption Chip
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meters”
View source page ↗ fm-chips.com · checked 2026-09-16
Shenzhen Star Instrument Co.,Ltd.
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meters”
View source page ↗ szstar.com · checked 2026-09-02
Shenzhen World Industrial Co.,Ltd
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter”
View source page ↗ worldgj.com · checked 2026-08-29
Wenzhou Xinkong Import & Export Co., Ltd.
Yueqing, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Meter”
View source page ↗ xinkelec.com · checked 2026-09-14
Xiamen Jinbeili Electronics Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “ADW300 Wireless Smart Energy Meter”
View source page ↗ jblec.com · checked 2026-09-04
Yueqing Logos Electrical Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Multifunctional Smart Meter”
View source page ↗ logosmeter.com · checked 2026-08-27
Zhejiang Chint Instrument & Meter Co., Ltd.
Hangzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Smart Energy Meter”
View source page ↗ chintmeter.com · checked 2026-09-10
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Frequently Asked Questions

What communication protocols does this smart meter support?

The smart meter supports the DL/T 645-2007 communication protocol, as listed in the technical parameters. This protocol is commonly used for electricity metering in certain regions. For other protocols, verify with the manufacturer.

What is the accuracy class of this meter?

The meter has an accuracy class of 1.0 according to IEC 62053-21. This indicates the permissible error limits for active energy measurement. Always confirm the accuracy class for your specific application.

Can this meter be used outdoors?

The meter has an IP54 degree of protection, meaning it is dust-protected and splash-proof. It is suitable for indoor and outdoor installations where it is not exposed to heavy rain or prolonged submersion. Check the manufacturer's guidelines for installation.

What is the data storage capacity of this meter?

The meter can store up to 128 days of consumption data locally. This allows for historical data retrieval even if communication is temporarily lost. The actual storage duration may vary depending on the logging interval and configuration.

Data Basis

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

Preliminary Technical Classification
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