Structured Manufacturing Data (2026)

Energy Meter

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Energy Meter used in the Electrical Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Energy Meter is characterized by the integration of Current Transformer (CT) and Voltage Sensor. In industrial production environments, manufacturers listed on CNFX commonly emphasize Polycarbonate Housing construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A device that measures and records electrical energy consumption over time.

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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.
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.
Common Materials
Polycarbonate Housing, Printed Circuit Board (PCB), Current Transformer (CT) Core, LCD Display
Technical Parameters
  • Total electrical energy measured and recorded by the meter (kWh) Per Request
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

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Energy Meter.

Electricity Meter Smart Meter Watt-hour Meter KWH Meter Utility Meter industrial energy meter with CT core polycarbonate housing electrical meter energy consumption monitoring device LCD display energy meter for manufacturing communication protocol compatible 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

Compliance & Manufacturing Standards

Reference 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)
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)

Factories Producing Energy Meter

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Supply Chain Commonly Integrated Components

Stator Assembly

The stationary component of an electric motor that generates a rotating magnetic field when energized.

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Wire Tensioner

A device that applies and maintains precise tension on electrical wire during the winding process of transformers.

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Wire Guide System

A precision mechanical system that guides and positions wire during the winding process on a transformer winding machine.

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Counter System

A monitoring and control subsystem that tracks and records the number of winding turns during transformer coil production.

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Frequently Asked Questions

What is the typical accuracy class for this energy meter?

This energy meter typically features accuracy classes ranging from Class 0.2S to Class 1.0, ensuring precise measurement of electrical energy consumption for industrial applications.

Which communication protocols does this energy meter support?

The meter supports multiple communication protocols including Modbus, DLMS/COSEM, and M-Bus, allowing seamless integration with various industrial monitoring and control systems.

What are the standard voltage and current ratings available?

Standard configurations include voltage ratings from 110V to 480V and current ratings from 5A to 100A, with options for direct connection or current transformer (CT) based measurement.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Electrical Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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