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SFM472 Series Three Phase Multifunction Meter - Reliable China Suppliers & Factory for Electrical Monitoring Solutions

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Enhanced Product Description: SFM472 Series Three-Phase Multifunctional DIN-Rail Meter

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Introducing the SFM472 series three-phase multifunctional DIN-rail meter, a top-tier electrical monitoring device designed for efficient use in China’s three-phase four-wire (3P4W) power grid systems. As a preferred choice among suppliers and factories, this compact DIN-rail meter is optimized for commercial, industrial, and utility-scale applications. It offers precise, real-time measurements of crucial power parameters, making it an essential tool for effective power monitoring and management in modern electrical systems.

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    Product Details

    Product Description

    ⚡ Core Measurement Capabilities

    The SFM472 series meter is calibrated to provide accurate readings of the following key electrical parameters, supporting both balanced and unbalanced load conditions:

    • Voltage: Line-to-line (L1-L2, L1-L3, L2-L3) and line-to-neutral (L1-N, L2-N, L3-N) RMS voltage
    • Current: RMS current for each of the three phases
    • Power: Active power, reactive power, and apparent power (per phase and total system values)
    • Frequency: Grid frequency fluctuations
    • Energy: Import (consumed) and export (fed-back) active and reactive energy, with cumulative metering functionality

    🔗 System Integration & Application Flexibility

    Designed for versatility, the SFM472 series meter caters to dual operational modes to meet diverse on-site requirements:

    1 Local Display Function

    The meter features an on-board display that provides real-time visualization of measured parameters, enabling field personnel to conduct quick spot checks and verify system performance without additional equipment.

    2 Centralized Measurement & Control System Integration

    Beyond local monitoring, the meter's detection data can be seamlessly transmitted to industrial control equipment (such as PLCs, RTUs, and SCADA systems) and host computers via standard communication protocols. This integration enables the construction of a unified, centralized measurement and control network, supporting remote data acquisition, real-time load analysis, energy consumption auditing, and automated power system management.

    🏭 With its robust measurement precision, compact DIN-rail form factor, and flexible integration capabilities, the SFM472 series meter is ideally suited for real-time power monitoring in 3P4W systems across manufacturing facilities, commercial buildings, data centers, and utility substations.
    Technical Parameters
    Parameters Index
    Input Voltage Voltage (Un): 3×57.7/100…240/415 VAC
    Voltage range: 0.8Un – 1.15Un
    Current Directly connected: 0.25 – 5(80) A
    Overcurrent withstand: 30Imax for 0.01s
    Frequency 50 / 60 Hz
    Wiring Connecting capacity: from 16 to 25 mm2
    Display LCD with white backlight  |  Max reading: 999999 kWh
    Accuracy Active energy: Class 1, Class B
    Output Communication Interface: RS485  |  Protocol: Modbus RTU
    Pulse Pulse constant: 800 imp/kWh
    Power Consumption < 2W / 10VA
    Withstand AC Voltage 4 kV / 1 min
    DC Impulse 6 kV – 1.2 µs waveform
    Climate Environment Temperature Operating temperature: -25°C ~ +55°C
    Storage temperature: -40°C ~ +70°C
    Humidity ≤ 95% non-condensing, no corrosive gas
    Altitude ≤ 2000 m
    Mechanical Environment M1
    Electromagnetic Environment E2
    Frequently Asked Questions
    Q What wiring configurations does the SFM472 series meter support?
    The SFM472 series meter is designed for 3-phase 4-wire (3P4W) systems. It supports both balanced and unbalanced load conditions, measuring line-to-line and line-to-neutral voltages across all three phases, making it suitable for a wide range of industrial and commercial power systems.
    Q What communication protocol does the SFM472 use for system integration?
    The SFM472 uses an RS485 interface with the Modbus RTU protocol. This allows seamless integration with PLCs, RTUs, SCADA systems, and host computers, enabling centralized data acquisition, remote monitoring, and automated power management.
    Q What is the accuracy class of the SFM472 energy meter?
    The SFM472 series meter achieves Class 1 and Class B accuracy for active energy measurement, meeting international standards for precision metering in commercial and industrial applications.
    Q What operating temperature range can the SFM472 handle?
    The SFM472 operates reliably in temperatures ranging from -25°C to +55°C, and can be stored in environments from -40°C to +70°C. It is also rated for altitudes up to 2000 m and humidity up to 95% non-condensing, making it suitable for demanding industrial environments.
    Q Does the SFM472 support both energy import and export metering?
    Yes. The SFM472 supports cumulative metering for both import (consumed) and export (fed-back) active and reactive energy. This makes it well-suited for installations with on-site generation such as solar PV systems, where bidirectional energy flow monitoring is required.
    Q Where is the SFM472 series meter typically installed?
    The SFM472 features a compact DIN-rail form factor, making it easy to install in standard electrical panels and distribution boards. It is commonly deployed in manufacturing facilities, commercial buildings, data centers, and utility substations for real-time power monitoring and energy management.