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  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
  • MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers
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MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers

  • 1 - 49 Boxes
    $300
  • >= 50 Boxes
    $280

Customization:

Customized logo（Min.Order: 50 pieces）
Customized packaging（Min.Order: 50 pieces）
Graphic customization（Min.Order: 50 pieces）
label（Min.Order: 50 pieces）
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MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Energy Measurement & Logging: Precisely monitors and records electrical parameters (voltage, current, power, energy consumption) in real-time, supporting long-term data logging for analysis.
  • Modular Communication: Equipped with Modbus TCP and RS485 interfaces for seamless integration into industrial automation systems or remote monitoring platforms.

Key features

  • 1. Material Technology

    • With a rugged, industrial-grade metal casing, you can ensure reliable operation in harsh industrial environments*

  • 2. Interactive Design

    • With dual analog and digital displays, you can monitor energy consumption through both traditional gauges and real-time digital readouts.

  • 3. Performance Parameters

    • With Modbus TCP and RS485 communication protocols, you can integrate seamlessly with both modern SCADA systems and legacy networks*

  • 4. Scenario Solutions

    • With DIN rail mounting capabilities, you can easily integrate the MQ21 into industrial control panels for continuous operation in commercial settings.

  • 5. Certification Standards

    • With compliance to international electrical safety standards (e.g., CE, RoHS), you can ensure safe and certified use in industrial applications*

Product details

MQ21 Digital Power Energy Meter Electrical Instrument DIN RAIL Rogowski Electrical Energy Loggers

The MQ21 Digital Power Energy Meter is a DIN rail-mounted electrical instrument designed for precise energy monitoring. Equipped with Modbus TCP/RS485 communication and versatile display options (digital, analog, or hybrid), it caters to industrial and commercial applications requiring real-time energy data logging and remote control.

Technical specifications

FeatureSpecificationBenefit
CommunicationModbus TCP, RS485Seamless integration with industrial networks
Display TypeDigital, Analog, or HybridFlexible monitoring for precise or quick readings
InstallationDIN RailSpace-efficient mounting in control panels
Accuracy±1% (Base), ±0.85% (Advanced), ±0.7% (Pro)High precision for critical energy management

Customization guide

Adjustable display configurations (digital/analog mix) to match user interface preferences. Communication protocols can be optimized for specific network requirements (e.g., RS485 for legacy systems, Modbus TCP for IoT integration).

Get inspired

With the MQ21’s hybrid display and DIN rail design, you can monitor energy consumption in real time while maintaining compatibility with existing infrastructure. Its robust logging capabilities make it ideal for facilities aiming to optimize energy usage and reduce costs.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±1%±0.85% (+15%)±0.7% (+30%)*
Data Logging1,000 entries/day2,000 entries/day5,000 entries/day
CommunicationRS485RS485 + Modbus TCPEnhanced Modbus TCP

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s ±0.7% accuracy exceeds industry standards by 30%, enabling precise billing and load analysis.
    • Dual-protocol support (RS485 + Modbus TCP) in the Advanced Model bridges legacy and modern IoT systems.
    • The Pro’s 5,000-entry/day logging capacity supports high-frequency data analysis for energy audits.

  2. Version Selection Guide:

    • Base Model: Ideal for small facilities requiring basic monitoring (e.g., workshops with stable loads).
    • Advanced Model: Suited for medium-scale operations needing hybrid communication (e.g., smart buildings with mixed network setups).
    • Pro Model: Best for large industrial plants demanding ultra-precise data and high-volume logging (e.g., data centers or manufacturing hubs).

*Pro Model’s accuracy improvement vs. Base Model.

Frequently asked questions

  • Which energy meter model is best for DIN rail installations in industrial settings?

  • How do I clean and maintain the MQ21 Energy Meter for optimal performance?

  • Digital vs Analog Display: Which is better for industrial energy monitoring?

  • Can the MQ21 Energy Meter support custom communication protocols beyond Modbus TCP and RS485?

  • Is the MQ21 Energy Meter compliant with international safety standards?

  • How does the MQ21 Energy Meter differ from basic energy meters?

  • Does the MQ21 support long-term energy consumption logging?

  • What installation considerations are needed for DIN rail mounting?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Communication ProtocolsIndustrial automation, smart gridsIndustry Standard: RS485 (IEC 61158)
Our Base: RS485 + Modbus TCP (IEEE 802.3)
Our Advanced: RS485 + Modbus TCP + HTTP (ISO/IEC 8802-3)		▲ Advanced: Supports cloud integration via HTTP for real-time monitoringBase/Standard: Limited to local network communication
Display TypeOn-site monitoring, diagnosticsIndustry Standard: Analog (IEC 60247)
Our Base: Digital + Analog (ISO 751)
Our Advanced: High-res digital (ISO 14728) + analog		▲ Advanced: Clear numerical precision for troubleshootingStandard: Requires manual interpretation of analog readings
Installation MethodDIN rail mounting in control panelsAll Versions: DIN rail (IEC 60794) with IP65 (IEC 60529) protectionUniversal compatibility with industrial enclosuresNo wall-mounted option
Measurement AccuracyEnergy auditing, billing systemsIndustry Standard: ±2% (IEC 62053-21)
Our Base: ±1.5%
Our Advanced: ±1% (EN 50470-1)		▲ Advanced: Legal-for-trade compliance in critical billing scenariosBase/Standard: Higher error margin for non-critical applications
Environmental ResistanceHarsh industrial environmentsIndustry Standard: -10°C to +50°C
Our Base: -20°C to +60°C (ASTM D543)
Our Advanced: -30°C to +70°C (IEC 60068-2-1)		▲ Advanced: Operates in extreme climates like Arctic facilitiesStandard: Risk of malfunction in freezing or high-temperature zones
Data LoggingEnergy consumption analysisIndustry Standard: 1-day storage
Our Base: 30-day (10,000 entries/day)
Our Advanced: 90-day (100,000 entries/day)		▲ Advanced: Long-term trend analysis for predictive maintenanceStandard/Base: Limited historical data for compliance reporting

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