Power Factor Meter

Power Factor Meter for panel and power monitoring applications, with OEM/ODM customization, stable supply, and factory support for utility and industrial projects.

Tuya Smart 3 Phase WiFi Energy Meter 100A Din Rail Bidirectional Photovoltaic Power Consumption Monitor Switch PST RMDZW 3P

$25.18-26.50 /piece

Price varies depending on material, logo, quantity and customization requirements.

MOQ 1 piece
Model NO. EI-3978
Service OEM / ODM
Quality You Can Trust
Flexible & Scalable Solutions
Customizable Product Options
Comprehensive Specifications
Your Reliable Business Partner

Introduction

PhaseThree PhaseOutput VoltageAC 80-300V (Phase Voltage)
Accuracy ClassClass 1.0Basic Current10A
Max. Current100 ARated Current100A
Measuring Energy Range0-999999.9 kWh(0-3412141291.79btu)Operating Temperature-20℃ to 60℃
Display TypeDigital LCD Display with BacklightApplicationResidential, Commercial, Photovoltaic Solar System Solar Power Generation
FeatureBidirectional Metering, Over/Under Voltage Protection, Phase Loss Protection, Wifi APP Remote ControlDimensions89.5mm * 75.3mm * 58.3mm(3.52in*2.96in*2.30in)
Phase Configuration3-Phase 4-Wire SystemSmart ConnectivityWiFi 2.4GHz / Tuya Smart Life App
Installation Method35mm Standard Din Rail MountVoice Control CompatibilityAmazon Alexa, Google Home Assistant
Imbalance MonitoringThree-phase Current & Voltage ImbalanceBacklight Visual AlertWhite for Normal / Red for Relay Disconnected
Housing MaterialHigh-Temperature Resistance Flame-RetardantProtections Included11-in-1 Comprehensive Protection Grid
Wiring Port DesignTunnel-type Secure Single Channel WiringHistorical Data LogsHourly, Daily, Monthly, Annual Records on APP

We are China Loong Electrical Instrument Co., Ltd., a professional manufacturer and supplier specializing in Electrical Instrument. We have brought together and coordinated resources across the Electrical Instrument supply chain, enabling us to maintain consistent product quality and establish long-term partnerships with clients worldwide.

Our mission is to provide high-quality products and reliable service. We are committed to offering the following advantages:

  • Stable production system ensuring consistent quality, dependable supply, and standardized manufacturing management;
  • Strict quality control covering material selection, processing, surface finishing, and final packaging;
  • Variety of products and specifications to meet diverse project requirements and application scenarios;
  • OEM & customization support based on drawings, samples, or specific technical requirements;
  • Flexible packaging solutions to ensure safe handling and transportation of products;
  • Continuous improvement in products and services to better support customers in different markets.

If you are interested in our products, please feel free to contact us. We look forward to establishing long-term and mutually beneficial cooperation with you.

Copyright © 2026 China Loong Electrical Instrument Co., Ltd. All rights reserved.
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Tuya Smart 3 Phase WiFi Energy Meter 100A Din Rail Bidirectional Photovoltaic Power Consumption Monitor Switch PST RMDZW 3P

SKU: EI-3978

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