▶Main Features
· Wi-Fi + Bluetooth connection
· Dimension: 86 mm × 86 mm × 37 mm
· Installation: Screw-in Bracket or Din-rail Bracket
· CT Clamp Available at: 80A, 120A, 200A, 300A, 500A, 750A,1000A
· External Antenna(Optional)
· Support 3-Phase, Split-Phase, and Single-Phase System
· Measure Real-time Voltage, Current, Power Factor, Active Power and Frequency
· Support Bi-directional Energy Measurement (Energy Usage/Solar Power Production)
· Three Current Transformers for Single-Phase Application
· Tuya compatible or MQTT API integration, compatible with Amazon Alexa, Google Home, Apple Homekit and Home Assistant systems
▶Applications
· Real-time monitoring of electrical circuits, phases, and energy consumption
· Sub-metering for building energy monitoring and multi-circuit analysis
· Suitable for residential, commercial, and solar energy monitoring applications
· MQTT integration for BMS / Smart bulding system.
▶Certifications & Reliability
The PC321 smart energy meter is designed for residential and commercial environments, featuring wide voltage power supply, long-term stable online operation, and accurate data monitoring. It complies with typical European standards and is CE and RoHS certified, with additional certifications available upon request from ODM clients.
▶PC321 Wifi Smart Power meter Wiring Video
▶Flexible Installation for Multiple Power Systems
The PC321 WiFi Smart Energy Meter supports multiple electrical system configurations, including single-phase, split-phase, and three-phase installations.
▶ MQTT Connection to Private Server or Home Assistant Diagram
Smart energy meters with multiple wireless protocols,such as MQTT/HTTP/Modbus TCP, support EMS,BMS system integration into your private server or open-source smart home platform, such as home assistants, OpenHAB.You don't even need to download third-party apps, just connect to the device's Access Point and use the browser of your phone or computer, then could monitor the voltage,current,power,frequency,etc. in real time.
FAQ:
Q1.Does the Smart Power Meter(PC321) support both single-phase and three-phase systems?
→ Yes, it supports Single Phase/Split Phase/Three Phase power monitoring, making it flexible for residential and commercial projects.
Q2.What CT clamp ranges are available?
→ The PC321 works with CT clamps from 80A up to 1000A, suitable for HVAC, solar, and EV energy management applications.
Q3.Is this Wifi Energy meter Tuya-compatible?
→ Yes, it fully integrates with Tuya IoT platform for remote monitoring and control.
Q4.Can PC321 integrate with BMS/EMS through MQTT?
→ Yes.The MQTT version supports custom integration with third-party IoT platforms.
Q5.Does PC321 support bidirectional metering?
→ Yes. It measures both energy import and export, ideal for solar PV systems.
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Connectivity
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Wi-Fi
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• 802.11 b/g/n @2.4GHz
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BLE
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• For Pairing
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RF Characteristics
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• Operating frequency: 2.4GHz
• External magnetic antenna
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Physical Specifications
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Operating Voltage
(RMS for each phase)
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• 90~277 Vac 50/60Hz
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Supported Systems
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• Single-Phase
• Split-Phase
• Three-Phase up to 480Y/277VAC
(No Delta/wye/Y/Star Connection)
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Voltmeters Accuracy
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• ±1%
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Ammeters Accuracy
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• 80A CT: ±1%（1-80A），±2%（0-1A）
• 120A CT: ±1%（2-120A），±2%（0-2A）
• 200A CT: ±1%（2-200A），±2%（0-2A）
• 300A CT: ±1%（6-300A），±2%（2-6A），±5%（0-2A）
• 500A CT: ±1%（6-500A），±2%（2-6A），±5%（0-2A）
• 750A CT: ±1%（6-750A），±2%（2-6A），±5%（0-2A）
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Clamp Inner
Dimension
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• 80A (default): Ø10mm
• 120A(optional): Ø16mm
• 200A(optional): Ø20mm
• 300A(optional): Ø24mm
• 500A(optional): Ø36mm
• 750A(optional): Ø51mm
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Reporting Cycle
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• Every 15 seconds
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Operating
environment
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• Temperature: -20 ℃~+55 ℃
• Humidity: ≤ 90% non-condensing
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Mount Type
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• Wall mounting (default)
• DIN rail mounting (optional)
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Dimension
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• 86(W) x 37(D) x 86(H)mm
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Certification
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•CE
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