▶Main Features
• Tuya compliant for smart energy monitoring and automation
• Compatible with single-phase electrical systems
• Measures real-time voltage, current, frequency, power factor, active power, and energy consumption
• Supports bidirectional energy measurement for both energy consumption and solar energy production
• Built-in Max. 16A dry contact relay for remote switching, scheduling, and load control
• Supports relay automation based on energy data or Tuya smart scenes
• Provides overcurrent and overvoltage protection for improved system safety
• Restores the previous relay status automatically after power recovery
• Supports dual-load monitoring with optional dual CT clamps
• Displays historical energy data by day, week, month, and year
• Compact design for quick and easy installation
• Supports OTA (Over-the-Air) firmware updates
• Supports MQTT integration for IoT platforms, EMS, and third-party systems
• Compatible with Home Assistant for local energy monitoring and automation
▶Recommended Use Cases
• Residential energy monitoring and smart home automation
• Smart building energy sub-metering
• HVAC equipment monitoring and relay-based load control
• Solar PV energy monitoring and bidirectional energy measurement
• OEM integration into third-party monitoring platforms
• MQTT and Home Assistant energy management projects
• Light commercial energy monitoring applications
Manufacturing & Assembly of PC311 Energy Meter
The PC311 energy meter is designed and assembled in-house, covering key processes from PCB integration to final product assembly. Each unit is built with carefully selected components and undergoes structured production procedures to ensure consistent performance and measurement accuracy.
FAQ:
Q1. Is PC311 single-phase or three-phase?
A. PC311 is a single-phase Wi-Fi power clamp meter. (Optional dual CTs for two loads in single-phase.)
Q2. How often does smart power meter report data?
A. Default every 15 seconds.
Q3. What connectivity does it support?
A. Wi-Fi 2.4 GHz (802.11 b/g/n, 20/40 MHz) and Bluetooth LE 4.2; internal antenna.
Q4. Is it compatible with Tuya and automation?
A. Yes. It’s Tuya-compliant and supports automation with other Tuya devices/cloud.
Q5. Can the PC311 remotely control electrical loads?
A. Yes. The PC311 includes a built-in 10A dry contact relay that supports remote switching, scheduled control, and automation through the Tuya platform. It can be used to control HVAC equipment, lighting circuits, pumps, water heaters, and other electrical loads while monitoring energy consumption.
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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
• Internal antenna
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Physical Specifications
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Operating
Voltage
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• 90~277 Vac 50/60Hz
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Supported
Systems
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• Single-Phase
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Power
Consumption
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• <2W
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Voltmeters
Accuracy
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• ±1%
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Ammeters
Accuracy
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• 20A CT: ±1%（1-20A），±2%（0-1A）
• 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）
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Clamp Inner
Dimension
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• 20A (optional): Ø5mm
• 80A (default): Ø10mm
• 120A(optional): Ø16mm
• 200A(optional): Ø20mm
• 300A(optional): Ø24mm
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Relay Type
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• Max.16A dry contact relay
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Reporting Cycle
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• Energy data: every 15 seconds
• Relay status: immediately
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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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• Sticker
• DIN rail Bracket
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Dimension
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• 52(W) x 23(D) x 46(H)mm
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Certification
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•CE
•FCC
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