Main Features：
• Tuya compliant with support for automation based on energy data and grid import/export
• Supports MQTT protocol for integration with IoT platforms, EMS, and BMS systems
• Compatible with Home Assistant for advanced smart home energy monitoring
• Compatible with single-phase, split-phase (120/240VAC), and 3-phase 4-wire (480Y/277VAC) systems
• Enables real-time monitoring of whole-home energy and selected circuits using CT clamps
• Supports monitoring of multiple circuits for detailed energy usage analysis
• Bi-directional energy measurement for tracking both energy consumption and production
• Measures voltage, current, power factor, active power, and frequency in real time
• Historical energy data visualization (day, month, year) for both consumption and production
• External antenna design improves signal stability and communication reliability
Use Cases：
• Multi-circuit energy monitoring for homes, apartments, and small commercial buildings
• Monitor HVAC systems, EV chargers, water heaters, and other electrical loads
• Integrate with smart energy apps or home automation systems
• Power disaggregation and load profiling projects
• Used by energy retrofit firms, solar installers, and smart panel builders
Example Application: Split-Phase Solar Energy Monitoring
The PC341 enables real-time monitoring in split-phase (120/240V) systems, widely used in North American homes. It tracks solar inverter output, grid consumption, and multiple branch circuits using CT clamps, providing clear visibility of energy flow for efficient residential energy management.
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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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• 200A CT: ±1%（2-200A），±2%（0-2A）
• 50A CT: ±1%（1-50A），±2%（0 -1A）
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Clamp Inner Dimension
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• 200A CT: Ø20mm
• 50A CT: Ø10mm
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Reporting Cycle
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• Every 15 seconds
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Main Current
Transformer(CT)
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• 3.5mm three-Pole audio connector with 1m cable
• 200A(Default)
• 120A(Optional)
• 80A(Optional)
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Sub Current
Transformer(CT)
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• 2.5mm three-Pole audio connector with 1m cable
• 50A
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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 or DIN rail mounting
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Certification
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•CE
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WiFi Multi-Circuit Power Meter PC341 | 3-Phase & Split-Phase