PC321-W Single/Three-Phase WiFi Smart Energy Clamp
PC321-W
WiFi smart energy clamp with MQTT & HTTP API for direct-to-cloud integration. 2-second reporting, CT options from 80A to 1000A. Measures real-time voltage, current, power factor, active power and total energy for single and three-phase systems.
Overview
PC321-W Power Clamp helps you monitor the amount of electricity usage in your facility by connecting the clamp on to the power cable. It can also measure Voltage, Current, PowerFactor, ActivePower.
Key Features
- Single/3 - phase electricity compatible
- Three current transformers for Single phase application
- Measures real-time Voltage, Current, PowerFactor, ActivePower and total energy consumption
- Display the current temperature of the device
- Suitable for both residential and commercial application
- Lightweight and easy to install
- External antenna prevents signal from being shielded
Specifications
| Accuracy | â€100W: ±2W; >100W: ±2% |
|---|---|
| Voltage | 100~240 Vac 50/60Hz |
| Current | 80A~1000A (CT dependent) |
| Frequency | 50/60Hz |
| Protocol | WiFi 802.11 b/g/n (20/40MHz) |
| Wi-Fi | 802.11 b/g/n (20/40MHz) |
| MQTT | MQTT API â direct-to-cloud integration |
| HTTP | HTTP API â direct-to-cloud integration |
| RF Range | Output Power: Up to +20dBm; external antenna |
| Dimensions | 86(L) x 86(W) x 37(H) mm |
| Operating Temp | -20â to +55â (â€90% non-condensing) |
| Measured Parameters | Voltage, Current, Power Factor, Active Power, Total Energy; device temperature display |
| Reporting Cycle | Every 2 seconds |
| Clamp Inner Dimension | 80A (default): Ă10.6mm; 120A: Ă16.7mm; 200A: Ă21.1mm; 300A: Ă25.1mm; 500A: Ă36.7mm; 750A: Ă51.3mm; 1000A: Ă51.3mm |
| Certification | CE |
| Place of Origin | China |
| Brand | OWON |
Key Benefits
2-Second Reporting
Near-real-time energy data reported every 2 seconds for responsive monitoring.
CT Options 80A-1000A
Interchangeable CT clamps from 80A up to 1000A cover HVAC, EV and industrial loads.
MQTT + HTTP API
Direct-to-cloud integration via MQTT or HTTP API â no third-party cloud required.
External Antenna
Prevents signal shielding for reliable wireless communication in metal enclosures.
Ideal For
Common deployment scenarios where PC321-W Single/Three-Phase WiFi Smart Energy Clamp delivers the most value.
Smart Building Energy Monitoring
Real-time consumption data for commercial buildings with 2-second reporting granularity.
Solar Power Systems
Monitor generation and consumption to validate PV performance and self-consumption.
EV Charging Infrastructure
CT options up to 1000A suit EV charger circuits and charging station load tracking.
Facility Energy Management
Load analysis and efficiency optimization across industrial and commercial facilities.
Residential & Commercial Installations
Single, split and three-phase support with non-invasive CT clamp mounting.
HVAC Load Monitoring
CT range covers HVAC equipment circuits for energy allocation and efficiency checks.
Frequently Asked Questions
What is the PC321-W power clamp used for?
Can the meter monitor single-phase and three-phase electrical systems?
What electrical parameters can the device measure?
What current transformer options are available?
What types of projects typically deploy this power meter?
Related Products
Interested in PC321-W Single/Three-Phase WiFi Smart Energy Clamp?
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