1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Tuya WiFi Photovoltaic Power Meter 100A 3P4W 3Phase Recloser Switch Protector. This device integrates multiple protection functions, offering real-time monitoring and automatic power cutoff to safeguard electrical equipment from over-voltage, under-voltage, and over-current conditions. Its smart reclosing feature ensures continuous protection and convenience.
Image 1: Overview of the Tuya WiFi Photovoltaic Power Meter with its LCD display and smart features.
2. Key Features
- Premium Material: Constructed from flame-resistant material with built-in intelligent Tuya chips, ensuring wear resistance, interference resistance, high strength, and fine durability.
- Digital LCD Display: Features an LCD screen that simultaneously displays three real-time data points, providing accurate and easy-to-read information at a glance.
- Automatic Reclosing Protection: Automatically cuts off power supply during overvoltage or overcurrent events to protect appliances. Once the fault is cleared, it automatically recloses and restores power.
- Multi-Protections: Includes comprehensive protection against overvoltage, undervoltage, current limit, phase-break, zero-loss, phase sequence errors, voltage unbalance, and current unbalance.
- Mobile App Control: Connects via WiFi to the Tuya mobile application, allowing users to remotely set protection thresholds and control the switch from anywhere.
- Easy Wiring: Designed with large wiring ports to facilitate quicker and easier installation.
- Easy Installation: Compact size suitable for installation in distribution boxes or wall mounting. Features DIN rail type snap installation for buckle fixation without the need for screws.
- Wide Applications: Ideal for various settings including rental houses, shopping malls, schools, and factories. Recommended for use with high-power appliances prone to leakage, such as electric heaters, ovens, water heaters, refrigerators, and air conditioners.
3. Technical Specifications
| Feature | Specification |
|---|---|
| Product Name | Automatic Reclosing Protector |
| Material | Plastics |
| Display Type | LCD (Analog and Digital) |
| Rated Voltage | 380V |
| Output Voltage | 80-380V |
| Max Operating Current | 80A - 99A (100A) |
| Rated Frequency | 50Hz |
| Phase | Three Phase |
| Power Supply | AC |
| Connection Way | WiFi + Tuya APP |
| Operating Temperature | -20℃ to 60℃ |
| Dimensions (L*W*H) | 89 * 75 * 75mm / 3.50 * 2.95 * 2.95in |
| Item Weight | 450g / 0.99lb |
| DIY Supplies | Electrical |
| Certification | CE |
Image 2: Dimensional drawing of the device, showing its length, width, and height.
4. Package Contents
- 1 x Automatic Reclosing Protector
5. Installation
5.1 Mounting
The protector is designed for easy installation. Its compact size allows it to be mounted within a distribution box or directly on a wall. It features a DIN rail type snap installation mechanism, which means no screws are required. Simply align the device with a standard DIN rail and snap it into place using the buckle fixation.
Image 3: Rear view of the device showing the DIN rail type snap installation mechanism.
5.2 Wiring
The device is equipped with large wiring ports to simplify the connection process. Ensure all wiring is performed by a qualified electrician and adheres to local electrical codes and safety standards. Connect the three-phase (3P4W) power lines to the designated terminals. Refer to the wiring diagram for correct connections.
Image 4: Close-up of the digital LCD display and the large wiring ports for easy connection.
6. Operation
6.1 Digital LCD Display
The integrated LCD display provides real-time data for voltage (L1, L2, L3) and current. This allows for immediate monitoring of your electrical system's status.
6.2 Physical Button Control
The device features physical buttons for direct interaction. These buttons allow you to customize and set protection threshold values as needed. The sensitive operation ensures comfortable and precise adjustments.
Image 5: Detail of the physical buttons on the device for setting threshold values.
6.3 Mobile Application (Tuya APP) Control
For enhanced control and monitoring, download the Tuya mobile application. Once connected via WiFi, the app allows you to:
- Set and adjust protection thresholds remotely.
- Switch the protector on or off from any location.
- Monitor real-time energy data and protection status.
Image 6: The power meter controlled via the mobile application on a smartphone.
7. Multi-Protections
The device offers comprehensive protection features to ensure the safety and longevity of your electrical equipment:
- Overvoltage Protection: Automatically disconnects power if voltage exceeds a safe limit.
- Undervoltage Protection: Disconnects power if voltage drops below a safe threshold.
- Current Limit Protection: Prevents damage from excessive current draw.
- Phase-Break Protection: Detects and reacts to the loss of a phase in a three-phase system.
- Zero-Loss Protection: Ensures proper neutral connection.
- Phase Sequence Protection: Verifies correct phase rotation.
- Voltage Unbalance Protection: Monitors and protects against imbalances in phase voltages.
- Current Unbalance Protection: Monitors and protects against imbalances in phase currents.
Image 7: Diagram illustrating the various multi-protection capabilities of the device.
8. User Tips
- Regularly check the LCD display for real-time voltage and current readings to ensure stable operation.
- Utilize the Tuya app to customize protection thresholds according to the specific requirements of your connected appliances and local grid conditions.
- For optimal performance and safety, ensure the device is installed in a well-ventilated area and within its specified operating temperature range (-20℃ to 60℃).
- In case of frequent tripping, review the fault logs in the Tuya app to identify the specific protection triggered and address the underlying electrical issue.
9. Troubleshooting
9.1 Device Not Powering On
- Check all power connections to ensure they are secure and correctly wired.
- Verify that the input voltage is within the specified range (80-380V).
- Ensure the main circuit breaker supplying power to the device is in the ON position.
9.2 Frequent Tripping
- Review the protection thresholds set via physical buttons or the Tuya app. They might be too sensitive for your load.
- Check for actual overvoltage, undervoltage, or overcurrent conditions in your electrical system.
- Inspect connected appliances for faults that might be causing abnormal electrical behavior.
9.3 WiFi Connection Issues
- Ensure your WiFi network is 2.4GHz, as 5GHz networks may not be supported.
- Check the distance between the device and your WiFi router. Move them closer if necessary.
- Restart your WiFi router and the power meter.
- Verify that the Tuya app is updated to the latest version.
10. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase for any warranty claims.
