1. Introduction
The WTDZW-63A/N Smart PV Circuit Breaker is an advanced electrical protection device designed for photovoltaic (PV) systems and general household electricity management. It integrates multiple protection functions including over/under voltage, over current, and residual current (leakage) protection, along with smart features like electricity metering, remote control, and voice control via the Tuya Smart Life app. This manual provides essential information for the safe and effective installation, operation, and maintenance of your device.
2. Key Features
- Remote Control: Manage your circuit breaker from anywhere using the Tuya Smart Life mobile application.
- Voice Control: Compatible with smart home assistants for convenient voice-activated operation.
- Auto-Shift Current by Timeframe: Program current adjustments based on specific time schedules.
- Electricity Metering: Monitor real-time electricity consumption (kWh), voltage, and current.
- Over/Under Voltage Protection: Automatically disconnects power to prevent damage from voltage fluctuations.
- Residual Current (Leakage) Protection: Detects and protects against electrical leakage, enhancing safety.
- Over/Lost Current Protection: Safeguards against excessive current draw and power loss.
- PV Metering: Specifically designed to monitor and manage power in photovoltaic (solar) installations.
- Memory Function: Retains kWh, over voltage, under voltage, and over current values even after power interruptions.
3. Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 230V AC |
| Frequency | 50Hz/60Hz |
| Under Voltage Protection | 150V-190V (Adjustable, Default: 170V) |
| Over Voltage Protection | 250V-300V (Adjustable, Default: 270V) |
| Over Current Protection | 1A-63A (Adjustable, Default: 63A) |
| Reconnect Time (Delay On) | 5s-90s (Default: 30s) |
| Electric Leakage Protection | 10-99mA |
| Power Display Range | 0-99999.9 kWh |
| Functions | Voltage Meter, Ammeter, Energy Meter, Timer |
| Material | ABS |
| Color | White |
| Dimensions (W x H x D) | 36mm x 85mm x 51mm (Side depth: 65mm) |
4. Package Contents
- 1 x WTDZW-63A/N Smart PV Circuit Breaker
5. Safety Information
WARNING: Electrical installation should only be performed by qualified personnel. Ensure power is disconnected before installation or maintenance.
Important Note on Leakage Protection: If the protector trips three times consecutively due to leakage protection, the device will no longer automatically reconnect. This safety feature requires manual intervention. The user must check for the cause of the power failure and fix it to ensure personal safety before manually resetting the device. This prevents repeated exposure to potentially hazardous leakage conditions.
6. Setup and Installation
6.1 Physical Installation
- Power Disconnection: Before starting any installation, ensure that the main power supply to the circuit is completely disconnected at the main breaker or fuse box.
- Mounting: The WTDZW-63A/N is designed for DIN rail mounting. Securely attach the device to a standard 35mm DIN rail within your electrical panel.
- Wiring: Refer to the wiring diagram below for correct connections. Connect the incoming live (L) and neutral (N) wires to the 'IN' terminals and the outgoing load wires to the 'OUT' terminals. For PV metering, ensure the PV panel and inverter connections are made as shown.
- Secure Connections: Ensure all wire connections are tight and secure to prevent loose contacts and overheating.
- Restore Power: Once installation is complete and verified, restore power to the circuit.
6.2 Wiring Diagram
6.3 App Pairing (Tuya Smart Life)
- Download App: Download the 'Tuya Smart' or 'Smart Life' app from your mobile device's app store.
- Register/Login: Create an account or log in to your existing account.
- Add Device: Power on the circuit breaker. The Wi-Fi indicator on the device should be blinking rapidly. If not, press and hold the 'set up' button until it blinks. In the app, tap '+' to add a device, then select 'Electrical Engineering' > 'Circuit Breaker (Wi-Fi)'.
- Connect to Wi-Fi: Follow the in-app instructions to connect the device to your 2.4GHz Wi-Fi network.
- Device Renaming: Once connected, you can rename the device for easy identification.
6.4 Setting Protection Parameters
The device allows adjustment of protection thresholds directly on the unit or via the app:
- Under Voltage Protection: Adjustable from 150V-190V (Default: 170V).
- Over Voltage Protection: Adjustable from 250V-300V (Default: 270V).
- Over Current Protection: Adjustable from 1A-63A (Default: 63A).
- Reconnect Time (Delay On): Adjustable from 5s-90s (Default: 30s).
- Electric Leakage Protection: Adjustable from 10-99mA.
Use the 'set up', 'raise', and 'down' buttons on the device to navigate and adjust settings, or use the dedicated settings section within the Smart Life app.
7. Operation
7.1 Manual Control
The device features 'ON' and 'OFF' buttons for manual control of the circuit. Press 'ON' to close the circuit and 'OFF' to open it.
7.2 Remote Control via App
Once paired with the Tuya Smart Life app, you can remotely monitor and control the circuit breaker:
- Switch On/Off: Toggle the circuit breaker's status from your phone.
- Monitor Data: View real-time voltage, current, and accumulated kWh readings.
- Adjust Settings: Modify protection parameters and schedules.
- View Operation Records: Access historical data and event logs.
7.3 Voice Control
Integrate the Tuya Smart Life app with compatible voice assistants (e.g., Amazon Alexa, Google Assistant) to control the circuit breaker using voice commands. For example, "OK Google, turn on the [Device Name]" or "Alexa, turn off the [Device Name]".
7.4 Electricity Metering
The device's display shows real-time voltage (V), current (mA), and accumulated energy (kWh). The app provides a more detailed overview and historical data.
8. Maintenance
- Regular Inspection: Periodically check the device for any signs of physical damage, loose connections, or discoloration.
- Cleaning: Use a dry, soft cloth to clean the exterior of the device. Do not use liquid cleaners or solvents.
- Firmware Updates: Ensure your device's firmware is up to date through the Tuya Smart Life app for optimal performance and security.
9. Troubleshooting
- Device Not Powering On: Check the main power supply and ensure all wiring connections are secure according to the diagram.
- Wi-Fi Connectivity Issues: Ensure your Wi-Fi network is 2.4GHz. Check router distance and signal strength. Try resetting the device's Wi-Fi by holding the 'set up' button until the indicator blinks rapidly, then re-pair with the app.
- Frequent Tripping (Leakage Protection): As noted in the safety section, if the device trips three times due to leakage, it will not auto-reconnect. This indicates a persistent electrical leakage issue. Immediately disconnect power and have a qualified electrician inspect your wiring and connected appliances to identify and fix the fault before manually resetting the breaker.
- Frequent Tripping (Over Voltage/Current): Check the connected load and ensure it does not exceed the device's rated current (63A) or your set over-current protection limit. Verify the incoming voltage is within the acceptable range (230V nominal). Adjust protection thresholds if necessary, but always within safe operating limits.
- Incorrect Readings: Ensure the device is correctly wired. If readings appear inaccurate, contact support.
10. User Tips
- Voltage Compatibility: This device is rated for 230V AC. It is not designed for 12V DC applications, such as those found in recreational vehicles or off-grid DC systems. Always verify voltage compatibility before installation.
- Protection Scope: The circuit breaker primarily protects the electrical grid and connected loads from over/under voltage, over current, and leakage. While it monitors the circuit where an inverter might be connected, its direct protection is for the circuit itself, not necessarily the internal components of the inverter.
- Smart Home Integration: Leverage the scheduling features in the Tuya Smart Life app to automate power management, such as turning off non-essential circuits during off-peak hours or when away from home.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's contact information or the official Tuya Smart Life support channels. Keep your purchase receipt for warranty claims.
