DewinLVD Smart Reclosing Leakage Protection Circuit Breaker

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of the DewinLVD Smart Reclosing Leakage Protection Circuit Breaker. This device is designed to protect electrical circuits and appliances from various faults, including overvoltage, undervoltage, overcurrent, and leakage, with the added convenience of remote control via the Tuya App.

Please read this manual thoroughly before installation and use to ensure safe and efficient operation of the product.

Figure 1.1: The DewinLVD Smart Circuit Breaker is widely used in power metering systems, schools, shopping malls, rental houses, home appliances, industries, laboratories, and other places.

2. Safety Information

WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel.

• Always disconnect power before installing or servicing the device.
• Ensure all wiring connections are secure and comply with local electrical codes.
• Do not operate the device if it appears damaged.
• This device is designed for indoor use in dry environments. Avoid exposure to moisture or extreme temperatures.
• The device must be properly grounded.

3. Package Contents

• 1 x DewinLVD Smart Reclosing Circuit Breaker
• 1 x User Manual (English)

4. Product Overview

The DewinLVD Smart Reclosing Leakage Protection Circuit Breaker integrates multiple protection functions with smart control capabilities. Key components are identified below.

Figure 4.1: Labeled diagram of the DewinLVD Smart Circuit Breaker. This image highlights the Test button, Automatic switch button, Working mode selection, Indicator light (Fault status: red flashing, Network status: blue flashing), Indicator window, Operating handle, Wiring diagram, and Outlet terminal. It also shows connections for live wire and neutral wire.

Figure 4.2: Overview of the reclosing leakage protector's features, including DIN rail installation, indicator light design, remote operation control, timed control, and emergency alarm for faults.

Figure 4.3: A detailed view of the DewinLVD Smart Circuit Breaker, showcasing its overall design and connection points.

• Test Button: Used to manually test the leakage protection function.
• Automatic Switch Button: Toggles between automatic and overhaul modes.
• Indicator Window: Displays the operational status.
• Operating Handle: Manually switches the circuit breaker ON/OFF.
• Indicator Light: Indicates fault status (red flashing) and network status (blue flashing).
• Wiring Terminals: Connects live and neutral wires.

5. Setup and Installation

The DewinLVD Smart Circuit Breaker is designed for DIN rail installation. Follow these steps for proper setup:

1. Mounting: Securely mount the circuit breaker onto a standard DIN rail in your electrical distribution box.
2. Wiring:
   • Connect the incoming live wire to the terminal labeled "Connect live wire" (typically the top left terminal).
   • Connect the incoming neutral wire to the terminal labeled "Connect neutral wire" (typically the top right terminal).
   • Connect the outgoing live wire to the bottom left terminal.
   • Connect the outgoing neutral wire to the bottom right terminal.
   • Ensure all connections are tight with a torque of 2.5 Nm. Refer to the wiring diagram on the device for precise connections.
3. Power On: After all connections are made and checked, restore power to the circuit.
4. Initial Test: Press the "Test" button to verify the leakage protection function. The circuit breaker should trip. Reset it by moving the operating handle to the ON position.

Figure 5.1: The DewinLVD Smart Circuit Breaker, showing its design for DIN rail installation and general appearance.

6. Operating Instructions

The circuit breaker offers both manual and smart control options.

6.1 Manual Operation

• To turn the power ON, push the operating handle upwards.
• To turn the power OFF, pull the operating handle downwards.
• In case of a fault, the circuit breaker will trip automatically, and the operating handle will move to the OFF position.

6.2 Automatic and Overhaul Modes

The device features an automatic switch button to select the operating mode:

• Automatic Mode: When the button is in "Auto" mode, the circuit breaker's ON/OFF status can be controlled remotely via the Tuya App. This mode allows for automatic reclosing after certain fault conditions are cleared.
• Overhaul Mode: When the button is in "Overhaul" mode, remote control via the Tuya App is disabled. The circuit breaker can only be operated manually using the operating handle. This mode is intended for maintenance or situations where remote control is not desired.

6.3 Tuya App Remote Control

To utilize the smart features, download and configure the "Tuya" or "Smart Life" application on your mobile device.

1. Download App: Search for "Tuya Smart" or "Smart Life" in your mobile app store (iOS or Android) and install it.
2. Register/Login: Create an account or log in to your existing account.
3. Add Device: Follow the in-app instructions to add a new device. Ensure your circuit breaker is in Automatic Mode and its indicator light is flashing blue (network status).
4. Remote Control: Once connected, you can remotely control the circuit breaker's ON/OFF function, monitor voltage, current, power consumption, and internal temperature from anywhere with an internet connection.

Figure 6.1: Tuya App interface displaying controls and real-time data for the circuit breaker, including main switch, residual current, total power consumption, temperature, today's power consumption, voltage, and current.

Note on App Control:

• When the circuit breaker is in Auto mode, its closing and opening can be controlled by the APP.
• When the circuit breaker is in Overhaul mode, the closing or opening command controlled by the APP will be invalid, and the circuit breaker switch can only be opened and closed manually.
• Remote operation control through "TUYA" "Smart Life" APP enables global shutdown/on functionality.

7. Maintenance

Regular maintenance ensures the longevity and reliable operation of your circuit breaker.

• Cleaning: Periodically clean the exterior of the device with a dry, soft cloth. Do not use liquid cleaners or solvents.
• Connection Check: Annually, or as needed, verify that all wiring connections are secure and free from corrosion. Ensure power is disconnected before checking connections.
• Function Test: Regularly perform a manual test of the leakage protection by pressing the "Test" button. The device should trip. If it does not, the device may be faulty and requires inspection by a qualified electrician.
• Firmware Updates: Check the Tuya App periodically for any available firmware updates for the device to ensure optimal performance and security.

8. Troubleshooting

If you encounter issues with your DewinLVD Smart Circuit Breaker, refer to the following common problems and solutions:

9. Specifications

Detailed technical specifications for the DewinLVD Smart Reclosing Leakage Protection Circuit Breaker.

Figure 9.1: Product dimensions and a summary of key technical specifications.

10. Warranty Information

Warranty information for this product is not explicitly provided in the available product details. Please refer to your purchase documentation or contact the seller for specific warranty terms and conditions.

11. Customer Support

Customer support contact information is not explicitly provided in the available product details. For assistance, please contact the seller or refer to the support channels provided at the point of purchase.