1. Introduction
This manual provides detailed instructions for the installation, setup, operation, and maintenance of the DEWIN DEWD9L-W WiFi Remote Control Leakage Protection Automatic Switch. This device is designed to automatically restore power after an accidental trip of a Miniature Circuit Breaker (MCB) or Residual Current Circuit Breaker (RCCB) via a mobile application, enhancing electrical system efficiency and safety. It features intelligent WiFi control, allowing remote management of your electrical circuits.
Figure 1: DEWIN DEWD9L-W WiFi Remote Control Leakage Protection Automatic Switch
2. Safety Information
WARNING: Electrical installation and maintenance should only be performed by qualified personnel. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always disconnect power at the main circuit breaker 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.
- Verify correct voltage and current ratings before connection.
- The device is designed for indoor use in environments within the specified temperature range.
3. Product Overview
The DEWIN DEWD9L-W is an intelligent circuit breaker designed for leakage protection and remote control. It integrates WiFi connectivity for smartphone application management, allowing users to monitor and control their electrical circuits from anywhere with a signal.
3.1 Key Features
- Automatic Leakage Protection: Detects leakage currents and trips the circuit to prevent hazards.
- Remote Reclosing: Allows reclosing of the MCB/RCCB via a mobile application after an unexpected trip.
- Intelligent WiFi Control: Manage the device remotely using a smartphone application.
- Dual Operating Modes: Supports AUTO mode for app control and MANU mode for manual operation.
- Status Indicators: Equipped with LED indicators to display operational status and WiFi connectivity.
3.2 Panel Introduction
Figure 2: Front Panel Components of DEWIN DEWD9L-W
The front panel includes:
- Leakage Switch: Button for testing the leakage protection function.
- Status Indicator: LED lights indicating WiFi connection and device status.
- Product Number: DEWD9L-W identifier.
- Working Mode Selection: Slider switch to select between AUTO and MANU modes.
- Locking Device: Mechanism to secure the operating handle.
- Operating Handle: Manual switch for turning the circuit on or off.
4. Specifications
Figure 3: Device Dimensions and Key Specifications
| Parameter | Value |
|---|---|
| Product Name | WIFI Smart Leakage Protection Automatic Switch |
| Model | DEWD9L-W |
| Materials | Polycarbonate + Copper |
| Poles | 4P |
| Power Terminals | A1/A2 |
| Rated Voltage | AC 400V |
| Rated Current | 63A |
| Leakage Current | 30mA |
| Power Input (Standby) | ≤1 VA |
| Power Input (Operation) | ≤ 20 VA |
| Voltage Tolerance | -10%, +10% |
| Indicators | Bicolor LED (Red/Green) |
| Action Time | ≤ 1s |
| Closing Operation | Manual app reset after release |
| Mechanical Life | 10,000 cycles |
| Electrical Life | 4,000 cycles |
| Operating Environment Temperature | -20 °C to +55 °C |
| Installation Method | 35mm DIN rail mounting |
| Dimensions (Package) | 12.7 x 12.2 x 11.6 cm |
| Weight (Package) | 500 grams |
5. Installation
The DEWIN DEWD9L-W is designed for 35mm DIN rail mounting. Ensure the main power supply is disconnected before proceeding with installation.
5.1 Mounting
- Locate a suitable position on a 35mm DIN rail within your electrical panel.
- Attach the device securely to the DIN rail.
5.2 Wiring
Connect the power line and load line according to the diagram below. Ensure proper polarity and secure connections for all terminals.
Figure 4: Wiring Diagram
- Connect the incoming neutral (N) and live (L) wires to the corresponding terminals on the top of the device (Power line).
- Connect the outgoing neutral (N) and live (L) wires to the corresponding terminals on the bottom of the device (Load line).
- Ensure all connections are tight to prevent loose contacts and overheating.
6. Setup
After physical installation, proceed with the WiFi and application setup to enable intelligent control features.
6.1 Application Download
- Scan the QR code located on the device or refer to the included manual for the specific application download link. The application is typically compatible with common smart home platforms.
- Install the application on your smartphone.
6.2 WiFi Connection and Pairing
Figure 5: Intelligent WiFi Control via Smartphone App
- Ensure your smartphone is connected to a 2.4GHz WiFi network.
- Open the installed application and create an account or log in.
- Follow the in-app instructions to add a new device. This usually involves putting the DEWD9L-W into pairing mode (refer to the app or device instructions for specific steps, often involving a button press sequence).
- Once successfully paired, the green LED indicator on the device will remain steadily lit, confirming WiFi connectivity.
7. Operating Instructions
The DEWIN DEWD9L-W offers both manual and intelligent control options.
7.1 Working Modes
- AUTO Mode: In this mode, the device can be controlled remotely via the smartphone application. It also enables the remote reclosing function, where you can restore power via the app after a trip.
- MANU Mode: When the mode selection switch is set to MANU, remote commands from the application to close or open the switch are disabled. Only manual operation of the operating handle is permitted.
7.2 LED Indicators
- Green LED: Indicates successful WiFi connection and normal operation.
- Red LED: Illuminates if the automatic switch or leakage protection mechanism has tripped or is not functioning correctly.
7.3 Manual Operation
To manually turn the circuit on or off, use the operating handle on the front panel. Ensure the device is in MANU mode if you wish to override app control.
7.4 Remote Operation via App
In AUTO mode, use the smartphone application to:
- Turn the circuit on or off.
- View real-time status of the device.
- Initiate a reclosing operation after a trip. Note that the device does not automatically reclose without user intervention via the app after a trip.
8. Maintenance
Regular maintenance ensures the longevity and reliable operation of your DEWIN DEWD9L-W switch.
- Monthly Leakage Test: Press the 'Test Monthly' button on the device to verify the leakage protection function. The device should trip, and the red LED should illuminate. Reset the device via the app or manually after the test.
- Cleaning: Periodically clean the exterior of the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Connection Check: Annually, or as needed, verify that all wiring connections are secure and free from corrosion.
9. Troubleshooting
- Device does not power on:
- Check the main power supply.
- Verify all wiring connections are correct and secure.
- Device trips frequently:
- A frequent trip indicates a potential electrical fault or leakage in the circuit. Consult a qualified electrician to inspect your electrical system.
- Ensure the connected load does not exceed the device's rated current (63A).
- Cannot connect to WiFi / Green LED is off:
- Ensure your WiFi network is 2.4GHz.
- Check WiFi signal strength at the device's location.
- Restart your WiFi router.
- Attempt to re-pair the device with the application.
- Remote control via app is not working:
- Ensure the device is in AUTO mode.
- Verify your smartphone has an internet connection.
- Check if the green LED is lit, indicating a stable WiFi connection.
- Device does not reclose automatically after a trip:
- The DEWD9L-W requires manual reclosing via the mobile application after a trip. It does not automatically reclose without user intervention.
- Ensure you are in AUTO mode and use the app to initiate the reclosing command.
10. Package Contents
The product package includes the following items:
- 1 x DEWIN WiFi Smart Leakage Protection Automatic Switch (DEWD9L-W)
- 2 x Connection Cables
- 1 x User Manual
Figure 6: Package Contents
11. Warranty and Support
Information regarding product warranty and customer support is not available in the provided data. Please refer to the product packaging or contact your retailer for details on warranty coverage and technical assistance.