Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Sonoff T2EU3C Smart Wall Switch. Please read this manual carefully before use to ensure proper functionality and safety.
Figure 1: Sonoff T2EU3C Smart Wall Switch
The Sonoff T2EU3C is a wireless smart light switch designed for modern smart homes. It offers multiple control methods including Wi-Fi, RF 433MHz remote, and voice control via Alexa and Google Home. This 3-channel switch allows independent control of three lights and features dimming capabilities from 1% to 100% for compatible lamps.
Safety Information
- Always disconnect power at the circuit breaker before installing or servicing the device.
- Installation should be performed by a qualified electrician.
- Ensure a neutral wire is present for proper operation.
- Do not exceed the maximum load ratings: 150W for dimmable LED lamps or 200W for incandescent lamps.
- This device operates on a 2.4 GHz Wi-Fi network. 5.0 GHz Wi-Fi is not supported.
Product Overview
Features:
- Remote Control via App and RF: Control your Sonoff device from anywhere using the eWeLink app (iOS/Android) or the 433MHz wireless remote control.
- Automatic Control Scheduling: Set timers or schedules in the eWeLink app to automatically turn lights on or off at specific times.
- Smart Scenes: Create smart scenes where one Sonoff device triggers another, or group multiple devices for one-tap control.
- Voice Control: Compatible with Amazon Alexa and Google Home for hands-free operation.
- Dimming Functionality: Adjust brightness from 1% to 100% via the app or voice control.
- Brightness Memory: The switch remembers the last brightness setting when powered off and restores it upon power-on.
Model Comparison:
Figure 2: Comparison of Sonoff T0, T1, T2, and T3 EU models.
This table illustrates the differences between various Sonoff EU smart switch models, highlighting features such as voltage range, maximum load per channel, material, RF control, app and local control, voice control, border, and color. The T2EU3C model supports RF control, app and local control, and voice control.
Specifications
| Specification | Value |
|---|---|
| Product Dimensions | 8.6 x 8.6 x 3.5 cm; 90 grams |
| Manufacturer | Sonoff |
| Item Model Number | T2EU3C |
| Operation Mode | ON-OFF |
| Current Rating | 10 Amps |
| Connection Type | Normally Open |
| Connector Type | Wireless |
| Brand | Sonoff |
| Switch Type | Toggle |
| Terminal | 86 Type |
| Material | Metal |
| Item Dimensions L x W x H | 8.6 x 8.6 x 3.5 cm |
| Circuit Type | Single Pole |
Setup
1. Wiring Diagram
Before proceeding, ensure the main power supply is turned off at the circuit breaker. A neutral wire is required for installation.
Figure 3: Wiring diagram for the Sonoff T2EU3C switch.
Connect the Neutral (N) wire to the 'N In' terminal. Connect the Live (L) wire to the 'L In' terminal. Connect the load wires for your lights to 'L1 Out', 'L2 Out', and 'L3 Out' respectively. Ensure all connections are secure.
2. Device Back Panel
Familiarize yourself with the back panel of the switch, which includes connection terminals and product information.
Figure 4: Rear view of the Sonoff T2EU3C switch.
The back panel shows the model number (T2EU3C), RF frequency (433.92MHz), input/output specifications, and Wi-Fi standard. This information is crucial for troubleshooting and compatibility checks.
3. App Download and Pairing
To utilize the smart features, download the eWeLink app and pair your device.
Figure 5: eWeLink App download information on product packaging.
Scan the QR code or visit app.coolkit.cc/dl.html to download the eWeLink app for iOS or Android. Follow the in-app instructions to add and pair your Sonoff T2EU3C switch to your Wi-Fi network. Ensure your Wi-Fi router is set to 2.4 GHz.
Operating Instructions
1. RF Control
The switch can be controlled using a compatible 433MHz RF remote control, providing an alternative control method when Wi-Fi is unavailable.
Figure 6: Using an RF remote control with the Sonoff T2EU3C switch.
Pair your RM433 remote control with the switch according to the remote's instructions. This allows for local control of your lights without needing a smartphone or internet connection.
2. Hands-free Voice Control
Integrate your Sonoff T2EU3C with Amazon Alexa or Google Home for convenient voice commands.
Figure 7: Voice control setup with Alexa and Google Home.
Once paired with the eWeLink app, enable the Sonoff skill/action in your Alexa or Google Home app. You can then use voice commands like "Alexa, turn on the living room light" to control your connected devices.
3. Timer & Schedule
Automate your lighting by setting up schedules and timers within the eWeLink app.
Figure 8: Examples of timer and schedule settings.
The eWeLink app allows you to create single-time, repeating, or countdown timers for each channel. For example, you can set lights to turn on at 6:30 AM and off at 11:00 PM daily.
4. Control Multiple Devices
The 3-channel design allows independent control of up to three connected lights.
Figure 9: Independent control of multiple lights.
Each of the three touch buttons on the switch corresponds to a separate output, enabling you to control different lights or light groups independently.
5. Smart Scene Creation
Enhance your smart home experience by creating custom smart scenes.
Figure 10: Example of a smart scene setup.
Smart scenes allow you to automate actions based on conditions or combine multiple actions into a single tap. For instance, a 'Goodnight' scene could turn off all lights with one command.
Maintenance
To ensure the longevity and optimal performance of your Sonoff T2EU3C Smart Wall Switch, follow these maintenance guidelines:
- Cleaning: Gently wipe the glass panel with a soft, dry cloth. Avoid using abrasive cleaners or solvents that may damage the surface.
- Firmware Updates: Periodically check the eWeLink app for available firmware updates. Keeping the firmware updated ensures the latest features and security patches.
- Environmental Conditions: Ensure the switch is installed in a dry environment, away from direct sunlight and extreme temperatures.
Troubleshooting
If you encounter issues with your Sonoff T2EU3C Smart Wall Switch, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device offline in app | No Wi-Fi connection, incorrect Wi-Fi password, 5GHz Wi-Fi network. | Check Wi-Fi router, ensure 2.4GHz network, re-enter password, or re-pair device. |
| Cannot pair device | Incorrect pairing mode, weak Wi-Fi signal, router firewall settings. | Ensure device is in pairing mode (refer to app instructions), move router closer, check router settings. |
| Lights flicker or don't dim | Incompatible dimmable bulbs, load exceeds capacity. | Ensure bulbs are specifically 'dimmable LED' or incandescent. Check total wattage does not exceed 150W (LED) or 200W (incandescent). |
| Voice control not working | Incorrect skill/action enabled, device not linked to voice assistant. | Verify Sonoff skill/action is enabled and linked in Alexa/Google Home app. Ensure device name is recognized. |
Warranty and Support
For warranty information and technical support, please visit the official Sonoff website or contact their customer service.
- Official Website: sonoff.tech
- Customer Service Email: support@itead.cc
Please retain your purchase receipt for warranty claims.
