1. Introducció
The SONOFF DUALR3 Lite is an embedded Wi-Fi intelligent dual relay switch module designed to transform any standard switch into a smart switch. It enables wireless control of lighting, household appliances, and electric facilities such as rolling shutters, blinds, and awnings, via mobile devices or voice commands. This module integrates your home devices into a seamless wireless network, enhancing convenience and automation.

2. Informació de seguretat
Llegiu atentament aquesta secció abans de la instal·lació i l'ús per garantir un funcionament segur i evitar danys.
- Protection against Electric Shock: The DUALR3 Lite has passed additional tests at 35°C with an IEC 61032 test probe, ensuring no deformation or exposed live parts.
- Resistència mecànica adequada: The switch and its casing have undergone 9 blow impact tests, showing no damage or exposed live parts.
- Material aïllant: The device resists abnormal heat and fire. The PCB, base, and cover are made of insulating material that passed the IEC 60695-2-1 glow wire test at 850°C, with flame extinguishing within 2.8 seconds.
- Resistència a la calor, la humitat i l'envelliment: DUALR3 Lite has been subjected to severe environmental tests, including 1 hour in a 100°C heating cabinet, to ensure reliability and durability without affecting functionality or exposing live parts.
- Certificació: The device is CE certified.
- High-Concerned Chemicals: Cap.

WARNING: Installation should only be performed by a qualified electrician. Ensure power is disconnected before installation.
3. Producte acabatview
The SONOFF DUALR3 Lite is a versatile smart switch module. Below is a diagram illustrating its components and indicators:

Components clau:
- Base de muntatge: Per a una instal·lació segura.
- Botó de sincronització: Used for initiating pairing mode and resetting.
- S1/S2 On/Off Indicators: Show the status of the two output channels.
- Wi-Fi Signal Indicator: Displays the Wi-Fi connection status.
- Input Terminals (N in, L in): For neutral and live power input.
- Output Terminals (L Out 1, L Out 2): For connecting to loads.
Característiques:
- Comandament a distància sense fil: Control devices via the eWeLink app or voice commands (Alexa, Google Home).
- Dual Relay: Independent control of two output loads.
- Mode de motor: Specifically designed for four-wire AC motors, such as tubular motors for curtains, roller blinds, and awnings.
- Scenario Automation: Create custom scenes to trigger Wi-Fi or ZigBee devices.
- Control bidireccional: Supports double two-way control for lights.
- Àmplia compatibilitat: Works with various existing switch types (Momentary, Rocker, ON/OFF, Dual Momentary, ON/OFF/ON).
- Flexibilitat d'instal·lació: Suitable for in-wall installation and features a detachable mounting base for DIN-Rail installation.
4. Especificacions
| Atribut | Especificació |
|---|---|
| Model | DUALR3 Lite |
| Wi-Fi | IEEE 802.11 b / g / n a 2.4 GHz |
| Entrada/sortida | 100-240V AC 50/60Hz |
| Càrrega resistiva | 2200W/10A/Gang, 3300W/15A/Total |
| Càrrega del motor | 10-240W/1A |
| Carril DIN | 35 mm |
| CasinMaterial de g | PC V0 |
| Dimensió | 54x49x24 mm |
| Temperatura de treball | -10°C~40°C |
| Font d'alimentació | Other (AC Powered) |
| Bateria inclosa | No |
| Comunicació sense fils | Sí (Wi-Fi) |
| Adaptador de safata d'entrada | No |
| Estat de l'Assemblea | A punt per anar |
| Càmera equipada | No |
| Origen | Xina continental |
DUALR3 vs DUALR3 Lite Feature Comparison:
The DUALR3 Lite version removes power metering and its related functions but retains the motor and switch modes, making it suitable for controlling roller motors without travel limit functions.

5. Guia d'instal·lació
The DUALR3 Lite is designed for in-wall installation behind existing switches or for DIN-Rail mounting. It is applicable to four-wire (GND, neutral, Forward, and Reverse) AC motors, such as tubular motors.
Opcions de muntatge:

- Instal·lació a la paret: The compact design allows the module to fit behind most standard wall switches.
- Instal·lació de carril DIN: Utilize the detachable mounting base to secure the module onto a 35mm DIN-Rail.
Wiring Diagram (AC Motor Demo):
IMPORTANT: Ensure the main power supply is turned OFF before performing any wiring. Incorrect wiring can cause damage to the device or electrical hazards.

The diagram above illustrates a typical wiring setup for an AC motor. Connect the Neutral (N in) and Live (L in) wires from your power supply to the corresponding input terminals on the DUALR3 Lite. Connect the motor's Forward and Reverse wires to L Out 1 and L Out 2 respectively. Ensure all connections are secure.
Compatible Switch Types:

The DUALR3 Lite is compatible with a variety of existing switch types for both lights/appliances and roller shutter/window shades control, including Momentary, Rocker, ON/OFF, Dual Momentary, and ON/OFF/ON switches.
6. Configuració i emparellament
Follow these steps to set up and pair your SONOFF DUALR3 Lite with the eWeLink app:
- Descarrega l'aplicació eWeLink: Scan the QR code on the product packaging or search for "eWeLink" in your mobile app store (Google Play for Android, App Store for iOS).
- Encès: After completing the wiring, turn on the main power supply to the DUALR3 Lite.
- Introduïu el mode de vinculació: Long press the pairing button on the DUALR3 Lite until the Wi-Fi indicator light blinks rapidly. This indicates the device is ready for pairing.
- Afegeix un dispositiu a l'aplicació: Open the eWeLink app, tap the "+" icon to add a new device. Follow the on-screen instructions to connect the DUALR3 Lite to your 2.4GHz Wi-Fi network.
- Configuració completa: Once connected, you can name your device and assign it to a room for easier management.
7. Instruccions de funcionament
The DUALR3 Lite offers flexible control options through the eWeLink app and voice assistants.
Modes de treball:
The DUALR3 Lite supports two primary working modes:
- Mode de canvi: Allows independent control of two connected output loads (e.g., two separate lights).
- Mode de motor: Designed for controlling four-wire AC tubular motors, enabling remote operation of roller shutters, blinds, or awnings.
Control de l'aplicació:

Once paired, use the eWeLink app to:
- Turn connected devices on/off remotely.
- Establir horaris i temporitzadors per a un funcionament automatitzat.
- Control motor direction (Forward/Reverse) and position (Open/Close) in Motor Mode.
- Create smart scenes to automate multiple devices simultaneously.
Control de veu:

The DUALR3 Lite is compatible with popular voice assistants like Amazon Alexa and Google Home. Link your eWeLink account to your preferred voice assistant app and use voice commands to control your connected devices.
Scenario Automation:

Create custom scenes within the eWeLink app. For example, a single press of a remote control button can trigger a "Movie Time" scene, adjusting lights and closing blinds simultaneously.
Doble control bidireccional:

The DUALR3 Lite supports double two-way control, allowing you to control lights from multiple switch locations, similar to traditional 3-way or 4-way switches, but with smart functionality.
Instal·lacions motoritzades automatitzades de bricolatge:

Leverage the Motor Mode to automate various motorized facilities in your home, including roller blinds, roller shutters, shutter doors, electric dining tables, window openers, and awnings.
8. Manteniment
To ensure the longevity and optimal performance of your SONOFF DUALR3 Lite, follow these maintenance guidelines:
- Mantenir sec: Avoid exposing the device to moisture or humidity.
- Netegeu suaument: Use a soft, dry cloth to clean the device. Do not use harsh chemicals or abrasive cleaners.
- Comproveu les connexions: Inspeccioneu periòdicament les connexions del cablejat per assegurar-vos que estiguin ben fixades i que no presentin corrosió.
- Actualitzacions de firmware: Keep the eWeLink app updated and apply any available firmware updates for the DUALR3 Lite to benefit from new features and security enhancements.
9. Solució De Problemes
If you encounter issues with your DUALR3 Lite, refer to the following common problems and solutions:
- El dispositiu no respon:
- Comproveu si el dispositiu té alimentació.
- Verify Wi-Fi connectivity (check the Wi-Fi signal indicator).
- Ensure your router is working correctly and the device is within range.
- Error de vinculació:
- Make sure the device is in pairing mode (rapidly blinking Wi-Fi indicator).
- Confirm your Wi-Fi network is 2.4GHz. 5GHz networks are not supported.
- Comproveu que la contrasenya de la Wi-Fi sigui correcta.
- Try moving the device closer to your Wi-Fi router.
- Incorrect Device Status in App:
- Refresh the eWeLink app.
- Comproveu la vostra connexió a Internet.
- Restart the DUALR3 Lite by cycling its power.
- Physical Switch Not Working:
- Ensure the physical switch is correctly wired to the S1/S2 terminals.
- Verify the switch type configuration in the eWeLink app matches your physical switch (Momentary, Rocker, etc.).
- Restablir el dispositiu: If issues persist, you may need to factory reset the device. Long press the pairing button for approximately 5 seconds until the Wi-Fi indicator blinks rapidly, then release and press again for another 5 seconds until the indicator blinks differently (refer to app instructions for specific reset patterns). This will clear all settings and require re-pairing.
10. Consells d'usuari
- Verifiqueu el cablejat: Always double-check your wiring against the provided diagrams before powering on the device. Incorrect wiring is a common cause of issues.
- Intensitat del senyal Wi-Fi: For optimal performance, ensure the DUALR3 Lite is installed in an area with good 2.4GHz Wi-Fi signal strength.
- Exploració d'aplicacions: Take time to explore all features within the eWeLink app, including scene creation, timers, and sharing control with family members.
11. Garantia i Suport
The SONOFF DUALR3 Lite is manufactured by Shenzhen Sophia Technology Co., Ltd.
- Garantia: Please refer to the specific warranty terms provided at the point of purchase or on the official SONOFF weblloc.
- Suport tècnic: For technical assistance, troubleshooting, or further inquiries, please visit the official SONOFF support weblloc o poseu-vos en contacte amb el seu servei d'atenció al client.





