SONOFF 4CH R3 WiFi smart switch
Shop the Itead SONOFF 4CH R3 / 4CH PRO R3 Wifi Switch Module. This 4-gang DIY smart switch features app and voice control that works with Alexa.
SONOFF 4CH PRO R3 4-Gang Wi-Fi Smart Switch Module
Automate your home with the SONOFF 4CH PRO R3 Wi-Fi Smart Switch. This powerful 4-gang module allows you to independently control up to four electrical devices from your smartphone or via voice commands with Alexa and Google Home. Featuring advanced Inching, Interlock, and Self-Locking modes, it is the ultimate DIY solution for custom smart home scheduling and seamless automation.
- Control: 4-Gang independent switch control via Wi-Fi & app
- Power Capacity: Max 10A/2200W per gang (40A/8800W Total)
- Smart Home: Works seamlessly with Alexa, Google Home, and IFTTT
- App Integration: Remote control and timers via eWeLink (iOS/Android)
Key Features
- 4-Gang Independent Control: Connect and control up to four distinct electrical appliances or light circuits independently from a single module using your smartphone.
- Three Operating Modes: Easily switch between Self-locking (turn devices on/off independently), Interlock (turn on one device while turning off others), and Inching (turn on then auto-off after a set time) modes.
- Voice & App Remote Control: Seamlessly integrates with Amazon Alexa and Google Assistant for hands-free voice control, while the eWeLink app provides global remote access from anywhere.
- Smart Scheduling & Timers: Set countdown, single, or repeating timers to automatically turn devices on or off at specified times, reducing energy waste and automating your daily routines.
- Broad Voltage & Power: Supports a versatile voltage range of 100-240V AC (and DC 9-23V) with a highly robust maximum load capacity of 40A/8800W total across all channels.
Compatibility & Best Use
- Smart Home Ecosystems: Fully compatible with the eWeLink app, Amazon Alexa, Google Home, and IFTTT to create complex, conditional smart home routines.
- Versatile Home Automation: Ideal for independently controlling ceiling lights, outdoor landscape lighting, exhaust fans, or complex multi-switch setups.
- Motorized Applications: The Interlock and Inching modes make this switch perfectly suited for controlling motorized roller blinds, curtains, and garage doors safely.
Installation Tips
- Electrical Safety: Always turn off the main power supply at the circuit breaker before attempting to wire or install the smart switch module to prevent electric shock.
- Mode Configuration: Set your desired operating mode (Self-locking, Interlock, or Inching) using the physical hardware dip switches on the board before securing the enclosure.
- Network Pairing: Ensure your smartphone is connected to a 2.4GHz Wi-Fi network (5GHz is not supported) during the initial eWeLink app pairing process.
- DIN Rail Mounting: The module casing is designed to snap effortlessly onto standard DIN rails, making it easy and clean to install inside professional electrical breaker boxes.
Product Specifications
| Brand Name | SONOFF |
|---|---|
| Model Number | 4CH PRO R3 |
| Product Type | 4-Gang Wi-Fi Smart Switch Module |
| Voltage Range | 100-240V AC 50/60Hz (DC: 9-23V) |
| Maximum Load | 10A/2200W per Gang | 40A/8800W Total |
| Wireless Frequency | Wi-Fi 2.4GHz |
| Working Modes | Inching, Interlock, Self-locking |
| Supported Ecosystems | eWeLink, Amazon Alexa, Google Home, IFTTT |
| Material & Dimensions | PC V0 (Fire-retardant) | 145mm x 90mm x 34mm |
| Certifications | CE, FCC |
Packing List
- 1 x SONOFF 4CH PRO R3 Wi-Fi Smart Switch Module
- 1 x Screwdriver / Installation Accessory
- 1 x User Manual & Wiring Guide
- Note: 433MHz RF Remote controls are only included if explicitly selected in your bundle option at checkout.
Warnings & Safety Notes
- High Voltage Hazard: This device operates on main line voltage. Installation must be performed by a qualified electrician in strict accordance with local electrical codes.
- Network Requirement: The module requires a stable 2.4GHz Wi-Fi connection to function. It will not pair with or operate on 5GHz Wi-Fi networks.
- Load Limits: Do not exceed the maximum load of 10A (2200W) per individual gang or 40A (8800W) total to prevent severe overheating and fire hazards.
- Indoor Use Only: Designed primarily for indoor use. If installing outdoors, the module must be housed inside a certified weatherproof, watertight enclosure.
