SONOFF 4CH R3 4-Gang Wi-Fi Smart Switch – DIN Rail 4-Channel Relay Controller, eWeLink App, Alexa & Google Assistant Compatible
Overview:
• The SONOFF 4CH R3 is a 4-Gang Wi-Fi Smart Switch designed to control four independent electrical circuits from one smart relay controller.
• It supports remote control through the eWeLink App, allowing users to turn each channel ON/OFF separately, set timers, create schedules, and build automation scenes.
• The device supports 3 working modes: Self-Locking Mode, Interlock Mode, and Inching Mode, making it suitable for lighting, appliances, gate control, pumps, and automation projects.
• The DIN Rail Mounting Design makes it suitable for installation inside electrical panels and control boxes.
• The 4CH R3 supports 2.4GHz Wi-Fi control and voice control through Amazon Alexa & Google Assistant. The RF function is available on 4CH Pro R3, not the standard 4CH R3.
Key Features:
• 4-Gang Wi-Fi Smart Switch for controlling 4 independent circuits.
• Remote Control via eWeLink App.
• Voice Control compatible with Amazon Alexa & Google Assistant.
• Self-Locking Mode for independent ON/OFF control.
• Interlock Mode for one-channel-at-a-time operation.
• Inching Mode for pulse / momentary control.
• Timer & Schedule Control for automatic ON/OFF operation.
• Smart Scene Control with compatible SONOFF devices.
• Manual Control Buttons for local channel operation.
• Real-Time Device Status Sync on the mobile app.
• 2.4GHz Wi-Fi IEEE 802.11 b/g/n connectivity.
• DIN Rail Installation for electrical panels.
• Important Note: 4CH R3 does not support 433MHz RF control; RF control is supported by 4CH Pro R3.
Technical Specifications:
• Model Name: SONOFF 4CH R3 / 4CHR3.
• Brand: SONOFF.
• Product Type: 4-Gang Wi-Fi Smart Switch / Relay Controller.
• Series: 4CH Series.
• Channels: 4 Channels / 4-Gang.
• Working Modes: Self-Locking / Interlock / Inching.
• Wireless Connectivity: Wi-Fi IEEE 802.11 b/g/n 2.4GHz.
• Control App: eWeLink App.
• Voice Assistant Support: Amazon Alexa & Google Assistant.
• Input Voltage: 100–240V AC, 50/60Hz.
• Max Load: 10A per Gang.
• Max Power: 2200W per Gang.
• Total Load: 16A / 3500W Total Max.
• Material: PC V0 Flame-Retardant Material.
• Color: White.
• Dimensions: 145 × 90 × 40 mm.
• Installation Type: DIN Rail / Electrical Panel Installation.
• Application: Indoor Electrical Control & Automation.
Applications:
• Smart lighting control.
• Multi-zone appliance control.
• Electrical panel automation.
• Gate and access control pulse operation.
• Pump and motor control through proper contactor/interface.
• Villas and apartments.
• Offices and commercial spaces.
• Retail shops and showrooms.
• Automation control panels.
• eWeLink smart home systems.
Connect Gates Recommendation:
• Recommended by Connect Gates for automation projects that require 4 independent relay channels, flexible operation modes such as Self-Locking, Interlock, and Inching, and reliable smart control through eWeLink App, Alexa, and Google Assistant.