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Please install and maintain the device by a professional electrician. electric shock hazard, do not operate any connection or contact the terminal connector while the device is powered on!
Light fixture wiring instruction:
Socket wiring instruction (Don't need to connect if no ground wire):
Make sure all wires are connected correctly.
To ensure the safety of your electrical installation, it's essential either a Miniature Circuit Breaker (MCB) or a Residual Current Operated Circuit Breaker (RCBO) with an electrical rating of 4CHR3(16A), 4CHR3PRO(40A) has been installed before the 4CHR3, 4CH R3PRO.
35mm rail installation
After powering on, the device will enter the quick pairing mode during the first use. The Wi-Fi LED indicator changes in a cycle of two short and one long flash and release.
The device will exit the quick pairing mode if not paired within 3mins. If you want to enter this mode, please long press any pairing button for about 5s until the Wi-Fi LED indicator changes in a cycle of two short and one long flash and release.
Tap "+" and select "Add Device", then operate following the prompt on the App.
If you fail to enter Quick Pairing Mode, please try "Compatible Mode " to pair.
Model | 4CHR3, 4CHPROR3 |
Input | 4CHR3: 100-240V ~ 50/60Hz 4CHPROR3: 100-240V ~ 50/60HZ( DC: 9-23V ![]() |
Max. Load | 4CHR3: 10A/Gang 16A Total 4CHPROR3: 10A/Gang 40A Total |
RF | 433.92MHz (Receive only) |
Wi-Fi | IEEE 802.11 b/g/n 2.4GHZ |
Operating systems | Android & iOS |
Working temperature | -10ºC~40ºC |
Material | PC V0 |
Dimension | 145x90x34mm |
4CHR3 does not support the remote controller with 433.92MHz.
The device weight is less than 1 kg.
The installation height of less than 2 m is recommended.
Wi-Fi LED indicator status | Status instruction |
Flashes (one long and two short) | Quick Pairing Mode |
Keeps on | Device is connected successfully |
Flashes quickly | Compatible Pairing Mode |
Flashes quickly once | Unable to discover the router |
Flashes quickly twice | Connect to the router but fail to connect to Wi-Fi |
Flashes quickly three times | Upgrading |
This device is a 4-Gang Wi-Fi smart switch with self-locking, interlock and inching that allow you to remotely turn on/off connected devices via your smartphone, schedule on or Off, share to your family to control together.
The 4CHPROR3 supports the remote controller with 433.92MHz frequency brand to turn on/off, and each channel can learn it independently, which is local short-range wireless control not Wi-Fi control.
Pairing Method:
Long press the channel switch button to be paired for 3s until the Wi-Fi LED indicator turns red and "quickly flashes once" and release, then short press the button to be paired on the remote control. If the Wi-Fi LED indicator turns red and "quickly flashes once", it indicates that the pairing is successful.
Clearing Method:
Long press the channel switch button to be cleared for 5s until the Wi-Fi LED indicator turns red and "quickly flashes twice" and release, then short press the button to be cleared on the remote control. If the Wi-Fi LED indicator turns red and "quickly flashes once", it indicates that the code is cleared.
If you need to change the press the any pairing button for about 5s until the Wi-Fi LED indicator changes in a cycle of two short and one long flash and release, , then the device enters quick pairing mode and you can pair again.
Deleting the device on the eWeLink app indicates you restore it to factory setting.
Q: Why my device stays "Offline"?
A: The newly added device needs 1 - 2mins to connect Wi-Fi and network. If it stays offline for a long time, please judge these problems by the blue Wi-Fi indicator status:
Service email: support@itead.cc
Website: sonoff.tech
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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