# SONOFF 4CHR3

*SONOFF / 4CHR3*

> The 4CHR3 is a four-channel Wi-Fi relay for DIN rail mounting with RF remote control. It runs from the eWeLink app, takes Alexa and Google voice control, and reaches Matter platforms through an eWeLink CUBE OS bridge. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (a Matter bridge).

- Canonical page: https://smarthomecanon.com/devices/sonoff-4chr3
- Last checked: 2026-10-13

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [SONOFF](https://smarthomecanon.com/brands/sonoff) |
| Category | Relay module |
| Model numbers | 4CHR3 |
| Status | Current[^1] |
| Type | Multi-channel relay (DIN rail)[^1] |
| Radio | Wi-Fi 2.4 GHz[^1] |
| Rated load | 10 A / 2200 W per channel, 16 A / 3500 W total[^1] |
| Energy monitoring | unknown |

## Integration paths

**How the SONOFF 4CHR3 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | eWeLink CUBE OS Matter bridge[^1] | Yes[^1] | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | eWeLink app[^1] | unknown | unknown |

**Platform support for the SONOFF 4CHR3**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^1] |  |
| Matter via Bridge | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Matter via Bridge | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Matter via Bridge | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] |  |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |

## Related pages

- [SONOFF Wi-Fi switches and power meters](https://smarthomecanon.com/lines/sonoff-wifi-switches-and-meters) (line)
- [SONOFF](https://smarthomecanon.com/brands/sonoff) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)

## Sources

[^1]: SONOFF store: SONOFF 4CHR3 & 4CHPROR3 4-gang Wi-Fi Smart Switch with RF Control. https://sonoff.tech/products/sonoff-4chr3-4chpror3-4-gang-wi-fi-smart-switch-with-rf-control (manufacturer, checked 2026-10-13)