Shelly 4-Channel Decoupler 230V
£9.29
The Shelly 4-Channel Decoupler 230V lets existing 230V wall switches trigger up to four low-voltage DC inputs on compatible Shelly devices, using optocouplers to electrically isolate the AC and DC sides. It's designed for retrofitting traditional switches onto devices like the Plus RGBW PM, Pro RGBWW PM, Plus Uni and Plus Add-On.
- Four independent AC-to-DC input channels
- Optocoupler isolation keeps AC and DC circuits separate
- Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
- Works with buttons, relays, sensors and specialist controllers
Buy the Shelly 4-Channel Decoupler 230V online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
The Shelly 4-Channel Decoupler 230V provides a simple and safe way to use standard AC switches, sensors, and control devices to trigger up to four low-voltage DC inputs simultaneously. By electrically isolating the AC and DC circuits using optocouplers, it allows existing 230V switches and control signals to operate compatible Shelly devices without exposing their low-voltage inputs to mains voltage. This makes it an ideal solution for retrofits, specialist control systems, and installations where multiple AC and DC circuits need to work together safely.
Designed for use with devices such as the Shelly Plus RGBW PM, Shelly Pro RGBWW PM, Shelly Plus Uni, and Shelly Plus Add-On, the decoupler enables traditional switches, push buttons, relays, and sensors to trigger multiple smart functions and automations. Whether controlling several lighting zones, integrating third-party sensors, or reusing existing wall switches, it provides reliable signal conversion while protecting connected devices.
- Four independent AC-to-DC input channels
- Electrically isolates AC and DC circuits for safe operation
- Compatible with selected Shelly devices and add-ons
- Ideal for retrofitting existing switches and controls
- Supports buttons, relays, sensors, and specialist controllers
- Compact design for easy installation
The Shelly 4-Channel Decoupler is particularly useful when connecting multiple wall switches to smart LED controllers, integrating several AC-powered sensors, or adding traditional control methods to advanced automation systems. It provides a clean, reliable bridge between mains-powered controls and low-voltage smart devices.
Four independent AC-to-DC input channels
Optocoupler isolation keeps AC and DC circuits separate
Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
Works with buttons, relays, sensors and specialist controllers
Where you'd use it
Reusing Existing Wall Switches
Wire an existing 230V rocker switch into the decoupler so it can trigger a Shelly Plus RGBW PM's low-voltage input, keeping the original switch working after a smart retrofit.
Multi-Zone Push Button Control
Use all four channels to bring four separate wall-mounted push buttons into one Plus Uni, each triggering a different lighting zone or scene.
Safe AC Sensor Integration
Connect a 230V-powered PIR or door sensor through the decoupler so its signal can trigger a compatible Shelly add-on without exposing the low-voltage input to mains.
Specification
Physical & Build
- Cable length
- 80 mm
- Stripped length
- 5 mm
- HxWxD
- 44 x 34 x 7 mm / 1.73 x 1.34 x 0.27 inch
Environmental
- Humidity
- 30 % to 70 % RH
Power & Electrical
- Power consumption < 0.6W
Other
- Input
- 230V~ 50 Hz
- Max. output current
- 2.4 mA⎓
- Ambient working temperature
- 0 to 40 °C / 32 to 104°F
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