Shelly 1-Channel Decoupler 230V
£6.29
An optocoupler-based accessory that electrically isolates 230V AC switches and control signals from low-voltage DC inputs, letting existing mains-wired switches, buttons, relays and sensors trigger compatible Shelly devices safely. Designed for retrofits where existing AC wiring needs to control DC-input Shelly products such as the Plus RGBW PM or Plus Uni.
- Converts 230V AC control signals into safe DC trigger inputs
- Optocoupler isolation protects low-voltage inputs from mains voltage
- Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
- Also works with buttons, relays, sensors and specialist controllers
Buy the Shelly 1-Channel Decoupler 230V online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
The Shelly 1-Channel Decoupler 230V provides a simple and safe way to use standard AC switches, sensors, and control devices to trigger low-voltage DC inputs. By electrically isolating the AC and DC circuits using an optocoupler, 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 AC and DC systems 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 smart functions and automations. Whether controlling LED lighting, integrating third-party sensors, or reusing existing wall switches, it provides reliable signal conversion while protecting connected devices.
- Converts 230V AC control signals to safe DC trigger inputs
- Electrically isolates AC and DC circuits for protection
- 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 1-Channel Decoupler is particularly useful when integrating existing wall switches with smart LED controllers, connecting AC-powered sensors to low-voltage inputs, or adding traditional control methods to modern automation systems. It provides a clean, safe, and reliable bridge between mains-powered controls and low-voltage smart devices.
Converts 230V AC control signals into safe DC trigger inputs
Optocoupler isolation protects low-voltage inputs from mains voltage
Compatible with Plus RGBW PM, Pro RGBWW PM, Plus Uni, Plus Add-On
Also works with buttons, relays, sensors and specialist controllers
Where you'd use it
Keep existing switches on an LED retrofit
Wire an existing 230V wall switch through the decoupler to trigger a Shelly Plus RGBW PM controlling LED strip lighting, so the original switch keeps working after the smart upgrade.
Safe mains sensor into a low-voltage input
Connect a mains-powered sensor or alarm contact to a Shelly Plus Uni's input without exposing the low-voltage side to 230V, thanks to the optocoupler isolation.
Legacy control panel bridging
Bridge an older 230V push-button control panel into a Shelly Plus Add-On input in properties where rewiring to low voltage isn't practical.
Specification
Physical & Build
- Cable length
- 80 mm
- Stripped length
- 5 mm
- HxWxD
- 48 x 13 x 7 mm / 1.89 x 0.51 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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