The Shelly Button Add-on is a practical accessory from Shelly that allows Shelly Plus, Gen3, and Gen4 modules to be equipped with a physical push button. This is especially useful in situations where, alongside smart control, traditional local switching is also required, such as manually controlling a floor lamp or fan.
The design is specifically optimized for retrofit installations, making it easy to upgrade existing devices - such as lamps or fans - without requiring full device replacement. The pre-wired, color-coded cables ensure quick and error-free connection to Shelly relays and the controlled devices.
The surface-mount housing enables installation without recessed wall mounting, making it an ideal solution for older devices, renovation projects, or locations where flush mounting is not possible or not required due to the characteristics of the controlled device. Thanks to its wide compatibility, it can be used with various Shelly relays and dimmers, providing flexibility for different smart home applications.
Important: A Shelly relay or dimmer is required for operation – not suitable for standalone use. Compatible with a wide range of Shelly Plus / Gen3 / Gen4 devices, as well as Gen3 and Gen4 Mini relays and dimmers.
About the Shelly brand
Shelly is one of the most well-known and innovative smart home brands in Europe, developed by the Bulgarian company Allterco Robotics. The brand is particularly strong in the market of Wi-Fi and Bluetooth-based smart devices, many of which operate without the need for a central hub, requiring only a working Wi-Fi network for quick and easy installation.
Shelly’s product portfolio is extensive, including relays, sensors, smart plugs, lighting solutions, and professional DIN rail-mounted devices. The company places strong emphasis on local control, allowing devices to function even without internet access, improving both reliability and data security.
Shelly devices offer advanced integration options, with native support for REST API, MQTT, and Webhook communication, making them easy to integrate with platforms such as Home Assistant, openHAB, Node-RED, and other DIY systems. They are also compatible with popular cloud platforms including Google Home, Amazon Alexa, and Samsung SmartThings.
The manufacturer continuously develops its products, and the latest generations also include BLE gateway, Wi-Fi range extender, and other networking features. Shelly products are especially popular among advanced users and professional installers, while their ease of use also makes them an excellent choice for beginners.
Key product features
Physical control: Push-button operation for Shelly modules
Compatibility: Works with Shelly Plus, Gen3, and Gen4 devices
Easy installation: Color-coded wiring
Elegant design: Compact housing with integrated button
Technical specifications
Product name: Shelly Button Add-on
Compatibility: Shelly Plus, Gen3, and Gen4 relays and dimmers
Design: Surface-mounted push-button control module
Size: 63 × 84 × 28 mm
Weight: 45.62 g
Installation: Surface-mounted / standalone design
Connectors: Push-in quick connectors
Wire cross-section: 0.2 – 1.5 mm² (24–16 AWG)
Stripping length: 7–8 mm
Cable diameter: 3 mm
Cable length: 35 mm
Cable colors: Brown, blue, black, white
Housing color: White
Connector color: Black
Power supply: 220–240V AC, 50 Hz
Max. switching voltage: 240V AC
Max. switching current: 3A, or up to the rated value of the connected Shelly device
Operating temperature: -20°C – +40°C
Humidity: 30–70% RH
Max. installation altitude: 2000 m
