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Shelly1 - Relay Switch 12VDC / 230VAC WiFi 16A


Complete module for controlling one 230V AC or 12V DC domestic device with power up to 3.5 kW via Wi-Fi network using a dedicated smartphone app from anywhere in the world. In order to use Shelly1 you just need to set up the device via a web browser. Compact size enables you to place the unit in a junction box.


Complete module for controlling one 230V AC or 12V DC domestic device with power up to 3.5 kW via Wi-Fi network using a dedicated smartphone app from anywhere in the world. In order to use Shelly1 you just need to set up the device via a web browser. The device has screw terminal block connectors for connecting wires. Compact size enables you to place the unit in a junction box.

Shelly1 - Relay Switch 16A

The device has screw terminal block connectors for connecting wires, its compact size allows you to place the module in a junction box.

Wiring diagram

Before connecting, switch off the voltage in the powered circuir. A driver must be installed in a place protected from the weather conditions and from access by third parties.

Shelly1 - Relay Switch 16A

Wiring diagram

The module has six inputs in the form of screw terminal block connectors, which can connect the wires with a screwdriver:

  • N – power, the neutral wire – ground.
  • L – power supply: 230V AC (12V, 24V to 60V DC) – positive pole.
  • O, I – input and output with a zero potential
  • SW – entrance of the relay controlling the O output
  • Debug Port
  • Jumpers for setting up voltage

Setting up

You need to connect to a wireless network device called “shellyswitch-xxxxxx” where “xxxxxx” is the serial number of the device, then use the Android Play or the AppStore and download the Shelly application. For initial setup of the device, you must click the default name of the device.

Shelly2 - Double Relay Switch

You can also set up the device via the website, for this you need to connect to a wireless network of the device, then just launch the Internet browser and enter the IP address of the device: Setup page will appear where you must select your home Wi-Fi network and enter the password.


  • Power supply:
    • from 110 V to 240 V AC
    • 12 V DC
    • 24 V to 60 V DC
  • Energy consumption: less than 1W
  • Number of outputs: 1
  • The type of control output: relay
  • Load current: up to 16A
  • Load capacity: up to 3500 In
  • Open API
  • Connector for software updates
  • Number of inputs: 1
  • Connection standard: wi-fi 802.11 b/g/n
  • Compatible devices: iPhone, iPad, iPad Mini, Android, computers and mobile devices with HTML5 support
  • Module dimensions: 41 x 36 x 17 mm

Shelly1 - Relay Switch 12VDC / 230VAC WiFi 16A