Shelly 1 Gen4

Shelly 1 Gen4

Compact single-channel smart relay with a dry contact for switching lights, pumps or other loads from your phone or a home-automation system. Gen4 adds wider connectivity options over earlier models. Check the supply voltage and contact rating on the manufacturer's data sheet against your application before fitting.

Shelly 1 Gen4 at a glance

• Potential-free contacts: the relay output is a dry contact, rated 16 A at 240 V AC or 10 A at 30 V DC.
• Power supply: 110-240 V AC, 24-48 V DC or a stabilised 12 V DC supply.
• Wi-Fi connection: it works on your local Wi-Fi network on its own, with no hub required, or through Shelly Cloud for remote control.
• Bluetooth connection: Bluetooth 5 (LE) for setup, plus a gateway for Shelly BLU sensors.
• Zigbee connectivity: Zigbee 3.0, and it can act as a range extender for your Zigbee network and your Wi-Fi.
• Smart home: compatible with Matter, and works with Google, Alexa and Samsung SmartThings for voice assistants and automations.
• Control: the Shelly Smart Control app, a built-in web interface, schedules, scripting and MQTT.
• Size: 37 x 42 x 16 mm, small enough for a wall box or behind a switch.

Full specifications are in Shelly's knowledge base. For one way to use it with Victron, read our guide to using surplus solar with Victron and Shelly.