What is Shelly Gen3?
Shelly Gen3 is the third generation of smart relays and plugs from Shelly. They offer improved Wi-Fi stability, built-in Bluetooth and full native support for Home Assistant with no extra configuration needed.
The Gen3 range includes:
- Shelly 1PM Gen3 — single-channel relay with power metering
- Shelly 2PM Gen3 — dual-channel relay, ideal for blinds and shutters
- Shelly 1PM Mini Gen3 — ultra-compact relay for switch boxes
- Shelly Plug S MTR Gen3 — smart plug with consumption metering
Why we recommend them: Shelly Gen3 devices support native Home Assistant integration via the Shelly integration — no MQTT or custom firmware required.
Installation
Installation is done inside the switch box or distribution panel. Gen3 devices are powered by the same phase they control:
- Connect Phase (L) to the input and the output to the load
- Neutral (N) is required for most models
- Use at least 1.5mm² cable for loads up to 16A
Wi-Fi Setup
After installation, the Shelly broadcasts its own Wi-Fi hotspot. Connect to it and open 192.168.33.1 in your browser to access the web interface. From there configure your home Wi-Fi network.
Home Assistant Integration
Home Assistant automatically discovers Shelly devices on the same network. Go to Settings → Integrations, search for "Shelly" and add the device.
If it doesn't appear automatically, add it manually using its IP address from the same menu.
Video guide: Watch the full guide on our YouTube channel.
Watch on YouTube →Conclusion
Shelly Gen3 devices are one of the easiest ways to get started with smart home. No hub required, they work locally and integrate seamlessly with Home Assistant.