Shelly
Shelly 1 Mini Gen3
- Native integration
- Local control
- Wi-Fi
- Matter
- Bluetooth
Prices verified September 2026
See more relays & dimmer modules picks on our Amazon storefront →Our verdict
The default cheap HA relay: tiny enough for cramped UK back boxes and rock-solid on the local Shelly integration. Needs a neutral wire, so check your back box before ordering. Deciding between this and the 1PM Mini Gen3 already on the site? Buy the 1PM if you want wattage or an Energy-dashboard entry; buy this one when you just need a dumb on/off relay a few pounds cheaper. Gen3 firmware also gives it native Matter support, so it can join Apple Home or Google Home directly without the Shelly integration. Unlike the Zigbee-only Shelly Wave line, this Gen3 Wi-Fi version isn't Works-with-Home-Assistant certified, though the native integration works identically well.
What can Home Assistant control on the Shelly 1 Mini Gen3?
| Control | Type | What it does |
|---|---|---|
| Switch | Switch | Sole functional entity; opens/closes the dry relay contact — no wattage or state-of-charge attributes. |
| Signal strength | Sensor | Wi-Fi signal strength, disabled by default. |
| Device temperature | Sensor | Internal PCB temperature; relevant given the module runs warmer in cramped back boxes with no ventilation. |
| Uptime | Sensor | Time since last reboot; useful for spotting Wi-Fi/power brown-outs on a device with no other telemetry to cross-check against. |
| Input | Binary sensor | Only created if the physical input is set to switch mode rather than button mode; reflects the state of an attached wall switch independent of the relay's own state. |
The relay itself is a genuine potential-free dry contact, electrically isolated from the module's own supply — so it can bridge a boiler's call-for-heat loop, an intercom trigger, or a doorbell push-button circuit without that low-voltage loop ever sharing a return path with mains. In HA the shelly integration exposes exactly one switch entity for the output; unlike the 1PM Mini there are no power, voltage, current, or energy sensors at all, because this plain variant has no metering IC on the PCB — a hardware omission, not a disabled entity. A useful automation distinct from the 1PM Mini's load-monitoring tricks: wire the dry contact in parallel with an existing wired doorbell push-button and pulse the switch entity briefly from HA, so a video-doorbell press-triggered automation can also ring the original wired chime without the chime circuit ever touching household mains.
Specs
| channels | 1 |
|---|---|
| weight g | 19 |
| max load a | 8 |
| max power w | 2000 |
| dry contacts | true |
| dimensions mm | 29x34x16 |
| rated voltage | 110-240V~ 50/60Hz |
| matter support | true |
| wwha certified | false |
| standby power w | 1.2 |
| neutral required | true |
| operating temp c | -20 to 40 |
| power monitoring | false |
How does the Shelly 1 Mini Gen3 compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| Shelly 1 Mini Gen3 (this product) | £13.49 | Wi-Fi, Bluetooth, Matter | Yes | Native |
| Aqara Dual Relay Module T2 | £29.74 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Aqara Single Switch Module T1 (No Neutral) | £26.99 | Zigbee | Yes | Zigbee2MQTT / ZHA |
| Candeo Zigbee Dimmer Module (C-ZB-DM204) | £39.99 | Zigbee | Yes | Zigbee2MQTT / ZHA |
Frequently asked questions
- Does the Shelly 1 Mini Gen3 work with Home Assistant locally?
- Yes. The Shelly 1 Mini Gen3 is controlled locally in Home Assistant through a built-in Home Assistant core integration (shelly), so it keeps working if your internet connection or the Shelly cloud goes down. Control and state updates stay on your own network.
- Which protocol does the Shelly 1 Mini Gen3 use, and do I need a hub?
- The Shelly 1 Mini Gen3 uses Wi-Fi and Bluetooth and Matter. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly; or a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy; or a Thread border router if it is Matter-over-Thread, or just your Wi-Fi network if it is Matter-over-Wi-Fi. Shelly's own hub is not required when you integrate through a built-in Home Assistant core integration (shelly).
- How much does the Shelly 1 Mini Gen3 cost in the UK?
- The lowest price we have listed for the Shelly 1 Mini Gen3 is £13.49 at Shelly Store UK. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.