A conditional local mqtt route is documented for Shelly 1 Gen4 and Home Assistant. It requires the exact model, region, controller and feature checks below; no hands-on pair test is recorded.
Short answer and model scope
The first decision is whether the product in hand matches this researched model and US variant. A shared marketing name can hide another radio, electrical rating or firmware path. The table marks what this record identifies and what still needs checking on the package.
| Check | Recorded value |
|---|---|
| Model label | Exact retail model number not resolved |
| US variant | Exact retail SKU not fully resolved |
| Availability | Documented Product |
| Physical pairing test | None |
| Wi-Fi Bands | 2.4 GHz |
How the connection is supposed to work
This route uses a local MQTT broker and the manufacturer’s supported device configuration. MQTT service availability and radio mode are separate from Matter platform support.
| Path element | What this record says |
|---|---|
| Accessory | Shelly 1 Gen4 |
| Connection method | Local Mqtt |
| Target | Home Assistant |
| Research result | Conditional, with requirements below |
Requirements to check before pairing
| Requirement | Why it matters |
|---|---|
| Mqtt Broker And Configuration | Confirm this requirement in the manufacturer and platform instructions for the exact model. |
| Firmware minimum | No reliable minimum is recorded here. Check the installed version and current support note. |
If the device or hub is from another region, stop and verify the radio band, voltage, plug or installation requirements separately. A US-targeted record is not evidence for an EU variant.
Feature scope
| Function | Status |
|---|---|
| On/off control | Documented only as part of this conditional route |
This list is a ceiling on what the current evidence names, not proof that every listed action works in your home. Features absent from the list—including vendor scenes, energy data, video, keys or advanced automations—remain unverified unless another source establishes them.
Limits and a safe setup sequence
- Zigbee mode disables BTHome components in the manufacturer FAQ.
- US installation certification must be checked independently.
- Check the exact printed model or hardware version and US electrical or radio variant.
- Confirm the selected controller or bridge has the required role and current supported firmware.
- Use the manufacturer’s current pairing flow, keeping the private setup code on your device.
- Test the specific documented function before adding automations or resetting an existing setup.
Official documentation
- Shelly — Shelly 1 Gen4 technical specifications Reviewed 2026-10-30
This path was reviewed 2026-10-30. A source link supports the stated route within its scope; it is not a physical test, stock check or guarantee of your current firmware.