# Shelly 1PM Gen3

Shelly 1PM Gen3 is a direct Matter-over-Wi-Fi relay with power monitoring for Shelly-heavy homes. The safer expectation is Matter for the shared endpoint and Shelly for firmware, diagnostics, and any detailed power data.

Canonical page: https://matterhome.io/devices/shelly-1pm-gen3
Markdown page: https://matterhome.io/devices/shelly-1pm-gen3.md
Author: Matterhome Editorial Team
Author profile: https://matterhome.io/authors/matterhome-editorial-team
Edited and fact-checked by: JC Martinez
Editor profile: https://matterhome.io/authors/jc-martinez

## Device Facts

- Brand: Shelly
- Model: 1PM Gen3
- Product type: Matter-over-Wi-Fi Relay with Power Monitoring
- Category: Switches
- Connection: Matter over Wi-Fi
- Matter status: CSA lists Shelly 1PM Gen3 as a Matter 1.2 product using Wi-Fi, Bluetooth, certified on 2025-01-15.
- Launch date: 2025-01-15
- Thread border router required: No
- Brand hub required: No
- Typical price range: €15-€40
- Review status: Compatibility guide
- Product image: https://matterhome.io/content-assets/devices/shelly-1pm-gen3/product.png
- Product image alt text: Shelly 1PM Gen3 product image
- Product image source: https://cdn.shopify.com/s/files/1/0871/9967/8813/files/Shelly-1PM-Gen3-main-image.png?v=1727260149

## Ecosystem Support

- Apple Home: Supported
- Google Home: Supported
- Alexa: Supported
- SmartThings: Supported
- Home Assistant: Limited

## Best For

- Retrofit relay jobs behind a switch or outlet
- Shelly users who want direct Matter sharing
- Loads where power draw helps automation decisions

## Skip If

- The wiring or load requirements are uncertain
- You need a finished decorative wall control
- Your ecosystem must expose full power history

## Setup Notes

- Confirm wiring, load type, neutral requirements, and enclosure space before buying.
- Install and test in Shelly before Matter pairing.
- Keep Shelly available for firmware and power or relay settings.

## Known Limitations

- Matter may expose relay control more consistently than power or diagnostic detail.
- Shelly app or web UI may still be needed for firmware, setup, diagnostics, and advanced behavior.
- Local Wi-Fi reliability still determines the normal Matter connection path.

## Pros

- Direct Matter-over-Wi-Fi relay control
- No Thread border router or Shelly hub required
- Power monitoring can add load context
- Shelly app and web UI remain available for firmware and settings

## Cons

- Installation depends on wiring, enclosure space, and load type
- Power data may not be equally exposed everywhere
- Shelly-specific settings may stay outside Matter

## Sources

- https://csa-iot.org/csa_product/shelly-1pm-gen3/
- https://www.shelly.com/products/shelly-1pm-gen3
- https://cdn.shopify.com/s/files/1/0871/9967/8813/files/Shelly-1PM-Gen3-main-image.png?v=1727260149

## Direct Matter without a Shelly hub

Shelly 1PM Gen3 is listed by CSA as a Matter over Wi-Fi device. That makes the Matter path direct: it joins a Matter controller over Wi-Fi and does not need a Thread border router or a Shelly bridge for the Matter endpoint.

## Setup path

For a relay, start with wiring, load type, enclosure space, and local electrical code before the app setup.

Use Shelly's app or web interface for Wi-Fi onboarding, firmware, device settings, calibration, and any device detail that your Matter ecosystem does not expose cleanly.

## What to verify

Matter should cover the common endpoint, but the valuable details can vary. For Shelly meters, plugs, and PM relays, verify wattage, energy totals, and reporting frequency. For flood and motor-control devices, test the exact alert or movement behavior before building routines around it.

## Should you buy it?

Buy 1PM Gen3 when the physical format fits the job and you want a direct Wi-Fi Matter path. Skip it if you need every Shelly app feature to appear identically in Apple Home, Google Home, Alexa, SmartThings, and Home Assistant.