# Shelly Pro 1PM

*Shelly / SPSW-201PE16EU*

> The Shelly Pro 1PM mounts in a DIN-rail panel. It is a one-channel relay that measures power and has an Ethernet port. It suits Google Home, Alexa and SmartThings users through an integration (the maker's cloud). Home Assistant users reach it through an integration (local Wi-Fi control).

- Canonical page: https://smarthomecanon.com/devices/shelly-pro-1pm
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Shelly](https://smarthomecanon.com/brands/shelly) |
| Category | Relay module |
| Model numbers | SPSW-201PE16EU |
| Status | Current[^1][^2] |
| Generation | Pro (DIN rail)[^3] |
| Model code | SPSW-201PE16EU[^4] |
| Power measurement | Voltage and current[^4] |
| Neutral wire | Neutral required[^4] |
| Max load | 16 A at 240 V~[^4] |
| Radio | Ethernet, Wi-Fi, Bluetooth 4.2[^4] |
| Matter | unknown |
| Local API | HTTP API, MQTT and webhooks[^4][^5] |

## Integration paths

**How the Shelly Pro 1PM connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Wi-Fi local](https://smarthomecanon.com/protocols/wifi-local) | withheld | withheld | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | Vendor cloud account[^4] | No[^4] | unknown |

**Platform support for the Shelly Pro 1PM**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Wi-Fi local | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | Shelly |
| Wi-Fi local | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | cloud.shelly |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^4] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^4] |  |
| Wi-Fi cloud | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^4] |  |

## Related pages

- [Shelly relays by generation](https://smarthomecanon.com/lines/shelly-relays) (line)
- [Shelly](https://smarthomecanon.com/brands/shelly) (brand)
- [Wi-Fi with local control](https://smarthomecanon.com/protocols/wifi-local) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)

## Sources

[^1]: Shelly Pro 1PM - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-1pm (manufacturer, checked 2026-10-09)
[^2]: Shelly Europe shop catalog (Shopify product feed, pages 1-3). https://www.shelly.com/products.json?limit=250&page=1 (manufacturer, checked 2026-10-09)
[^3]: Shelly Pro devices - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-devices (manufacturer, checked 2026-10-09)
[^4]: Shelly Pro 1PM - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-1pm-v1 (manufacturer, checked 2026-10-09)
[^5]: Shelly Technical Documentation. https://shelly-api-docs.shelly.cloud/ (manufacturer, checked 2026-10-09)