# Shelly Pro 4PM

*Shelly / SPSW-004PE16EU, SPSW-104PE16EU*

> The Shelly Pro 4PM is a four-channel DIN-rail relay that measures power and has an Ethernet port. It comes in two hardware versions with different terminals. 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-4pm
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Shelly](https://smarthomecanon.com/brands/shelly) |
| Category | Relay module |
| Model numbers | SPSW-004PE16EU, SPSW-104PE16EU |
| Status | Current[^1][^2] |
| Generation | Pro (DIN rail)[^3] |
| Model code | SPSW-004PE16EU (V1), SPSW-104PE16EU (V2)[^4] |
| Power measurement | Voltage and current[^4] |
| Neutral wire | Neutral required[^4] |
| Max load | 16 A per channel, 40 A total, 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 4PM 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 4PM**

| 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 4PM - Shelly Europe shop. https://www.shelly.com/products/shelly-pro-4pm (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 4PM - Shelly Knowledge Base. https://kb.shelly.cloud/knowledge-base/shelly-pro-4pm (manufacturer, checked 2026-10-09)
[^5]: Shelly Technical Documentation. https://shelly-api-docs.shelly.cloud/ (manufacturer, checked 2026-10-09)