What the Shelly Pro 4PM does
The Shelly Pro 4PM is a four-channel DIN-rail relay with power metering on each channel.
Good for:
- Up to four circuits from the consumer unit
- Measuring power per circuit
- Wired LAN as well as Wi-Fi
Key facts
- Switching: 16 A per channel, 40 A total
- Neutral wire: Needed
- Size: 96x53x59 ±0.02 mm / 3.78x2.01x2.32 ±0.02 in
Works with
Runs from the Shelly Smart Control app and works with Amazon Alexa, Google Home and Home Assistant, with no hub needed. Connectivity: Wi-Fi, Bluetooth, LAN.
Also consider
Browse Relays & dimmers, Shelly Pro, all Shelly and what Shelly is.
Guide: Shelly Mini vs Pro vs BLU vs Wave: which to buy in the UK
Questions
Does the Shelly Pro 4PM need a neutral wire?
Yes. It needs a neutral wire where it is fitted.
Do I need a hub for the Shelly Pro 4PM?
No. It connects to your home Wi-Fi directly or to the network by cable.
Should an electrician fit it?
We recommend a qualified electrician for anything connected to mains wiring. The manual is linked on this page.
What's the maximum load?
It switches up to 16 A on each channel, and 40 A in total.
Does it work with Home Assistant without the cloud?
Yes. It works with Home Assistant on the local network.