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Shelly

Shelly Pro 4PM

SKU 3800235268049

For up to four circuits switched from the consumer unit, with a power reading on each. The Shelly Pro 4PM switches up to 16 A per channel, and 40 A in total.

Manufacturer: Shelly
£102.36 inc VAT

Key features

Wi-Fi Bluetooth
  • Four-channel control for four lights or loads
  • Measures power and energy on the circuit
  • Switches loads up to 16 A
  • Wi-Fi and Bluetooth connectivity
  • Powered from 110 - 240 V
  • Up to 20 schedules, plus scripting, MQTT and webhooks
  • Overheating protection
  • Mounts on a standard DIN rail
  • Set up and run from the Shelly Smart Control app
Product details Manual

Why Shelly Pro 4PM

The Shelly Pro 4PM switches up to 16 A per channel, and 40 A in total

Four channels

Controls four lights or loads separately from one device, so one module covers four circuits.

Energy metering

Reads the power drawn on the circuit and keeps the energy total, so the app shows what each load uses.

Load rating

Switches loads up to 16 A. The manual lists the limits for lamps, motors and other load types.

Connectivity

Connects over Wi-Fi and Bluetooth. Setup runs from the phone, then the device joins the home network.

Local automation

Up to 20 schedules, scripting, MQTT and webhooks run on the device itself, so routines keep working if the internet drops.

Built-in protection

Overheating protection cuts the output before the device or the load is put at risk.

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.

Shelly Smart Control

One free app for every device

This device is added and run from Shelly Smart Control, the free app for iPhone and Android.

  • Rooms, groups and scenes for the whole home
  • Live power readings on devices that measure energy
  • Control away from home, or keep it on the local network

iPhone needs iOS 15 or later. The app is published by Shelly.

Shelly Smart Control on two phones, showing room energy use and live device status.