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Shelly

Shelly 1PM Mini Gen4

SKU 3800238070809

For a light in a shallow back box when you also want to see the power it uses. The Shelly 1PM Mini Gen4 measures 29 x 34 x 16 mm and switches up to 8 A.

Manufacturer: Shelly
£18.30 inc VAT

Key features

Wi-Fi Bluetooth Zigbee
  • Measures power and energy on the circuit
  • Switches loads up to 8 A
  • Wi-Fi, Bluetooth and Zigbee connectivity
  • Powered from 110 - 240 V~
  • Up to 20 schedules, plus scripting, MQTT and webhooks
  • Overheating, overload and overvoltage protection
  • Fits in a wall box behind the switch
  • Set up and run from the Shelly Smart Control app
Product details Manual

Why Shelly 1PM Mini Gen4

The Shelly 1PM Mini Gen4 measures 29 x 34 x 16 mm and switches up to 8 A

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 8 A. The manual lists the limits for lamps, motors and other load types.

Connectivity

Connects over Wi-Fi, Bluetooth and Zigbee. 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, overload and overvoltage protection cuts the output before the device or the load is put at risk.

Hidden install

Small enough to sit in the wall box behind an existing switch, so the room looks the same.

What the Shelly 1PM Mini Gen4 does

The Shelly 1PM Mini Gen4 is a compact relay with built-in power metering for one circuit.

Good for:

  • Lights and appliances up to 8 A
  • Tracking how much energy one circuit uses
  • Tight back boxes and fittings

Key facts

  • Switching: 8A/240 V~
  • Power supply: 110 - 240 V~
  • Size: 29x34x16 ±0.5 mm / 1.34x1.11x0.63 ±0.02 inch

Works with

Runs from the Shelly Smart Control app and works with Amazon Alexa, Google Home and Home Assistant, with no hub needed. Shelly Gen4 devices also support Matter, which works with Apple Home. Connectivity: Wi-Fi, Bluetooth, Zigbee, Matter.

Pairs well with

Also consider

Browse Relays & dimmers, Shelly Mini, all Shelly and what Shelly is.

Guides: How to fit a Shelly Mini behind a UK light switch and Shelly 1L vs Mini: no-neutral UK light switches

Questions

Do I need a hub for the Shelly 1PM Mini Gen4?

No. It connects to your home Wi-Fi directly.

Should an electrician fit it?

We recommend a qualified electrician for anything connected to mains wiring. The manual is linked on this page.

Will the Shelly 1PM Mini Gen4 fit in a UK back box?

The body measures 29 x 34 x 16 mm. Whether it fits depends on the box depth and the cables already in it.

What's the maximum load?

It switches up to 8 A.

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.