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Shelly Plus i4
Shelly Plus i4
Shelly Plus i4
Shelly Plus i4

Shelly

Shelly Plus i4

SKU 3800235265079

For turning up to four existing switches into scene buttons. The Shelly Plus i4 measures 37 x 42 x 16 mm and draws under 1 W.

Manufacturer: Shelly
£12.44 inc VAT

Key features

Wi-Fi Bluetooth
  • Four inputs for existing switches or buttons
  • Wi-Fi and Bluetooth connectivity
  • Powered from 110 - 240 VAC
  • Schedules, plus scripting, MQTT and webhooks
  • Overheating protection
  • Fits in a wall box behind the switch
  • Set up and run from the Shelly Smart Control app
Product details Manual

Why Shelly Plus i4

The Shelly Plus i4 measures 37 x 42 x 16 mm and draws under 1 W

Four inputs

Turns four existing switches or buttons into triggers for scenes, lights or other devices.

Connectivity

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

Local automation

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.

Hidden install

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

Shelly Smart Control

Add the device, name it and build scenes from the free app on iPhone or Android.

What the Shelly Plus i4 does

The Shelly Plus i4 is a four-input controller with no relay, for scenes and actions across other Shelly devices.

Good for:

  • Turning existing switches into scene buttons
  • Controlling several relays from one switch
  • Multi-click actions

Key facts

  • Power supply: 110 - 240 VAC, 50/60 Hz
  • Mounting: Wall box
  • Size: 37x42x16 ±0.5 mm / 1.46x1.65x0.63 ±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.

Pairs well with

Also consider

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

Guide: Does Shelly work with Home Assistant in the UK?

Questions

Do I need a hub for the Shelly Plus i4?

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.

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
Download on theApp Store Get it onGoogle Play

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.