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Shelly Pro 3EM Switch Add-On
Shelly Pro 3EM Switch Add-On
Shelly Pro 3EM Switch Add-On

Shelly

Shelly Pro 3EM Switch Add-On

SKU 3800235268131

For switching a contactor from a Shelly Pro 3EM, without a separate supply. The Shelly Pro 3EM Switch Add-On clips onto the meter and switches up to 2 A at 240 V.

Manufacturer: Shelly
£20.81 inc VAT

Key features

  • Measures energy use through current clamps
  • Switches loads up to 2 A
  • Overheating protection
  • Mounts on a standard DIN rail
  • Set up and run from the Shelly Smart Control app
Product details Manual

Why Shelly Pro 3EM Switch Add-On

The Shelly Pro 3EM Switch Add-On clips onto the meter and switches up to 2 A at 240 V

Energy metering

Reads current through its clamps and keeps an energy total, so the app shows what the house or a circuit uses.

Load rating

Switches loads up to 2 A. The manual lists the limits for lamps, motors and other load types.

Built-in protection

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

DIN-rail mounting

Clips onto a standard DIN rail in the consumer unit, next to the breakers it works with.

Shelly Smart Control

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

What the Shelly Pro 3EM Switch Add-On does

The Shelly Pro 3EM Switch Add-On is a galvanically isolated switch add-on that clips to a Shelly Pro 3EM.

Good for:

  • Switching a contactor from Pro 3EM readings
  • Load control based on energy use
  • Solar self-consumption automations

Key facts

  • Switching: 2 A
  • Power: 3.3 V and 12 V (from Shelly Pro 3EM device)
  • Mounting: DIN rail, attached to a Shelly Pro 3EM

Works with

Runs from the Shelly Smart Control app and works with Amazon Alexa, Google Home and Home Assistant, with no hub needed.

Pairs well with

Browse Accessories, Shelly Pro, all Shelly and what Shelly is.

Guide: Which Shelly energy monitor for a UK home?

Questions

Do I need a hub for the Shelly Pro 3EM Switch Add-On?

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.

What's the maximum load?

It switches up to 2 A at 240 V.

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.