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Shelly Pro 3EM
Shelly Pro 3EM
Shelly Pro 3EM
Shelly Pro 3EM
Shelly Pro 3EM
Shelly Pro 3EM
Shelly Pro 3EM

Shelly

Shelly Pro 3EM

SKU 3800235268193

For watching a single-phase or three-phase supply from the consumer unit. The Shelly Pro 3EM clips onto the DIN rail, comes with a choice of 63 A, 120 A or 400 A current clamps, and keeps at least 45 days of one-minute readings.

Manufacturer: Shelly
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£103.50 inc VAT

Key features

Wi-Fi Bluetooth
  • Measures energy use through current clamps
  • Wi-Fi and Bluetooth connectivity
  • Powered from 100-260 V~ 50/60 Hz
  • 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 3EM

The Shelly Pro 3EM clips onto the DIN rail, comes with a choice of 63 A, 120 A or 400 A current clamps, and keeps at least 45 days of one-minute readings

Energy metering

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

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.

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 does

The Shelly Pro 3EM is a DIN-rail energy meter for single or three-phase supplies, with a choice of current transformers.

Good for:

  • Whole-house and three-phase monitoring
  • Solar generation and export
  • Commercial and larger domestic supplies

Key facts

  • Current range (3CT63): 0 - 63 A
  • Accuracy: ±1 % (2 - 63 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A)
  • Measures: Active and apparent power; Active and apparent energy; Power factor; Fundamental active and fundamental reactive energy
  • Data: At least 60 days of 1 min data resolution

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.

Pairs well with

Also consider

Browse Relays & dimmers, 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?

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.

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.