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Shelly

Shelly 3EM-63W Gen3

SKU 3800235261958

For a three-phase board where the meter connects by wires rather than flat terminals. The Shelly 3EM-63W Gen3 measures up to 63 A on each phase.

Manufacturer: Shelly
£60.47 inc VAT

Key features

Wi-Fi Bluetooth
  • Measures energy use through current clamps
  • Wi-Fi and Bluetooth connectivity
  • Powered from 220-240 V~ 50/60 Hz
  • Up to 20 schedules, plus scripting, MQTT and webhooks
  • Overheating protection
  • Set up and run from the Shelly Smart Control app
Product details Manual

Why Shelly 3EM-63W Gen3

The Shelly 3EM-63W Gen3 measures up to 63 A on each phase

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

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.

Shelly Smart Control

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

What the Shelly 3EM-63W Gen3 does

The Shelly 3EM-63W Gen3 is a three-phase energy meter that mounts above or below DIN-rail circuit breakers, with wire connections.

Good for:

  • Whole-house three-phase monitoring
  • Three separate single-phase circuits
  • EV charger circuits

Key facts

  • Current range: 0 - 63 A (130 A saturation)
  • Accuracy: ±1 % (2 - 63 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A)
  • Mounting: Above or under DIN-rail mounted circuit breakers
  • Measures: Active and apparent power; Active and apparent energy; Power factor; Fundamental active and fundamental reactive energy

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.

Also consider

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

Guide: Which Shelly energy monitor for a UK home?

Questions

Do I need a hub for the Shelly 3EM-63W Gen3?

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

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.