Shelly 3EM Energy meter Wi-Fi

The Shelly 3EM is a Wi-Fi-enabled, 3-phase professional energy meter with contactor control and th...

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OnBuy.comShelly Relais "3Em" Wlan Stromzã¤Hler 3X 120A Inkl. 3 Klemmen Messfunktion Din 3800235262214
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Product Information

Full details

The Shelly 3EM is a Wi-Fi-enabled 3-phase energy meter for homeowners and small businesses looking to gain granular insight into their electricity consumption. Its key benefit is real-time monitoring and 365-day data storage, enabling cost reduction and early detection of appliance issues. A potential caveat is its professional-grade nature, requiring some technical understanding for optimal setup. Key features include three independent measurement channels up to 120A each, contactor control, Wi-Fi connectivity, and cloud data storage for historical analysis.

All features

Model Part NumberSHELLY 3EM
BrandShelly

Extended Product Information

FAQs

What is the maximum current the Shelly 3EM can measure?

Each of the three independent measurement channels can support up to 120A.

Does the Shelly 3EM require a neutral wire?

The Shelly 3EM requires connection to at least one phase and a neutral wire for power. Please consult the manual or a qualified electrician for specific wiring diagrams.

How long is the data stored locally?

The device stores up to 365 days of historical energy consumption data internally.

Can I monitor my solar panel generation with the Shelly 3EM?

Yes, the Shelly 3EM supports monitoring energy generated by solar panels or wind turbines.

What is the warranty period for the Shelly 3EM?

The Shelly 3EM comes with a 2-year warranty.

Can I control appliances directly with the Shelly 3EM?

The Shelly 3EM has one contactor control output rated for up to 10A, which can be used to switch loads or control a larger contactor.

Is professional installation required?

Due to mains voltage connections, professional installation by a qualified electrician is strongly recommended for safety and correct operation.

Troubleshooting

Device not connecting to Wi-Fi

Ensure your Wi-Fi network is 2.4 GHz. Verify the Wi-Fi password is correct. Move the device closer to the router or consider a Wi-Fi extender.

Inaccurate energy readings

Confirm that the current transformers (CT clamps) are correctly installed on the correct phases and oriented properly. Ensure the device is properly calibrated within the app if applicable.

App notifications not received

Check notification settings within the Shelly Smart Control app and your phone's operating system. Ensure the device has a stable internet connection.

Contactor not switching

Verify the load connected to the contactor is within the 10A limit. Check the wiring of the contactor control circuit. Ensure the command is being sent correctly via the app.

Pros and Cons

Pros

  • Detailed monitoring of 3-phase electricity usage.
  • Long-term historical data storage (365 days).
  • Enables early detection of appliance issues through consumption anomalies.
  • Supports monitoring of both consumption and generation (solar/wind).
  • Integrates with the Shelly ecosystem for smart home automation.
  • Wi-Fi connectivity simplifies installation compared to wired systems.

Cons

  • Requires a 3-phase power supply for full utilization.
  • Contactor control is limited to 10A.
  • Initial setup may require electrical knowledge.
  • Wi-Fi range limitations might affect connectivity in some locations.
  • No built-in display on the device itself.

Setup, Compatibility & Care

Setup: The Shelly 3EM requires installation by a qualified electrician due to its connection to mains electricity. It connects to your 2.4 GHz Wi-Fi network. After physical installation, the device is configured via the Shelly Smart Control app, where you can set up measurement channels, define alert conditions, and integrate with other Shelly devices.

Compatibility: Compatible with 802.11b/g/n Wi-Fi standards. Works with Amazon Alexa and Google Assistant for voice control. Integrates seamlessly with other Shelly devices through the Shelly Smart Control app.

Care: Keep the device clean and free from dust. Wipe with a dry or slightly damp cloth as needed. Ensure adequate ventilation around the device. Do not expose to extreme temperatures outside its operating range (-40°C to 40°C).

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