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Shelly

Shelly EM Gen3 50A. Smart Energy Meter with Dry Contact & Wi-Fi - Bluetooth

Shelly EM Gen3 50A. Smart Energy Meter with Dry Contact & Wi-Fi - Bluetooth

EM Gen 3_50

Condition: New

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$61.99 USD
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Monitor real-time energy consumption and control heavy loads with Shelly EM Gen3. Designed for precise power monitoring using current transformers, with dry contact output for contactor control and seamless Wi-Fi & Bluetooth connectivity.

Shelly EM Gen3 is a compact smart energy meter designed to monitor electricity consumption in real time using current transformers. It allows you to track usage patterns, optimize energy efficiency, and reduce electricity costs.

Equipped with Wi-Fi and Bluetooth connectivity, Shelly EM Gen3 connects directly to your network without requiring a hub. It supports up to two current transformers for single-phase, dual-channel energy measurement and includes a dry contact output for controlling external contactors or high-load devices.

Thanks to its powerful Shelly Gen3 chip with 8 MB of memory, local data storage, scripting support, and wide platform compatibility, Shelly EM Gen3 is ideal for residential, commercial, and professional energy monitoring applications.

Why Shelly EM Gen3

Monitor and save energy from anywhere

Get detailed insights into how and when your appliances consume energy. Shelly EM Gen3 helps you identify inefficiencies, optimize usage, and reduce electricity bills — all without invasive wiring or external hubs.

Key Features

  • Wi-Fi and Bluetooth connectivity (no hub required)
  • Single-phase energy monitoring with up to 2 current transformers
  • 50A clamp included
  • Real-time power and energy measurement
  • Dry contact output for contactor control
  • Local data storage on device (up to 10 days, 1-minute intervals)
  • Cloud data history up to 365 days
  • Shelly Gen3 chip with 8 MB memory
  • Supports schedules and real-time clock
  • Advanced automation via scripting, webhooks, MQTT, WebSocket, HTTP, RPC
  • Wide compatibility with smart home and energy management platforms
View full details

Common Use Cases

  • Whole-Home Energy Monitoring

    Track total home energy consumption in real time using current transformers.

  • HVAC & Heat Pump Monitoring

    Monitor energy usage of HVAC systems to detect inefficiencies and abnormal consumption.

  • Water Heaters & High-Load Devices

    Control contactors and monitor power usage of water heaters, boilers, and heavy loads.

  • Solar & Renewable Systems

    Measure energy production and consumption in solar or hybrid energy setups.

  • Commercial & Industrial Panels

    Ideal for monitoring circuits in electrical panels, shops, offices, and small facilities.

  • Energy Optimization & Automation

    Create automations and alerts based on real-time power usage and thresholds.

Functionalities

  • Wi-Fi and Bluetooth connectivity

    Connect Shelly ЕМ Gen3 to your Wi-Fi network. No HUB required! Quick inclusion via Bluetooth or use it as a Bluetooth gateway.

  • Dry contact switch

    For contactor control of heavier loads

  • Smart Scenes

    Set custom scenes by combining Shelly EM Gen3 with your other Shelly devices to control energy use.

  • Current transformers connection

    Connect up to 2 current transformers. No need for extra wiring!

  • Local data storage

    Data logs stored on device for up to 10 days in 1-minute intervals. When connected to the cloud, data logs go back to 365 days.

  • Scripting

    Fully supports scripting, allowing you local control and custom functionalities.

Frequently Asked Questions

Does Shelly EM Gen3 require a hub?

No. It connects directly via Wi-Fi and supports Bluetooth for easy setup.

How many current transformers can I connect?

Up to two CTs for single-phase, dual-channel monitoring. One 50A clamp is included.

Can it control high-power devices directly?

No. It uses a dry contact output to control external contactors for heavy loads.

Is energy data stored locally?

Yes. The device stores up to 10 days of data locally. Cloud history can extend up to 365 days.

Is it compatible with automation platforms?

Yes. It supports Shelly Smart Control, MQTT, scripting, webhooks, and integrates with most automation systems.

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.

 Shelly App
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms Shelly compatible platforms

No hub required, Universally compatible

Shelly Products can be controlled locally, directly and without a hub through your smartphone/table with Shelly App - no hub or other equipment needed. Enable cloud feature and get remote control from anywhere. At the same time, you can integrate Shelly directly with virtually every smart home hub, voice assistant, open source platform, or premium control system.
Shelly App
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms
Shelly compatible platforms Shelly compatible platforms

Warranty

New Products

  • USA Pro Market Manufacturer Warranty: Lifetime manufacturer warranty (only if installed by a professional within USA) when purchased at Digital Bay Tech.

  • Retail Standard Manufacturer Warranty (included in purchase price): 2, 3 or 5 years manufacturer warranty covers only the hardware (corpus, mechanics, and display, if any) and does not cover consumables (battery) and accessories insofar as these are subject to exhaustion (decrease of their useful life) depending on the intensity of their use. Device malfunctions are only covered when device is used as described conditions within user manual (max loads, proper installation, etc.). Please check refund policy for further details.
  • Gen 1: 2 years.
  • Plus, Gen3, Gen4, Wave: 3 years.
  • Pro Line: 5 years.

Special Notes

  • Do It Yourself: Devices are technically user-installable in many locales, nevertheless consulting a licensed electrician to install shelly components is recommended; in addition to being licensed to work with electrical devices, they are also familiar with local building codes and regulations to keep your safety.
  • Manufacturer's Safety note: Each Shelly device generates heat under load. Do not combine two or more Shelly devices stacked on top of or beside each other in a confined space. There must be a minimum distance of 0.4 inch / 1 cm between them to allow for airflow.

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