Shelly 3EM can be connected to any Wi-Fi network or can operate as an Access Point.

Control remotely

Control Shelly 3EM directly from your smartphone or tablet and manage its output from the Shelly Cloud app, MQTT, or Rest API.

Highly compatible

Shelly 3EM is compatible with both Android and iOS.

Overconsumption and over energy protection

Shelly 3EM will automatically turn off the whole circuit if consumption or energy reaches the set limit.

Sunrise/Sunset schedules

Automatically follow the sun and turn Shelly 3EM ON/OFF based on the sunrise and sunset hours.

Weekly schedules

Choose a time and create custom daily schedules for your Shelly 3EM.

Monophase systems

Shelly 3ЕМ can also monitor monophase electrical systems with up to 3 points simultaneously.

Why Shelly 3EM

The professional 3-phase energy meter.
Shelly 3EM can calculate 2-way consumption: produced and used energy for each of the three phases. The device can be configured to measure three separate points of a mono-phase electrical system and measure each of them separately.

Energy Efficiency

Many homes and buildings use more energy than they need. That leads to inefficiencies, energy waste, and eventually increased monthly bills.
Shelly home and facility automation solutions can help you reduce the energy waste and your monthly bills by up to 30% through a 3-step cycle of energy efficiency.

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energy saving diagram

For Developers

Shelly 3EM comes with a programming/debug header that can be used for flashing alternative firmware to the device. It has ESP8266 inside, with 4MB flash. A USB-to-UART adapter is needed as well as a reliable 3.3V power supply with at least 350 mA drive capability.

Device pinout ›

Visit our REST API for developers ›

Knowledge base Shelly 3EM

Knowledge base ›