
The Shelly Pro 3EM 120A three-phase energy meter allows you to monitor the electricity consumption and generation in your home, office, industrial facility or photovoltaic system in detail. Using three 120A current transformers, it measures individual phases and provides real-time data on voltage, current, active and apparent power, energy and power factor, while measuring active energy with 1% accuracy and Class B accuracy. Four-quadrant measurement allows you to monitor both imported and exported energy, making the Shelly Pro 3EM 120A energy meter also useful for monitoring photovoltaic, wind power or other systems with bidirectional energy flow. You can analyse the measured data retrospectively for savings opportunities. The Shelly Pro 3EM 120A offers Wi-Fi, Bluetooth and LAN connectivity, supports Matter, MODBUS, MQTT, webhooks and mJS scripting, allowing it to be integrated into professional and industrial automation. Using local scenes, you can react to surpluses from photovoltaics and control heating, cooling or electric car charging without relying on the cloud. The energy meter is installed directly on a DIN rail.
Through the Google Home app, you can control smart bulbs, thermostats, cameras or speakers, all from one place, by touch or by voice. Everything you need is set up by following the on-screen instructions in the app installed on your smartphone. Google Home supports thousands of devices from different manufacturers.
To use the product's smart features, you need to add the device to the manufacturer's app. You can find more information about the app (name, supported OS, supported languages) and how to add the device to the app in the product manual.
In industrial installations, the Shelly Pro 3EM 120A gives you a detailed overview of energy consumption and the current status of the electrical grid. Thanks to MODBUS protocol support, you can transfer voltage, current, power and energy data to your infrastructure and use it for further monitoring or operational automation. The energy meter allows you to monitor instantaneous values of electrical quantities and, thanks to its flexible firmware platform, also supports custom implementations that can transmit data to the infrastructure at intervals of up to 100ms.
The Shelly Pro 3EM 120A will give you an overview not only of the electricity consumed, but also of the electricity generated and supplied. Thanks to the two-way measurement, you can separately monitor the energy flow on each of the three phases, which you will appreciate, for example, when monitoring a household, office, industrial operation or photovoltaic system. The energy meter can also be configured to measure three separate circuits of a single-phase electrical installation. In addition to consumption, you get information on active and reactive power, voltage and power factor, allowing you to better assess the state of the electrical grid.
Thanks to scripting and webhooks, the Shelly Pro 3EM 120A energy meter can not only monitor energy consumption, but also automatically react to the current situation in the electrical grid. You can connect the energy meter to other Shelly devices or compatible Wi-Fi devices on your local network and create automations for heating, cooling or electric car charging, for example, based on the current photovoltaic production. When there is enough surplus energy, the energy meter can start selected appliances, while a drop in production will help to limit their operation. These automations can run locally without using the cloud.
The Shelly Smart Control app gives you a clear interface for managing your energy meter and other smart home devices. In the app you can monitor electricity consumption and generation, check measured values and evaluate energy costs, making it easier to see where you can optimise the operation of your home or business. Shelly Smart Control also allows you to organise devices by individual rooms and spaces and create automations for more convenient management of the entire installation.
Shelly Group LLc., : 51 Cherni Vrah Blvd., building 3, floor 2 and 3, 1407 Sofia, Bulgaria, [email protected] , +359 2 957 1249
Specifications can be changed without notice. Images are for illustrative purposes only.