
The Shelly Pro 3EM is a three-phase energy meter designed for DIN rail mounting, making it an ideal choice for home and commercial energy monitoring applications. With Wi-Fi, LAN and Bluetooth support, it offers a reliable and flexible connection for monitoring the power consumption of three independent phases or three separate electrical circuits. Shelly Pro 3EM provides accurate energy metering with up to 1% accuracy and supports bi-directional metering, which is ideal for renewable energy applications such as photovoltaic systems. Consumption data can be used for detailed analysis and optimization of energy management. With mjS scripting, you can create advanced automation scenarios and customize the device to your exact needs. The Shelly Pro 3EM power meter is equipped with robust overvoltage and overload protection to ensure safe and long-lasting operation. You can easily integrate the module with platforms such as Home Assistant or the Amazon Alexa and Google Assistant voice assistants. Shelly Pro 3EM brings performance, reliability and accurate energy monitoring directly to your rack.

The Shelly Pro 3EM power meter offers flexible and reliable connectivity via Wi-Fi, LAN and Bluetooth, ensuring seamless integration into your smart home or industrial installation. Thanks to the possibility of simultaneous use of Ethernet and Wi-Fi, you are assured of stable communication and fast response. The device supports advanced protocols such as MQTT, inbound and outbound WebSocket, UDP and mTLS to ensure secure and efficient communication. Shelly Pro 3EM is also compatible with Home Assistant, allowing for easy integration and centralized management within the smart ecosystem.

Shelly Pro 3EM supports bi-directional metering that allows real-time monitoring of both consumption and energy production. This feature is ideal for homes and commercial premises using photovoltaic systems or other renewable energy sources. With accurate metering, you can monitor how much energy your solar panels are producing and how much you are sending back to the grid, giving you full control over your energy flow. Shelly Pro 3EM helps you to optimise consumption, increase energy efficiency and reduce operating costs.

The Shelly Pro 3EM power meter allows monitoring of single-phase electrical systems at up to 3 separate points simultaneously, providing a detailed view of energy flows. With instant notification capability, you get instant information about changes in power or consumption. The device also keeps a detailed history with 1-minute records for at least 60 days, allowing you to analyse long-term trends and optimise the operation of electrical systems in your home or commercial premises.

Shelly Pro 3EM offers full MODBUS protocol support, allowing easy integration into industrial energy management systems. This standardized communication protocol ensures reliable and efficient data transfer between Shelly Pro 3EM and other controllers or software platforms. MODBUS support makes Shelly Pro 3EM the ideal solution for monitoring and managing energy consumption in industrial installations where accuracy, speed and scalability are important.

The Shelly Pro 3EM series introduces a revolutionary "virtual component" feature that changes the way you manage and control devices from different manufacturers. With Shelly Smart Control, you can create virtual devices that make it easy to integrate other brands into a single control system. With this feature, you can control all smart devices, regardless of their origin, from one clear interface.

The Shelly Pro 3EM power meter delivers maximum convenience and flexibility by supporting voice assistants such as Amazon Alexa and Google Assistant, which allow you to control the device using voice commands. In addition, it offers advanced automation capabilities with MQTT, Webhooks, HTTPS and mjS scripting, making it an ideal choice for smart homes and commercial spaces. These technologies allow you to create complex scenarios such as automatic lighting control, blind synchronization, fan triggering or integration with smart home systems such as Home Assistant or Node-RED.

Shelly Pro 3EM is designed with professional installations in mind, making it ideal for DIN rail mounting in electrical cabinets. This practical design allows easy and quick integration into homes and commercial spaces where centralized device control is needed. The robust design ensures reliable operation and long life, making Shelly Pro 3EM the ideal solution for modern automation and electrical systems management.


Shelly Pro 3EM is ideal for industrial and home applications, where it enables accurate monitoring of voltage, current, power and energy with MODBUS support and data sampling up to every 100ms. It provides two-way power metering to monitor energy produced and consumed, analyzes the quality of the power grid, and protects equipment from voltage drops. Thanks to mjS scripting and web hooks, it enables local automation, for example controlling heating, cooling or charging electric cars based on production from photovoltaic panels. It stores historical data with 1-minute records for 60 days, making it easy to optimize the use of solar and wind systems.

The Shelly Smart Control app is the perfect tool for managing Shelly Pro 3EM and other devices in your smart home or commercial space. It allows you to easily monitor energy consumption on three independent phases, track historical data and analyze energy flows in real time. The intuitive interface makes configuring the device fast and convenient, whether you're at home, in the office, or on the go. The app supports unified control of all elements of the Shelly ecosystem, ensuring efficient management and centralized control of your entire energy infrastructure from one clear interface.
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.