Shelly PRO 3EM

Shelly Pro 3EM is a DIN rail-mounted three-phase energy meter. It reports energy consumption, instantaneous voltage, current, and power factor for each phase through the app.

With 1% active energy measurement accuracy, the Shelly Pro 3EM allows you to monitor the energy consumption of any household appliance, electrical circuits, and office equipment separately.

It features 60 days of device-stored data with 1-minute resolution for each phase. Additionally, its scripting functions allow for complex scenarios and provide broader monitoring capabilities.

The Shelly Pro 3EM supports mTLS for MQTT, HTTP, and secure outgoing WebSockets. Industrial-grade security enables direct connection to cloud infrastructure and reduces the costs associated with deploying complex networks and VPNs.

Functionality

• 4-quadrant measurement – measure the types of active imported and exported energy, as well as capacitive and inductive loads.


• B accuracy class (active energy) – the measurement accuracy of the Shelly Pro 3EM is 1%.


• MODBUS support – allows for easy and quick installation in existing industrial systems.


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  Wi-Fi, LAN, and Bluetooth connectivity
  Simultaneous use of Ethernet and Wi-Fi connections. Supports MQTT, incoming and outgoing WebSocket, UDP, and mTLS.
  


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  Power monitoring – monitors single-phase electrical systems up to 3 points simultaneously. Quick notifications and at least 60 days of 1-minute record storage.
  Scripting capabilities – Shelly Pro 3EM fully supports mjS scripts, allowing you to create additional features and functions.
  

Monitor your home, office, or factory to avoid extra costs or voltage drops that could damage your devices and equipment. The Shelly Pro 3EM can calculate two-way consumption: generated and consumed energy for each of the three phases. The device can be configured to measure three separate single-phase electrical system circuits. Review the quality of your electrical network based on active power, reactive power, voltage, and power factor.

With the Shelly Pro 3EM’s scripting and webhooks, you can easily control other Shelly or Wi-Fi devices on your local network. Use these capabilities to set precise heating, cooling, or electric vehicle charging parameters based on photovoltaic energy generation, and your devices will automatically reduce energy consumption. All of this operates without using the cloud.

Solar Collector Monitoring and Management

Monitor how much energy your solar panels or wind turbines generate and effortlessly save. Shelly Pro 3EM provides real-time information about the performance of solar and wind energy systems, as well as historical data on how much energy has been produced and consumed each minute over the past 60 days. This helps manage energy flow and maximize the potential of solar panels and wind turbines. If you want to take it a step further, connect the Shelly Pro 3EM to other Shelly devices and create scenes that trigger desired actions, such as turning off devices or setting alarms.