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Shelly Pro 3EM-400 is a DIN rail-compatible three-phase energy meter designed for advanced energy monitoring. Equipped with Gen2 firmware features and LAN connectivity, it gives professional integrators greater flexibility to deliver tailored end-customer solutions. Shelly Pro 3EM-400 provides real-time reporting of accumulated energy, voltage, current, and power factor per phase.
Advanced 3-Phase Monitoring: A compact, DIN-mountable meter featuring Wi-Fi, Bluetooth, and LAN support. With 1% accuracy in active energy measurement, its the perfect choice for tracking the energy use of household appliances and office systems individually.
Important Note: This device does not feature a built-in relay. To enable contactor control, it requires a Shelly Pro Add-on connected to the Shelly Pro 3EM-400.
Secure Cloud Connectivity: Shelly Pro 3EM-400 leverages industry-standard mTLS encryption for MQTT, HTTP, and outbound WebSockets, ensuring secure direct cloud connections while minimizing the need for complex network setups and VPNs.
Optimized for Industrial Use: Offering full MODBUS support, Shelly Pro 3EM-400 can monitor voltage, current, power, and energy metrics with high precision. Its flexible firmware platform allows real-time sampling and reporting intervals as fast as every 100 milliseconds.
Bidirectional Energy Tracking: Gain full visibility over your energy flow by monitoring both consumption and production separately for each of the three phases, helping to avoid costly inefficiencies and safeguard sensitive equipment.
Local Network Automation: Thanks to built-in scripting capabilities and webhook integration, Shelly Pro 3EM-400 allows you to manage Shelly and Wi-Fi devices directly over your local network. Automate heating, cooling, or EV charging based on PV production without relying on external cloud services.