Shelly Pro 3EM Professional 3 channel wifi relay and contactor control

Description

⚡ Shelly Pro 3EM - Three-phase smart energy meter with contactor control

Accurate monitoring for three-phase networks + advanced control in the smart ecosystem

The Shelly Pro 3EM is a professional three-phase, DIN-rail mountable energy meter designed for advanced monitoring of electricity consumption in residential, commercial or industrial installations. Equipped with Wi-Fi, LAN and Bluetooth connectivity, it provides accurate measurements and real-time control directly from the Shelly app or your favourite automation platform.

It is ready for integration into PV systems and supports contactor control for efficient electrical load management. With scripting functionality, webhooks and support for industrial protocols, Shelly Pro 3EM takes energy automation to the next level.

✅ Key Features

🔌 F ull 3-phase monitoring
✔️ Voltage, current, active/apparent/reactive power
✔️ Energy consumed and generated - for each phase
✔️ 4 quadrant measurement with up to 1% accuracy (class B - IEC 62053-21)
✔️ Bidirectional calculations - ideal for prosumers

🌍 Professional connectivity
✔️ Wi-Fi 2.4GHz, LAN and Bluetooth
✔️ Support MQTT, HTTP/HTTPS, WebSocket, MODBUS TCP
✔️ mTLS, TLS and customised certificates for industrial security
✔️ Works without hub or cloud, directly on the local network

🧠 Advanced automation & scripting
✔️ Direct contactor control (dedicated output)
✔️ Execute complex scenes based on consumption, output or network status
✔️ Webhooks, trigger rules and chain actions
✔️ Ideal for optimising EV charging, heating or cooling

🔁 F ull energy data history
✔️ Local storage for up to 60 days at 1 minute intervals
✔️ Detailed analyses without external server
✔️ Real-time visualisation of network quality (power factor, voltage, variations)

🔧 Professional DIN rail mounting
✔️ Easy installation in switchboards
✔️ Compatible with 3-phase or 3 single-phase infrastructures
✔️ Includes 3 x 120A current transformers

☀️ Ready for integration into solar or wind systems

Shelly Pro 3EM provides a clear picture of the energy produced and consumed by renewable systems. It visualises the performance of solar panels or wind turbines and triggers intelligent actions to optimise household consumption based on output.

📦 What the bundle includes:

• 1x Shelly Pro 3EM

• 3x 120A metering clamps

• DIN rail mounting bracket

💡 With the Shelly Pro 3EM, energy monitoring and optimisation is no longer just for professionals - it's accessible directly from your smart app! Ideal for smart homes, modern offices and connected industrial plants.