Shelly Pro 3EM (3xClamp 400A), 3 channel wifi relay and contactor control

Description

⚡ Shelly Pro 3EM (3x Clamp 400A) - Three-phase smart meter for industrial consumption

High power energy monitoring and contactor control in the Shelly ecosystem

Shelly Pro 3EM is the three-phase smart meter dedicated to real-time energy consumption monitoring in home, commercial and industrial applications. With Wi-Fi, LAN and Bluetooth connectivity, advanced Gen2 firmware and compatibility with photovoltaic systems, the Shelly Pro 3EM is the perfect tool for accurately measuring electricity consumption and production in the most demanding environments.

The 400A 3-clamp 400A version is ideal for high power installations, providing a robust energy monitoring and analysis solution with full integration into smart home and industrial networks.

Main features

🔌 Ultra-precise three-phase monitoring
✔️ 4 quadrant measurement: active, reactive and apparent energy
✔️ Accuracy up to 1% (class B - IEC 62053-21)
✔️ Monitoring on 3 phases or 3 separate single-phase circuits
✔️ Supports consumption and production (ideal for prosumers)

🌐 F ull and secure connectivity
✔️ LAN, Wi-Fi 2.4GHz, Bluetooth
✔️ Support for MQTT, HTTP/HTTPS, WebSockets, MODBUS TCP
✔️ Support mTLS, TLS and customised certificates
✔️ No cloud required - works locally, secure and fast

🧠 Advanced automation with scripting
✔️ Webhooks and smart rules based on measured values
✔️ Integrated contactor control for automatic circuit shutdown
✔️ mjS scripting for customised scenarios (EV charging, cooling, etc.)

📊 Local storage and analysis
✔️ Full consumption history stored on device up to 60 days with 1 minute resolution
✔️ Instant reporting every 100ms for critical applications
✔️ Phase sequence error detection + optical pulse

Ready for PV and wind systems
✔️ Measures energy produced and consumed separately
✔️ Allows energy flow optimisation between solar panels and consumers
✔️ Ideal for prosumers and surplus energy management

📦 Package includes:

• 1x Shelly Pro 3EM

• 3x Current clamps 400A

• DIN rail mounting bracket

🔧 Recommended applications:
🏠 Smart Homes | 🏢 Commercial Buildings | ⚙️ Industrial Halls | 🌱 Photovoltaic Systems | 🔌 EV Charging Smart Control

💡 With the Shelly Pro 3EM (3x 400A), take energy automation and monitoring to the next level - reliable, accurate and fully controllable from the Shelly Smart Control app or your favourite platforms. Ideal for any installation where every kilowatt counts!