Shelly Pro 3EM

The Shelly Pro 3EM is a professional-grade, DIN-rail mountable 3-phase energy meter designed for precise real-time monitoring of electricity consumption, solar production, and power quality. It is aimed at industrial, commercial, and residential applications requiring high accuracy and advanced automation

Key Lifestyle and Functional Benefits

• 3-Phase Energy Measurement: Monitors active/apparent power, energy consumption, voltage, current, and power factor for each phase in real-time.
• 4-Quadrant Measurement: Accurate tracking of inductive and capacitive load types for both imported (consumed) and exported (produced) energy.
• Accuracy Class B: Compliant with IEC 62053-21, offering ~1% measurement accuracy.
• Historical Data Storage: Retains data on the device for up to 60 days in 1-minute intervals.
• Photovoltaic Ready: Ideal for tracking solar or wind turbine generation, allowing for 2-way energy consumption monitoring. 
• Triple Connectivity: Simultaneously supports LAN (Ethernet), Wi-Fi, and Bluetooth, allowing for secure, flexible, and robust network setups.
• Protocols & API: Supports MQTT, HTTP, and WebSocket. It is compatible with major home automation platforms (Home Assistant, etc.) and offers an open API for custom integration.
• MODBUS Support: Allows for direct connection to industrial systems (PLC/SCADA).
• Scripting Capabilities: Supports mJS scripting, enabling custom automation, complex scenes, and local control without a cloud server.
• No Load Threshold: Detects if energy consumption drops below a certain level (30 VA per phase), preventing erroneous data accumulation.
• Security & Protection: Features industry-grade security, including TLS support for encrypted data, plus overvoltage and optional phase sequence error detection.