Shelly PRO 3EM-3CT63 Electricity consumption meter

Shelly Pro 3EM-3CT63 – a DIN-rail mountable three-phase energy meter equipped with a 3CT63 three-phase current transformer (63 A), featuring Wi-Fi, Ethernet, and Bluetooth connectivity and Gen2 firmware flexibility.

Features

• Measures voltage, current, active & apparent power per phase
• 4-quadrant measurement (import/export)
• Includes 3CT63 3-phase current transformer via MX3.0 connectors
• Optical LED pulse energy indication
• Real-time clock; 60-day local data log at 1-minute intervals
• Accuracy Class B (~1 %)
• Connectivity: Wi-Fi, Ethernet, Bluetooth; supports TLS, MQTT, Modbus, WebSocket, RPC
• User interface: tactile button (AP / reset), multi-LED for Power, Wi-Fi, LAN, Count
• Internal temperature sensor; <3 W power consumption

Primary Uses

• Comprehensive household or facility energy monitoring (import/export)
• PV system or EV charging energy tracking
• Automation triggers from energy data via MQTT/Modbus
• Integration in industrial or commercial energy systems

Compatibility

• Local Web UI and cloud-based control
• Supports Alexa, Google Home, SmartThings via ecosystem
• Hub-free operation

• Datasheet