Shelly Pro 3EM-3CT63

Shelly Pro 3EM-3CT63 — Three-Phase Meter with WiFi, Ethernet and 3 x 63A CTs

The Shelly Pro 3EM-3CT63 (model SPEM-003CEBEU63) is a professional three-phase energy meter with Gen2 firmware and DIN rail mounting. It includes 3 x 63A current transformers for installation without direct contact with the cable.

Key Specifications

• Model: SPEM-003CEBEU63
• 3 three-phase measurement channels (3x63A with included CTs)
• Accuracy Class B (IEC 62053-21), 4-quadrant measurement
• Storage: 60 days at 1-minute resolution
• WiFi 802.11 b/g/n + Ethernet RJ45 + BLE 4.2
• Power Supply: 110–240V AC, 50/60 Hz

Use Cases in Spain

• Three-phase monitoring in condominiums and residential buildings
• Consumption control in commercial premises and offices
• Phase-by-phase photovoltaic production monitoring
• DIY home automation projects with Home Assistant and MQTT

Integrations

Compatible with Home Assistant (local), Amazon Alexa, Google Home, MQTT, HTTP REST API, mJS scripting, and Modbus TCP. No hub or subscriptions required.

• RF Band: 2400 – 2495 MHz
• Max RF Power: <20 dBm
• Wi-Fi Protocol: 802.11 b/g/n
• Wi-Fi Range: Up to 30m indoors / 50m outdoors
• Ethernet: RJ45 Port (LAN)
• Bluetooth Protocol: BLE 4.2
• Bluetooth Range: Up to 10m indoors / 30m outdoors

Official Resources

• Shelly Knowledge Base — Shelly Pro 3EM-3CT63
• Web Interface Guide

APIs and Protocols

• This device
• All Shelly devices and services