Shelly Pro 3EM 120A — Three-Phase Energy Meter WiFi + Ethernet

Shelly Pro 3EM 120A — Professional Three-Phase Energy Meter with WiFi and Ethernet

The Shelly Pro 3EM 120A (model SPEM-003CEBEU120) is a DIN rail mount three-phase energy meter with 3 included 120A current clamps. It monitors three-phase power consumption in real-time with Class B accuracy and stores up to 60 days of data. It includes WiFi, Ethernet, and Bluetooth BLE 4.2 connectivity. Gen2 Pro generation. No hub or subscriptions needed.

Technical Specifications — Shelly Pro 3EM 120A

• Model: SPEM-003CEBEU120
• Connectivity: WiFi 802.11 b/g/n (2.4 GHz) + Ethernet (RJ45) + Bluetooth BLE 4.2
• Power Supply: 110 – 240V AC, 50/60 Hz (three-phase)
• Current Clamps: 3 × 120A (included)
• Accuracy: Class B
• Data Storage: 60 days in internal memory
• Mounting: DIN Rail
• Operating Temperature: -20 to +40°C
• Certifications: CE, RoHS
• Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, Scripting (mJS)

Main Features

• Complete three-phase measurement: active, reactive, and apparent power per phase
• 120A clamps included: installation without power interruption
• Certified Class B accuracy for auditing and energy cost control
• 60 days of local data storage without cloud dependency
• Dual connectivity WiFi + Ethernet for maximum availability
• Compatible with the Pro 3EM Switch Add-On module for load control

Compatible with

• Home Assistant (local, no cloud)
• Amazon Alexa
• Google Home
• MQTT, HTTP REST API, Scripting mJS

Use Cases

• Monitoring of three-phase electricity consumption in homes and businesses
• Energy auditing in industrial and commercial facilities
• Management of photovoltaic installations with production and consumption measurement
• Energy cost control in hotels, offices, and residential communities

Official Shelly distribution. Shipping from Spain. Official Shelly warranty.