Description

Shelly Pro 3EM is a three-phase energy meter for the DIN rail in home and small-business switchboards, built to track consumption and solar export. Three clamp-on 120 A current transformers come in the box, a neutral clamp is an optional accessory, and active-energy accuracy is 1% (Class B). Four-quadrant measurement records both imported and exported energy, and readings are stored on the device at 1-minute intervals for at least 45 days. Connectivity covers Wi-Fi 802.11 b/g/n, a LAN (RJ45) port and Bluetooth 4.2, and you manage it from the local web interface or the Shelly Smart Control app. MQTT, HTTP, WebSocket and Modbus TCP are supported, supply is 100–260 V AC, the housing is just 19 mm wide, and Pro devices carry a 5-year warranty. In practice it is a natural fit for dynamic load balancing: Teltonika Energy lists it as a supported network meter for its EVC2 charging stations.

Technical specifications

Current

120 A