Shelly Pro 3

Shelly PRO 3EM 120A 3-Phase Electricity Meter with WiFi/Bluetooth/MatterThe Shelly Pro 3EM 120A is a professional, three-phase electricity meter designed for DIN-rail mounting. The device reports accumulated energy with 1% accuracy, as well as instantaneous voltage, current, and power for each phase in real time. It stores data from the last 60 days at one-minute intervals for each phase, enabling detailed analysis. It can operate standalone on a local LAN and/or Wi-Fi network, or be managed via a home automation cloud service using MQTT, HTTP, and WebSocket protocols. Furthermore, thanks to its scripting feature, it allows for the creation of advanced scenarios and offers extended monitoring options. The device is also compatible with the Matter standard, making it even easier to integrate into selected smart home systems. Manufacturer Shelly Model PRO 3EM Matter AC Power Supply 100 - 260 V, 50/60 Hz Power Consumption < 3 W Internal Temperature Sensor Yes Voltmeters (RMS for each phase) 100 - 260 V Voltmeter accuracy ±1% Ammeters (RMS via current transformers for each phase and neutral) 0 - 120 A Compatible current transformer (CT) CT 120A Ammeter accuracy ±1% (2 - 120 A), ±2% (1 - 2 A), ±5% (0 - 1 A) Active and apparent energy and power meters Active and apparent power, active and apparent energy, power factor, active energy, and basic reactive energy Channel-to-channel calibration at minimum load 500 W per channel No-load threshold 30 VA per channel Measurement data storage: At least 60 days with 1-minute data resolution Wi-Fi protocol 802.11 b/g/n Wi-Fi range Up to 30 m indoors and 50 m outdoors Bluetooth protocol 4.2 Bluetooth range Up to 10 m indoors and 30 m outdoors CPU ESP32-D0WDQ6 Flash memory 16 MB Dimensions 94 x 19 x 69 ±0.5 mm Weight 62 ±1 g Mounting DIN rail Housing material Plastic Ambient temperature -20°C to +40°C Humidity 30% to 70% RH Maximum altitude 2000 m Matter compatibility Yes