Shelly PRO 3EM 120A WiFi Dual-Channel Electric Energy Meter

The Shelly Pro 3EM 120A is a professional three-phase electric energy meter that can be installed on a DIN rail. The device reports accumulated energy with 1% accuracy as well as real-time voltage, current, and power for each phase. It stores data for the last 60 days with a resolution of one minute for each phase, enabling precise analysis. It can operate independently on a local LAN and/or Wi-Fi network or be controlled via a home automation cloud service using MQTT, HTTP, and WebSocket protocols. Furthermore, it offers advanced scripting capabilities and extended monitoring options.

ManufacturerShellyModelSPEM-003CEBEU120AC Power Supply Voltage100 - 260 V, 50/60 HzPower Consumption< 3 WInternal Temperature SensorYesVoltmeters (RMS for each phase)100 - 260 VVoltmeter Accuracy±1%Ampermeters (RMS via current transformers for each phase and Neutral)0 - 120 ACompatible Current Transformer (CT)CT 120AAmpermeter Accuracy±1% (2 - 120 A), ±2% (1 - 2 A), ±5% (0 - 1 A)Active and Apparent Power and Energy MetersActive and apparent power, active and apparent energy, power factor, active fundamental energy, and reactive fundamental energyChannel Calibration at Minimum Load500 W per channelNo-Load Threshold30 VA per channelMeasurement Data StorageAt least 60 days with 1-minute data resolutionWi-Fi Protocol802.11 b/g/nWi-Fi RangeUp to 30 m indoors and 50 m outdoorsBluetooth Protocol4.2Bluetooth RangeUp to 10 m indoors and 30 m outdoorsCPUESP32-D0WDQ6Flash Memory16 MBDimensions94 x 19 x 69 ±0.5 mmWeight62 ±1 gMountingDIN railHousing MaterialPlasticAmbient Temperature-20°C to +40°CHumidity30% to 70% RHMaximum Altitude2000 m