Shelly PRO 3EM 120A 3-Phase Electricity Meter with WiFi/Bluetooth/Matter
The 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
Actuators
InnPro
Sensors
Shelly
Smart Home
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