Shelly PRO 3EM 400A 2-Phase Energy Meter, WiFi/Bluetooth

2-Channel Shelly PRO 3EM 400A WiFi Electrical Energy Consumption Meter

Shelly Pro 3EM 400A is a professional, three-phase electrical energy consumption meter that can be installed on a DIN rail. The device reports accumulated energy with 1% accuracy and real-time voltage, current, and power for each phase. It stores data for the last 60 days with a one-minute resolution for each phase, enabling precise analysis. Furthermore, it offers advanced scripting capabilities and extended monitoring options.

 

 

Manufacturer
Shelly

Model
SPEM-003CEBEU400

AC Power Supply Voltage
110 - 240 V, 50/60 Hz

Power Consumption
< 3 W

Internal Temperature Sensor
Yes

Voltemeters (RMS for Each Phase)
100 - 260 V

Voltemeter Accuracy
±1%

Amperemeters (RMS via CT for Each Phase and Neutral)
0 - 400 A

Compatible Current Transformer (CT) Ratings
CT-400A

Amperemeter Accuracy
±1% (5 - 400 A), ±2% (0 - 5 A)

Power and Energy Meters
Active and apparent power, active and apparent energy, power factor, basic active energy, and basic reactive energy

Channel-to-Channel Calibration at Minimum Load
5000 W per channel

No-Load Threshold
30 VA per channel

Measurement Data Storage
At least 60 days with 1-minute data resolution

Data Export
CSV format for stored PQ values, JSON export via RPC

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

Ambient Temperature
-20°C to +40°C

Humidity
30% to 70% RH

Maximum Altitude
2000 m

Dimensions
94 x 19 x 69 ±0.5 mm

Weight
62 ±1 g

Mounting
DIN rail

Housing Material
Plastic