Shelly Pro 3EM-400

CHARACTERISTICS:

● Mountable on DIN rail;
● Performs three-phase measurements;
● Includes 3 current transformers;
● Measurement error less than 1% at 2-120A;
● Measures consumed and generated energy;
● Distinguishes between capacitive, inductive, and resistive loads;
● Informs about incorrect installations (phase sequence);
● Supports Modbus TCP;
● Persistent data storage with 1-minute resolution;
● Stores at least 60 days of data in the history;
● Can be used for both single-phase and three-phase installations;
● Can control other Shelly devices locally or through the cloud;
● Allows for the use of home and SMB scenarios.
● Excellent solution for homes with energy production, EV charging with power management, consumption based on energy price, decentralized decision-making and control of production and storage, etc.

SPECIFICATIONS
◾ ELECTRICAL
- AC Power Supply Voltage: 110 - 240 V, 50/60 Hz
- DC Power Supply Voltage: N/A
- Power Consumption: < 3 W
◾ SENSORS and METERS:
- Temperature Sensor: Yes
- Voltmeters (RMS for each phase): 100 - 260 V
- Voltmeter Accuracy: ±1% error
- Ammeters (RMS via CT for each phase and Neutral): 0-400A
- Ammeter Accuracy: ±1% (5-400A), ±2% (0-5A)
- Power and Energy Meters:
· Active and Apparent Power
· Active and Apparent Energy
· Power Factor
· Active and Reactive Fundamental Energy (ignoring harmonics)
- Measurement Data Storage: At least 60 days with 1-minute data resolution
- Data Export:
· CSV for recorded PQ values
· JSON export via RPC format
◾ WIRELESS:
- Wi-Fi Protocol: 802.11 b/g/n
- RF Band: 2401 - 2495 MHz
- Max RF Signal Power: <20 dBm
- Wi-Fi Range: Up to 30m indoors and 50m line of sight
- Bluetooth Protocol: 4.2
- Bluetooth Range: Up to 10m indoors and 30m line of sight
◾ MCU and FIRMWARE
- CPU: ESP32-D0WDQ6
- Flash: 16 MB
- Webhooks (URL actions): 20 with 5 URLs per hook
- Scripting: mJS
- MQTT: Yes
- CoAP: No
◾ GENERAL:
- Mounting: DIN rail
- Maximum screw terminal torque: 0.4 Nm
- Conductor Cross-Section: 0.5 to 2.5 mm²
- Outer Material: Plastic
- Color: White
- Weight: 62g
- Size: 94x19x69 mm
◾ ENVIRONMENTAL
- Operating Temperature: -20°C to 40°C
- Humidity: 30% to 70% RH
- Maximum Altitude: 2000 m / 6562 ft