Shelly DIN rail energy meter, 3-phase (Pro 3EM-3CT63 -Pro-3EM-CT63) (Shelly-Pro-3EM-CT63)

The Shelly Pro 3EM-3CT63 is a next-generation three-phase energy meter specifically designed for accurate energy monitoring in residential, industrial, and commercial buildings. This DIN-rail mounted meter provides real-time information on voltage, current, active, and apparent power for each phase. The built-in four-quadrant metering feature allows for the measurement of both capacitive and inductive loads, making the device the perfect solution for modern energy monitoring needs.

Smart features for simple energy consumption optimization
The Shelly Pro 3EM stores consumption data for up to 60 days and provides the ability to analyze data directly in a mobile app or via a web connection. The device's integrated real-time clock ensures correct timestamps even without an internet connection. In addition, the device supports Modbus, MQTT, HTTP, and WebSocket protocols, making it an ideal fit for industrial and smart home systems. Combined with the Shelly Pro 3EM Switch Add-on, you can manage loads using automation or scripts.

From solar power to electric vehicle charging
The Shelly Pro 3EM-3CT63 is ideal for managing renewable energy. It allows you to monitor the energy produced by solar panels and its consumption at different stages. It is also perfect for monitoring electric vehicle charging, providing a real-time view of energy consumption and helping to optimize the charging process. The device's easy installation and space-saving design make it an excellent choice for both new installations and upgrades to existing electrical systems.

Shelly's smart home products support Amazon Alexa and Google Assistant virtual assistants. In addition to the above, several other smart home systems/platforms are also supported (check product specific for compatibility). Shelly's products connect to a wireless Wi-Fi network and do not require a separate home automation controller to function.

Note, installation should only be performed by an authorized electrician.

Features:

• Four quadrant metering:Measures active and reactive energy for all types of loads.
• DIN rail mount:Easy installation in electrical cabinets.
• Flexible connection options:For three-phase and single-phase installations.
• Transformer interface: Non-contact measurements for maximum safety.
• Real-time clock function: Ensure accurate timestamps even without internet access.
• Datalogging: Stores data for up to 60 days.
• Modbus TCP and MQTT support: Suitable for industrial and commercial applications.
• Output capability: Measures output and consumption at different stages.
• Accuracy class B (IEC 62053-21): Maximum deviation of 1%.
• Safety features: Built-in temperature control.

Specifications:

Physical characteristics

• Dimensions: 94 x 19 x 69 mm (meter), 14 x 54 x 26 mm (3CT63 current transformer)
• Weight: 62 g (meter), 32 g (current transformer)
• Mounting method: DIN rail mounting
• Casing: Plastic
• Color: White

Operating environment

• Operating temperature: -20 °C ... +40 °C
• Humidity: 30 % - 70 % RH
• Max. altitude: 2000 m

Electrical characteristics

• Supply voltage: 100 - 260 V AC, 50/60 Hz
• Power consumption: < 3 W
• Transformer capacity: Max. 63 A

Measuring functions

• Voltage range: 100 - 260 V AC
• Voltage measurement accuracy: ±1%
• Current range: 0 - 63 A
• Current measurement accuracy:
  • ±1 % (2 - 63 A)
  • ±2 % (1 - 2 A)
  • ±5 % (0 - 1 A)
• Energy data: Recorded at 1 minute resolution for a minimum of 60 days

Connections and Protocols

• Wi-Fi: 802.11 b/g/n, max. 20 dBm, 30-50 m range
• Bluetooth: Version 4.2, max. 4 dBm, range 10 - 30 m
• Ethernet port: 1 x RJ45
• Protocols: Modbus TCP, MQTT, HTTP, WebSocket, RPC

Security

• Internal temperature sensor: Yes
• Overheat protection: Yes

Memory and performance

• Cpu: ESP32-D0WDQ6
• Flash memory: 16 MB