Shelly 3EM-63T Gen3 Three-Phase WiFi Energy Meter

The Shelly 3EM-63T Gen3 is an intelligent three-phase energy meter that accurately measures power consumption in real-time. It can monitor both three-phase systems and three individual single-phase circuits. Thanks to its compact design, it is specially designed for easy and quick installation directly on a circuit breaker - without extensive wiring. With its WiFi and Bluetooth connectivity, it can be integrated into smart home systems without an additional gateway and offers versatile options for automation and remote monitoring. Its integrated data storage allows the storage and retrieval of energy consumption values for up to 7 days in 1-minute intervals. The Shelly 3EM-63T is photovoltaic-compatible, making it ideal for monitoring solar installations. Whether for households, businesses, or industrial applications, this smart energy meter offers a reliable, space-saving, and uncomplicated solution for energy monitoring.

Features:

• Easy installation on a circuit breaker: No complicated wiring required - the Shelly 3EM-63T is mounted directly on or under a DIN rail circuit protector.
• Precise 4-quadrant measurement: Records voltage, current, active power, apparent power, and power factor per phase.
• Versatile use: Monitors both three-phase networks and three individual circuits.
• Photovoltaic-compatible: Perfect for measuring solar power generation and consumption.
• Monitor energy consumption in real-time: Stores consumption data for up to 7 days with 1-minute intervals.
• No additional gateway required: Works via WiFi and Bluetooth and seamlessly integrates into the smart home.
• Automatable processes: Thanks to MQTT, HTTP, and WebSocket, consumption analyses and controls can be flexibly automated.
• Protective functions & error detection: Detects phase sequence errors, idle consumption, and internal temperature deviations.
• Secure data transmission: TLS-encrypted communication ensures high security.

Application examples:

• Quick installation on circuit breakers - ideal for electricians and homeowners who want uncomplicated energy measurement.
• Monitor household energy consumption - optimize your consumption and identify energy guzzlers.
• Efficiently use solar systems - capture both generated and consumed energy.
• Cost reduction for businesses - measure the power consumption of individual machines or departments.
• Troubleshooting and maintenance - detect unexpected load peaks or voltage fluctuations early.

Documentation:

Shelly Knowledge Base

Shelly Forum Deutsch

Technical Data:

• Manufacturer: Allterco
• Manufacturer SKU: Shelly_3EM-63T_Gen3
• Physical properties:
  • Cable length: 260 mm (including flat plug)
  • Cable entry: Ø8 mm
  • Installation: Directly on or under a DIN rail circuit protector
  • Housing material: Plastic
  • Housing color: White
• Environmental conditions:
  • Operating temperature: -20 °C to 40 °C
  • Humidity: 30% to 70% relative humidity
  • Maximum altitude: 2000 m above sea level
• Electrical specifications:
  • Power supply: 220-240 V~, 50/60 Hz (between LA and N)
  • Power consumption: < 2 W
• Sensors & measurements:
  • Integrated temperature sensor: Yes
  • Voltage measurement (RMS per phase): 220-240 V~, 50/60 Hz
  • Voltage measurement accuracy: Better than ±1%
  • Current measurement (RMS via integrated current transformers per phase): 0 - 63 A (130 A saturation)
• Current measurement accuracy:
  • ±1% (at 2 - 63 A)
  • ±2% (at 1 - 2 A)
  • ±5% (at 0 - 1 A)
• Power and energy measurement:
  • Active power and apparent power
  • Active energy and apparent energy
  • Power factor
  • Basic active energy and reactive energy
  • Idle threshold: 30 VA
• Storage & data export:
  • Storage of measurement data: At least 7 days with 1-minute intervals
  • Data export CSV for PQ recorded values
  • Data export JSON format for RPC export
• WiFi:
  • Protocol: 802.11 b/g/n
  • Frequency band: 2401 - 2483 MHz
  • Maximum transmit power: < 20 dBm
  • Range: Up to 30 m indoors and up to 50 m outdoors (depending on local conditions)
• Bluetooth:
  • Protocol: 4.2
  • Frequency band: 2400 - 2483.5 MHz
  • Maximum transmit power: < 4 dBm
  • Range: Up to 10 m indoors and up to 30 m outdoors (depending on local conditions)
• Microcontroller & firmware functions:
  • Processor: ESP-Shelly-C38F
  • Flash memory: 8 MB
• Firmware features
  • Schedules: 20 configurable entries
  • Webhooks (URL actions): 20 with up to 5 URLs each
  • Scripting: Yes
  • MQTT support: Yes
• Dimensions (H x W x D): 31 x 54 x 42 mm
• Weight: 92g

Package contents:

• 1x Shelly 3EM-63T Gen3 Three-phase WiFi Energy Meter