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

The Shelly 3EM-63W 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. With its compact design and connection via flexible wires, it can be easily integrated into existing electrical installations. Thanks to its WiFi and Bluetooth connectivity, no additional control center is required – the Shelly 3EM-63W can be directly integrated into smart home systems. Integrated TLS encrypted communication via MQTT, HTTP, and WebSocket ensures secure data transmission. Using the free Shelly app or a web interface, the collected data can be viewed and analyzed at any time. The meter stores measurement data for up to 7 days, allowing you to track consumption even without a permanent internet connection. Additionally, the Shelly 3EM-63W is photovoltaic capable and can be used to monitor solar systems. The flexible wiring connection makes installation particularly versatile and adaptable, ideal for installations where direct mounting on a circuit breaker is not possible.

Features:

• Easy installation with wire connection: Flexible cables enable quick and uncomplicated integration into existing electrical installations.
• Precise 4-quadrant measurement: Captures voltage, current, active power, apparent power, and power factor per phase.
• Versatile application: Monitors both three-phase networks and three individual circuits.
• Photovoltaic capable: 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: Operates via WiFi and Bluetooth and integrates seamlessly into smart homes.
• Automatable processes: Thanks to MQTT, HTTP, and WebSocket, consumption analyses and controls can be flexibly automated.
• Protection functions & error detection: Detects phase sequence errors, idle consumption, and internal temperature deviations.
• Secure data transmission: TLS encrypted communication ensures high security.

Application examples:

• Flexible installation with wires – ideal for electrical installations where direct screw mounting on a circuit breaker is not possible.
• Monitor household energy consumption – optimize your consumption and identify power-hungry devices.
• Efficient use of solar systems – measure both generated and consumed energy.
• Cost reduction for businesses – measure power consumption of individual machines or departments.
• Troubleshooting and maintenance – detect unexpected load peaks or voltage fluctuations early on.

Documentation:

• Shelly Knowledge Base
• Shelly Forum Deutsch

Technical Data:

• Manufacturer: Allterco
• Manufacturer SKU: Shelly_3EM_63W_Gen3
• Physical characteristics:
  • Cable length: 260 mm (including flat plug)
  • Cable entry: Ø8 mm
  • Mounting: Directly on or under a DIN rail circuit breaker
  • 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 and reactive energy
  • Idle threshold: 30 VA
• Storage & Data Export:
  • Measurement data storage: 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 transmission 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 transmission power: < 4 dBm
  • Range: Up to 10 m indoors and up to 30 m outdoors (depending on local conditions)
• Microcontroller & Firmware Features:
  • Processor: ESP-Shelly-C38F
  • Flash memory: 8 MB
• Firmware Features
  • Schedules: 20 configurable entries
  • Webhooks (URL actions): 20 each with up to 5 URLs
  • Scripting: Yes
  • MQTT support: Yes
• Dimensions (H x W x D): 21 x 54 x 42 mm
• Weight: 98g

Scope of delivery:

• 1x Shelly 3EM-63W Gen3 three-phase WiFi energy meter