?unique=1abb307)
Shelly 3EM-63 Gen3
🔧 Key Features
- Three-phase monitoring: Measures consumption across a 3-phase system or 3 separate single-phase circuits.
- Real-time data: Reports voltage, current, active power, apparent power, and accumulated energy per phase.
- Connectivity:
Wi-Fi for remote monitoring and automation.
Bluetooth for easy setup and pairing.
- Data storage: Internal non-volatile memory stores up to 7 days of minute-resolution logs.
- Clock & sync: Built-in real-time clock maintains accurate time even without SNTP server connection.
- Integration: Works with Shelly Cloud, MQTT, HTTP, WebSocket, and supports TLS for secure inbound connections.
- Standalone or cloud: Operates independently on local Wi-Fi or via cloud services.
- Compact design: Fits into standard electrical panels for retrofit installations.
🔍 Smart hint
- Solar & grid monitoring: Ideal for tracking both solar production and household consumption simultaneously.
- Circuit-level insights: Use it to monitor three separate circuits (e.g., HVAC, lighting, appliances) for efficiency.
- Automation triggers: Combine with Shelly relays to automatically disconnect loads if consumption exceeds thresholds.
- Energy audits: Export stored logs for analysis to optimize energy usage and reduce costs.
- Secure integration: Use TLS-enabled connections for safe integration with automation platforms.
⚠️ Warnings
CT clamps required: Device cannot measure consumption without compatible 63A current transformers.
Electrical safety: Installation should be performed by a qualified electrician due to high-voltage wiring.
Load compatibility: Ensure CT clamps are correctly rated; using mismatched clamps may cause inaccurate readings.
Wi-Fi dependency: Remote monitoring requires stable Wi-Fi; without it, only local logging works.
Indoor use: Not waterproof — must be installed in a protected enclosure if used outdoors.
📦 What’s Included
- Shelly 3EM Gen3 63A device
- Quick start guide / instructions
Note: Current transformers (CT clamps rated for 63A) are typically sold separately.