About this product

Shelly 3EM-63 Gen3 (The Device) is a compact energy meter designed to monitor either a three-phase system or three independent single-phase circuits. It can work standalone in a local Wi-Fi network, or it can also be operated through cloud home automation services through MQTT, HTTP, and WebSocket. All inbound connections support TLS.

The Device reports accumulated energy as well as instantaneous voltage, current, active, and apparent power per phase in real time. It stores the data in non-volatile memory that can be retrieved for a period of up to 7 days in 1-minute intervals.

The Device has a real-time clock to keep the correct time if the connection to an SNTP server is lost.

The Device can be accessed, set up, and monitored remotely by the User, as well as the Device can access and communicate with an automation system, as long as they are in the same network infrastructure.

The Device has an embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.

Key Features

• 4-quadrant measurement
• Multiple connection types: three phase or single phase installations
• Non-contact current measurements through current transformers
• Phase sequence error detection (option)
• No load threshold
• Optical pulse indication of energy usage
• Real-time clock: stored data keeps correct timestamps even if the internet connection is interrupted.
• Data logs: up to 7 days of data stored on the device for later retrieval
• Accuracy Class B (IEC 62053-21)
• Photovoltaic ready