Shelly Pro EM - 50A (with 2 50A CT)

Shelly PRO EM-50

1-Phase Energy Meter with an integrated switch for contactor control. Control and monitor the consumption of any home appliances, electric circuits and office equipment.

Key Features

• LAN, Wi-Fi, and Bluetooth connection for high security and reliability
• Reports accumulated energy, as well as instantaneous voltage, current, active and apparent power per phase in real time
• Power metering - two independent measurement channels on the same phase
• 4 Quadrant measurement with optical pulse indication of energy usage
• Can be used with contactors for bigger loads
• Accuracy Class B (IEC 62053-21)
• Photovoltaic ready
• Stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals.
• No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant, or your preferred automation system.
• Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates & Modbus TCP protocol

Your Smart Solution for Accurate Energy Monitoring and Control

Shelly Pro EM-50 is a DIN-mountable 1-Phase Energy Meter with an integrated switch for contactor control. With active energy measurement accuracy of 1%, Shelly Pro EM-50 can be used to monitor the consumption of and control any home appliances, electric circuits, and office equipment. It features 60 days of on-device historical data with a 1-minute resolution. Additionally, its scripting functionalities allow for the execution of complex scenes and provide broader monitoring abilities.

• Wi-Fi, LAN and Bluetooth connectivity: Simultaneous Ethernet and Wi-Fi usage. MQTT, inbound and outbound WebSocket, UDP, mTLS support.
• Accuracy class B (active energy): Shelly Pro EM-50 has a measurement accuracy of 1%. This refers to the IEC 62053-21 standard for static meters for AC active energy, with Class B being a common and highly accurate class for residential and some commercial applications.
• MODBUS support: Allows for easy and fast deployment in existing industrial installations.
• Power measurement: Monitors two independent channels on the same phase.
• Integrated switch: 2 A dry contacts switch for contactor control.
• Scripting: Shelly Pro EM-50 fully supports mjS scripting, allowing you to create further features and functionalities.
• Photovoltaic ready: This means the meter is designed to work with solar PV systems, allowing you to monitor both energy consumption from the grid and energy generated by your solar panels, often supporting net metering for potential credits.

Shelly Smart Control is Free!

Download our free app to manage spaces, monitor energy, and track expenses. Upgrade to Premium for even more features!