Smart meter Shelly Pro EM, 2x clamps 50A

Shelly Pro EM-50 is a two-channel single-phase energy meter, mounted on a DIN rail, designed for precise measurement of consumption on two separate circuits on the same phase. It comes equipped with two 50 A CT current clamps and a built-in relay for controlling a contactor.

It provides real-time data on voltage, current, active and apparent power for each channel, with 1% measurement accuracy, plus 60 days of local history at one-minute resolution. Connectivity combines WiFi, wired LAN and Bluetooth, and the device supports MQTT, WebSocket and scripting for complex automations.

It is useful for separately monitoring two circuits in a home or commercial space, for energy management of a photovoltaic system together with household consumption, or for automatically disconnecting a contactor when a set consumption threshold is exceeded.

Practical use cases

• Mounted on the main electrical panel, it gives a real-time picture of the total consumption of the home, helping to identify the appliances that use the most energy.
• Used to monitor a dedicated circuit (air conditioning, heat pump, electric car charger), it lets you track the monthly costs of each individual load.
• Useful in systems with their own energy production (photovoltaic panels), to compare the energy produced with the energy consumed and optimise the use of large appliances during peak production hours.
• Sends alerts in the app in case of abnormal consumption, helping to quickly detect faulty equipment.

Technical specifications

Shelly Pro EM-50 offers professional-grade precision energy monitoring on two independent circuits, with local control and full integration into energy management systems.