Shelly Pro 3EM Switch Add-on

The Shelly Pro 3EM Switch Add-on is a galvanically isolated switch designed to extend the capabilities of the Shelly Pro 3EM series. It enables direct control of contactors or other electrical appliances, making it ideal for load shedding, energy management, and automation in residential, commercial, and industrial settings. The add-on is DIN-rail mountable and features dry contacts for safe and flexible integration.

By connecting the Shelly Pro 3EM Switch Add-on to your appliances, you can automate actions based on real-time energy data from your PV system or grid. This allows you to optimize energy usage, automatically activate or deactivate loads, and reduce dependency on the grid. The device is powered directly from the Shelly Pro 3EM and communicates via a proprietary serial interface, ensuring reliable operation and seamless integration with the Shelly ecosystem.