Shelly Pro 3EM Switch Add-On

Take your Shelly Pro 3EM energy meter to the next level. With this professional add-on, you'll not only measure consumption, but also automatically control contactors and large loads . The ultimate solution for smart energy management and real savings on your bill.

Turn your meter into a smart controller with the Shelly Pro 3EM Switch Add-On

Already have the incredible accuracy of the Shelly Pro 3EM three-phase meter? Now you can give it the power to act. The Shelly Pro 3EM Switch Add-on attaches directly to your meter and adds a relay output, allowing you to create advanced automations based on real-time energy consumption.

Automate Large Loads and Save Energy

This module is the missing piece you need for complete energy control. Use it to activate a contactor and manage the highest-consumption devices in your home or business.

• Overconsumption Protection: Automatically shuts off a circuit if consumption exceeds a threshold to prevent surprises on the bill or tripping of the main circuit breaker.
• Solar Panel Management: Divert surplus solar production to heat water or charge your electric vehicle.
• Climate Control (HVAC): Manages high-power air conditioning or heating systems.

Maximum Flexibility with Potential-Free Contacts

The relay features dry (potential-free) contacts , providing unparalleled versatility. You can safely control alternating current (AC) or direct current (DC) circuits, regardless of the Shelly's own power supply, opening up a world of possibilities for your automation projects.