Shelly Pro 3 Smart DIN Rail Switch

The Shelly Pro 3 sets an advanced industry benchmark for professional automation in heavy-duty commercial, industrial, and high-end residential applications. Engineered specifically for seamless integration inside standard breaker boxes, its physical form factor mounts directly onto a DIN rail. The key technical milestone of the Pro series is its physical LAN (Ethernet) connection capability. This wiring architecture eliminates potential wireless dropouts and signal interference, ensuring sub-millisecond command execution and long-term uptime for high-priority grids.

Featuring 3 fully independent output channels with potential-free dry contacts, the Shelly Pro 3 delivers supreme operational flexibility. It empowers system integrators to switch completely separate electrical circuits running at different voltages within a single hardware block, or to bind the lines together for safe triphasic load control when paired with external contactors. It serves as an ultimate driving solution for complex commercial HVAC infrastructures, high-capacity water pump systems, industrial motorized gates, and expansive architectural lighting arrays.

Constructed inside a flame-retardant shell, the module continuously screens internal telemetry to immediately trip connected loads if dangerous thermal thresholds are exceeded. Out of the box, the Shelly Pro 3 supports customized JavaScript micro-scripting alongside native MQTT protocols and local Webhooks, providing flawless interoperability with Home Assistant, Amazon Alexa, and Google Home for mission-critical deployments.