Shelly Pro 3 DIN Rail Three-Channel Dry-Contact Relay

Shelly Pro 3 is a DIN-rail three-channel smart relay with potential-free contacts for independently switching separate circuits. Shelly documents control of three independent circuits, including three-phase applications, with LAN, Wi-Fi and Bluetooth connectivity. Each channel is rated for up to 16 A, with a 48 A total switching current stated by the manufacturer. The dry-contact outputs can suit a wider range of circuit voltages than a switched-live relay, within the published limits. An embedded web interface, schedules, webhooks and scripting support enable local or remote automation. This model is intended for switching and does not provide integrated power metering. Confirm the circuit arrangement, load type, protection and contact ratings before installation. Have a qualified electrician install mains-connected equipment.