The Shelly 1 Gen3 is a compact 16A WiFi smart relay with true dry contacts, designed for professional automation and retrofit projects. It allows you to control both low and high voltage circuits safely — without requiring a hub.
Powered by Shelly’s new C38F chip and equipped with 8MB memory, Gen3 delivers faster processing, enhanced scripting capabilities, and expanded protocol support including Matter, MQTT, WebSocket, HTTPS, and KNX IP.
Small enough to install behind a wall switch, inside a junction box, or in an electrical panel, it is ideal for garage doors, gates, lighting circuits, HVAC systems, irrigation systems, and contactor triggering applications.
Key Features
• 16A WiFi Smart Relay
• True Dry Contact (potential-free output)
• Matter Ready
• MQTT, WebSocket, HTTPS & KNX IP support
• 8MB Memory – Gen3 architecture
• Bluetooth for quick setup
• No hub required
• Supports low & high voltage circuits
• Compact design for retrofit installations
• Smart schedules & scenes
Common Applications
• Smart garage door or gate control
• Lighting automation (single or 3-way switches)
• HVAC & boiler control
• Irrigation systems
• Contactor triggering for larger loads
• Advanced automation with MQTT or Home Assistant
Technical Highlights
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Max switching current: 16A
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Dry contact isolation
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WiFi connectivity
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Bluetooth pairing
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Local automation support
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Behind-switch installation capable
