Shelly i3
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What is Shelly i3?
The Most Intelligent Device
Shelly i3 has no relays but is small enough to be installed virtually anywhere. It monitors the status of 3 inputs and can be placed within a standard switch. It can control other connected Shelly devices—such as relays, sensors, or any HTTP, MQTT, or CoAP-enabled devices—through discrete commands on your home network or via cloud-based scenes. The possibilities are endless.
Features
- No HUB required
- Wide voltage range support (110–230V AC, 24–60V DC)
- Multi-click support – up to 24 possible actions
- 3 AC input channels
- Designed to fit in most standard electrical boxes and switches
- Fully compatible with all other Shelly devices
- Supports Android, iOS, Amazon Alexa, and home automation platforms via MQTT, CoAP, and REST API
- Easily integrate with Arduino projects for smart home automation
Specification
POWER
- AC Power Supply: 110–230V ±10%, 50/60Hz
- DC Power Supply: 24–60V
SPECIAL FUNCTIONS
- Complex scenes control: Synchronize actions across multiple Shelly devices
- Overload protection: No
- Power measurement: No
- Working without a neutral line: No
FEATURES
- Channels: 3
- Operating Temperature: 0 to +40 °C
- Device Power Consumption: < 1 W
- Intelligent On/Off: No
- Sunrise/Sunset: No
- Weekly Schedule: No
- UL Listed Option: No
CONNECTIVITY
- Wireless/WiFi Protocol: IEEE 802.11 b/g/n
- Radio Frequency: 2400 – 2500 MHz
- Range: Up to 50 m outdoors, up to 30 m indoors (varies by building materials)
DIMENSIONS
- Size: 40 mm × 36 mm × 10 mm
Wiring Diagrams
