Shelly 1 Gen3 Wi-Fi Smart Relay Switch with Matter & Dry Contacts
The Shelly 1 Gen3 is a compact smart relay switch with potential-free (dry) contacts designed to retrofit into your existing electrical installations for seamless home automation. Control lighting, garage doors, appliances, and more remotely via smartphone, tablet, or voice assistants including Amazon Alexa, Google Assistant, and Samsung SmartThings. With Matter certification (available after firmware update), Wi-Fi connectivity, and Bluetooth 4.2, this versatile relay switch brings modern smart home control to any device without the need for a hub.
Why You'll Love the Shelly 1 Gen3
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Matter Certified: Future-proof smart home compatibility with the latest Matter protocol for seamless interoperability across platforms
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Potential-Free (Dry) Contacts: Ideal for low-voltage switching applications and contactor control, giving you flexibility for a wide range of installations
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Upgraded Performance: Powered by the new ESP-Shelly-C38F processor with 8MB flash memory for faster response and advanced automation
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No Hub Required: Connects directly to your Wi-Fi network (2.4 GHz 802.11 b/g/n) for standalone operation or cloud-based control
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Compact Design: Small form factor (37 × 42 × 16 mm) fits easily behind light switches, power sockets, and in standard electrical wall boxes
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3-Year Warranty: Enjoy peace of mind with Shelly's comprehensive warranty on all Gen3 devices
Smart Home Automation Made Simple
Control your electrical appliances from anywhere with internet connectivity via the Shelly Smart Control app. The Shelly 1 Gen3 works standalone in your local Wi-Fi network or integrates seamlessly with cloud home automation services. Set up complex schedules based on date, time of day, and weekdays, or use scripting and webhooks for advanced automation. The embedded web interface allows you to monitor, control, and fine-tune device settings without leaving your network.
Versatile Connectivity & Integration
The Shelly 1 Gen3 supports a wide range of connectivity options and protocols, making it perfect for DIY enthusiasts and professional installers alike:
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Wi-Fi: 2.4 GHz 802.11 b/g/n with up to 30m indoor and 50m outdoor range
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Bluetooth 4.2: Acts as a BLE gateway for Shelly BLU devices
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HTTP API, MQTT, WebSocket, HTTPS, UDP: Extensive integration with third-party platforms including Home Assistant
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Voice Control: Compatible with Amazon Alexa, Google Assistant, and Samsung SmartThings
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Wi-Fi Extender for IoT Devices: Boost your smart home network range
Reliable & Safe Operation
Built with robust overheating protection and designed for Australian and international electrical standards, the Shelly 1 Gen3 handles AC loads up to 16A at 240V AC and DC loads up to 10A at 30V DC. It operates reliably in temperatures ranging from -20°C to 40°C, making it suitable for a variety of indoor and outdoor installations.
Perfect for Automating
- Lighting control and smart switches
- Garage doors and gates
- Irrigation systems
- Pool pumps and outdoor equipment
- Fans, heaters, and air conditioners
- Older appliances and legacy devices
What's in the Box
- 1 × Shelly 1 Gen3 smart relay switch (S3SW-001X16EU)
- Multilingual printed user guide and safety guide
Full Specifications
| Model |
S3SW-001X16EU |
| Processor |
ESP-Shelly-C38F |
| Flash Memory |
8 MB |
| AC Supply Voltage |
110V to 240V |
| DC Supply Voltage |
12V / 24V to 48V |
| Maximum Switching Voltage (AC) |
240V |
| Maximum Switching Voltage (DC) |
30V |
| Maximum AC Load |
16A |
| Maximum DC Load |
10A |
| Number of Channels |
1 |
| Power Consumption |
< 1.2W |
| Wi-Fi |
2.4 GHz 802.11 b/g/n |
| Bluetooth |
Bluetooth 4.2 |
| Wi-Fi Range |
Up to 30m indoors, up to 50m outdoors (depending on conditions) |
| Dry Contacts (Potential-Free) |
Yes |
| Overheating Protection |
Yes |
| Matter Certified |
Yes (after firmware update) |
| Dimensions (H × W × D) |
37 × 42 × 16 mm |
| Weight |
26 g |
| Operating Temperature |
-20°C to 40°C |
| Housing Material |
Plastic |
| Warranty |
3 years |
Specifications are sourced from the manufacturer product page and may be updated.