Product description: Shelly 1 Gen3 - 1-channel flush-mount relay / controller - WiFi / Bluetooth - Android / iOS application - 4 pcs.
Shelly 1 Gen3 is an intelligent relay controlled via WiFi , which enables remote management of various 240 V AC and 12 V DC devices or from 24 V to 30 V DC and a load of up to 16 A. The compact module can be easily mounted in standard installation boxes. The new generation has been equipped with an improved ESP-Shelly-C38F processor and 8 MB of memory, which ensures faster operation and greater integration possibilities. It supports a wide range of protocols (including MQTT, HTTP, Webhooks), and does not require a control unit. Thanks to support for KNXnet/IP, the set will also work perfectly in extensive building automation systems. Shelly 1 Gen3 offers a high level of security, stable connectivity and simple configuration via a mobile application. The set contains 4 relays .
Shelly 1 Gen3 Key Features
- WiFi and Bluetooth communication : the module connects to a WiFi network without the need for an additional gateway, and the built-in Bluetooth allows quick pairing using the Shelly Cloud application
- Low and high voltage support : Shelly 1 Gen3 operates from 110V to 240V AC, 12V DC and 24V to 48V DC, making it a versatile solution
- Fast processor : based on ESP-Shelly-C38F, provides lightning-fast command execution and high performance
- Enhanced security : features overheat protection and MQTT, WebSocket and TLS support for wider application range
- Voice Control : Compatible with voice assistants such as Amazon Alexa, Google Assistant and Samsung SmartThings
- Supported Platforms : Integrates with Amazon Alexa, Google Assistant, Samsung SmartThings, MQTT, Home Assistant, REST, Domoticz, openHAB, and other home automation systems
- Automation support : enables the creation of automation schedules and scenarios, which increases the user experience
- Remote monitoring and control : allows you to remotely control your devices using the Shelly Smart Control app
Why is it worth buying a set of four relays?
By choosing a set of 4 Shelly 1 Gen3 , you gain not only a more attractive unit price, but also the possibility of comprehensive automation of several rooms at the same time . This is an ideal proposition for people modernizing electrical installations in their home, office or service premises. Thanks to a uniform platform and the same modules, you will simplify configuration, management and integration within one Smart Home network.
Practical applications
Shelly 1 Gen3 enables:
- remote lighting control (e.g. automatic switching on after dark)
- garage door and door control
- heating, ventilation and air conditioning management
- automatic garden irrigation based on weather forecasts
- modernization of older devices and switches without the need to replace them
Shelly 1 Gen3 Technical Specification
- Model: S3SW-001X16EU
- Processor: ESP-Shelly-C38F
- Flash Memory: 8MB
- AC supply voltage: 110 V to 240 V
- DC supply voltage: 12 V / 24 V to 48 V
- Maximum switching voltage AC: 240 V
- Maximum switching voltage DC: 30 V
- Maximum AC load: 16 A
- Maximum DC load: 10A
- Number of channels: 1
- Power consumption: < 1.2 W
- Communication: WiFi 2.4 GHz 802.11 b/g/n, Bluetooth 4.2
- Overheating protection: yes
- Voltage-free contact: yes
- Maximum WiFi range: up to 30m indoors, up to 50m outdoors (depending on local conditions)
- Possibility of integration with platforms: Amazon Alexa, Google Assistant, SmartThings, MQTT, Home Assistant, and others
- Housing material: plastic
- Operating temperature: -20°C to 40°C
- Dimensions: 37 x 42 x 16 mm
- Weight: 26 g
Kit Contents
- 4x Shelly 1 Gen3
| Comparison of Shelly Gen1, Gen2, Gen3 and Gen4 Devices | ||||
|---|---|---|---|---|
| Feature | Shelly Gen 1 | Shelly Gen 2 (Plus/Pro, Mini) | Shelly Gen 3 | Shelly Gen 4 |
| WiFi | 2.4 GHz WiFi | 2.4 GHz WiFi | 2.4 GHz WiFi | 2.4 GHz WiFi (WiFi 6) |
| Processing Power | Basic | More powerful processors than Gen 1 | Shelly chip for optimal performance | Most advanced processing power |
| Memory | Basic memory | Up to 4 MB Flash (8 MB in PRO) | 8 MB Flash, 256 kB RAM | More than Gen 3 (512 kB RAM) |
| Bluetooth | No | Yes - for easy setup | Yes - for easy setup | Yes - for easy setup |
| Scripting and Automation | No | Enhanced automation capabilities | Advanced scripting and automation | Advanced scripting and automation |
| Energy Monitoring | Basic (selected models) | Extended monitoring (some models) | Advanced monitoring and safety | Advanced monitoring and safety |
| Device Control | MQTT, CoAP, HTTP Webhooks | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud |
| Virtual Components | No | Available (PRO only) | Supported | Supported |
| KNX Support | No | Yes (selected PRO only) | Yes (selected devices) | Yes (selected devices) |
| Bluetooth Gateway | No | Yes (except BLU TRV, Gen 3 gateway required) | Yes (except BLU TRV, Gen 3 gateway required) | Yes (except BLU TRV, Gen 3 gateway required) |
| KVS (Key-Value Store) | No | Yes | Yes | Yes |
| Timer Loop | No | Auto ON/OFF simultaneously | Auto ON/OFF simultaneously | Auto ON/OFF simultaneously |
| Range Extender | No | Yes | Yes | Yes (WiFi and ZigBee) |
| Simultaneous AP and WiFi | No | Yes | Yes | Yes |
| Ethernet | No | Yes (PRO only) | Yes (PRO only) | Yes (PRO only) |
| Intended Use | Basic home automation | More features, scripting, better hardware | Advanced automation, future-proof | Full automation, maximum flexibility |
| Protocol Support | None | BTHome, MQTT+Cloud, KNX (PRO) | BTHome, KNXnet/IP, Matter, MQTT+Cloud, Virtual Components | BTHome, Matter, ZigBee, TCP/IP Modbus, KNXnet/IP, MQTT+Cloud |
Useful links |



