Shelly 1 Gen3
Device Identification
- Device name: Shelly 1 Gen3
- Device model: S3SW-001X16EU
- Device SSID: Shelly1G3-XXXXXXXXXXXX
- BLE Model ID: 0x1018
Short Description
Shelly 1 Gen3 is a small form factor smart switch with potential-free contacts, which allows remote control of electric appliances through a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or be operated through cloud home automation services. The device also features an improved processor and increased memory compared to its predecessor.
It can be accessed, controlled, and monitored remotely from any location with internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet.
The device can be retrofitted into standard electrical wall boxes, behind power sockets and light switches, or other spaces with limited room.
Shelly 1 Gen3 includes an embedded Web Interface for monitoring, control, and configuration of settings.
Main Features
- Wi-Fi Connectivity: Connects to your home Wi-Fi network for remote monitoring and control via smartphone app or compatible devices.
- Integration with Smart Home Platforms: Compatible with Google Assistant, Amazon Alexa, and Samsung SmartThings for voice control and automation.
- Local and Cloud Control: Functions independently on a local Wi-Fi network and can also be managed via cloud-based home automation services.
- Bluetooth Connectivity: Supports Bluetooth 4.2 (BLE) for setup assistance and device pairing.
- User-Friendly Interface: Includes a physical reset button for manual interaction.
- Improved Processor and Memory: Upgraded hardware for better performance and responsiveness.
- Embedded Web Interface: Built-in web interface for device management and configuration.
- Wireless Connectivity: Supports Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 with specified indoor/outdoor range.
- Dry Contact: Enables switching of low-voltage devices.
- BLE Gateway: Acts as a bridge between Shelly BLU devices and the wider Shelly ecosystem, forwarding Bluetooth signals to the cloud or local devices.
- Wi-Fi Range Extender for IoT Devices: Enhances Wi-Fi signal coverage by receiving, amplifying, and retransmitting the signal over a wider area.
- Scripting: ShellyScript Language Features
- Wide Range of Integrations: Supports third-party home systems via HTTP API, MQTT(s), Webhooks (HTTP/HTTPS), and UDP.
- Schedules: Define complex operations based on date, time, weekdays, hours, minutes, and seconds.
- Virtual Components: Dynamic Virtual Components Documentation
Use Cases
- Remote Appliance Control: Turn on/off appliances remotely using a mobile device, tablet, PC, or home automation system.
- Internet-Connected Convenience: Access and control devices from anywhere with internet access, provided the Shelly 1 Gen3 is connected to Wi-Fi.
- Home Automation: Automate power appliance control for enhanced comfort and convenience.
Main Applications
- Residential
- MDU (Multi Dwelling Units – apartments, condominiums, hotels, etc.)
- Light Commercial (small offices, retail stores, restaurants, gas stations, etc.)
- Government/Municipal
- University/College
Integrations
Amazon Alexa Supported Capabilities
Yes
Google Smart Home Supported Traits
Yes
Samsung SmartThings Supported Capabilities
Yes
Simplified Internal Schematics
Device Electrical Interfaces
Inputs
- 1 switch/button input on screw terminal
- 1 potential-free contacts relay input on screw terminal
- 2 power supply inputs on screw terminals: N and L
Outputs
- 1 potential-free contacts relay output on screw terminal
Connectivity
- Wi-Fi
- Bluetooth
Safety Function
- Overheating protection
Supported Load Types
- Resistive (incandescent bulbs, heating appliances)
- Capacitive (capacitor banks, electronic equipment, motor starting capacitors)
- Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air conditioners, washing machines, tumble dryers)
User Interface
Inputs
- One (Control) Button
- Press and hold for 5 seconds: Enables Device Access Point and Bluetooth connection.
- Press and hold for 10 seconds: Performs factory reset.
Outputs
- LED (Monocolor) Indication
- AP enabled, Wi-Fi disabled: 1 sec ON / 1 sec OFF
- Wi-Fi enabled but not connected: 1 sec ON / 3 sec OFF
- Connected to Wi-Fi network: Constantly ON
- Cloud enabled but not connected: 1 sec ON / 5 sec OFF
- Connected to Shelly Cloud: Constantly ON
- OTA (Over-the-Air Update): ½ sec ON / ½ sec OFF
- Button pressed and held for 5 seconds: ½ sec ON / ½ sec OFF
- Button pressed and held for 10 seconds: ¼ sec ON / ¼ sec OFF
Note: States are prioritized from top to bottom. Each subsequent state overrides the previous one.
Specifications
| Quantity | Value |
|---|---|
| Physical | |
| Size (HxWxD) | 37×42×16 mm / 1.46×1.65×0.63 in |
| Weight | 26 g / 0.92 oz |
| Screw terminals max torque | 0.4 Nm / 3.5 lbin |
| Conductor cross section | 0.5 to 4 mm² / 20 to 11 AWG (solid, stranded, bootlace ferrules) |
| Conductor stripped length | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting | Wall console |
| Shell material | Plastic |
| Shell color | Blue |
| Terminal color | Black |
| Environmental | |
| Ambient working temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Electrical | |
| Power supply | 110–240 V~ 24–48 V⎓ 12 V⎓ |
| Power consumption | < 1.2 W |
| External protection | Cable protection switch per EN60898-1 (tripping B/C, max 16 A, min 6 kA interrupting rating, energy limiting class 3) |
| Output circuits ratings | |
| Max. switching voltage | 240 V~ 30 V⎓ |
| Max. switching current | 16 A / 240 V~ 10 A / 30 V⎓ |
| Sensors, meters | |
| Internal temperature sensor | Yes |
| Radio | |
| Wi-Fi Protocol | 802.11 b/g/n |
| RF band | 2401 – 2483 MHz |
| Max. RF power | < 20 dBm |
| Range | Up to 30 m / 100 ft (indoor), up to 50 m / 160 ft (outdoor) (Depends on local conditions) |
| Bluetooth | |
| Protocol | 4.2 with BLE |
| RF band | 2400 – 2483.5 MHz |
| Max. RF power | < 4 dBm |
| Range | Up to 10 m / 33 ft (indoor), up to 30 m / 100 ft (outdoor) (Depends on local conditions) |
| Microcontroller unit | |
| CPU | ESP-Shelly-C38F |
| Flash | 8 MB |
| Firmware capabilities | |
| Schedules | 20 |
| Webhooks (URL actions) | 20 with 5 URLs per hook |
| Scripting | Yes |
| MQTT | Yes |
Basic Wiring Diagrams
| AC Power Supply (110–240 V~) | DC Power Supply (24–48 V⎓) | 12 V⎓ Stabilized Power Supply |
|---|---|---|
 |  |  |
Legend
| Terminals | Description | Wires | Description |
|---|---|---|---|
| I | Load circuit input terminal | L | Live wire (110–240 V~) |
| O | Load circuit output terminal | N | Neutral wire |
| SW | Switch (controlling O) input terminal | + | 12/24–48 V⎓ positive wire |
| +12V | 12 V⎓ positive terminal | GND | 12/24–48 V⎓ ground wire |
| L | Live terminal (110–240 V~) | ||
| N | Neutral terminal | ||
| + | 24–48 V⎓ positive terminal | ||
| ᶠ | 12/24–48 V⎓ ground terminal |
Shelly Smart Control
Shelly Web User Interface
Components and APIs
Compliance
- Shelly 1 Gen3 multilingual EU Declaration of Conformity (222)
- Shelly 1 Gen3 AU/NZ Certificate for Suitability
- Shelly 1 Gen3 UK PSTI ACT Statement of Compliance
Compliance Archive
- Shelly 1 Gen3 multilingual EU Declaration of Conformity (130)
- Shelly 1 Gen3 multilingual EU Declaration of Conformity (48)
Printed User Guide
Additional Language Version
Installation Guides
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