Shelly 1 Gen3
Device Identification
- Device name: Shelly 1 Gen3
- Device model: S3SW-001X16EU
- Device SSID: Shelly1G3-XXXXXXXXXXXX
- BLE Model ID: 0x1018
Short Description
The Shelly 1 Gen3 is a compact smart switch featuring potential-free contacts, enabling remote control of electrical appliances via smartphone, tablet, PC, or home automation systems. It operates standalone within a local Wi-Fi network or can be managed through cloud-based home automation services. Compared to its predecessor, it features an upgraded processor and increased memory for improved performance.
The device supports remote access, control, and monitoring from anywhere with internet connectivity, provided it remains connected to a Wi-Fi router and the internet.
It is designed for retrofitting into standard electrical wall boxes, behind power sockets, light switches, or other space-constrained locations.
The Shelly 1 Gen3 includes an embedded web interface for device monitoring, configuration, and management.
Main Features
- Wi-Fi Connectivity: Connects to your home Wi-Fi network to enable remote monitoring and control.
- Smart Home Integration: Compatible with Google Assistant, Amazon Alexa, and Samsung SmartThings for voice control and automation.
- Local and Cloud Control: Functions independently on a local network or integrates with cloud-based platforms.
- Bluetooth Connectivity: Supports Bluetooth and BLE gateway functionality, useful during initial setup.
- User-Friendly Interface: Includes a physical reset button for manual operations.
- Improved Processor and Memory: Enhanced hardware delivers better performance and responsiveness.
- Embedded Web Interface: Accessible via browser for full device control and settings adjustment.
- Wireless Protocols: Supports Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 with defined indoor/outdoor range capabilities.
- Dry Contact Switching: Designed for switching low-voltage devices safely.
- BLE Gateway: Acts as a bridge between Shelly BLU devices and the broader Shelly ecosystem by receiving Bluetooth signals and forwarding them to the cloud or local devices.
- Wi-Fi Range Extender for IoT Devices: Extends Wi-Fi coverage by receiving, amplifying, and retransmitting the signal across wider areas.
- Scripting Support: Shelly Script Language Features
- Wide Integration Options: Supports third-party systems via HTTP API, MQTT(s), Webhooks (HTTP/HTTPS), and UDP.
- Scheduling: Enables complex automation schedules based on date, time, weekdays, hours, minutes, and seconds.
- Virtual Components: Virtual Dynamic Components Documentation
Use Cases
- Remote Appliance Control: Turn on/off electrical appliances using a mobile phone, tablet, PC, or home automation system.
- Internet-Connected Convenience: Control devices remotely from any location with internet access, as long as the device is connected to a Wi-Fi network.
- Home Automation: Automate appliance power cycles for enhanced comfort and energy efficiency.
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 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) indicator
- 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): 0.5 sec ON / 0.5 sec OFF
- Button pressed and held for 5 seconds: 0.5 sec ON / 0.5 sec OFF
- Button pressed and held for 10 seconds: 0.25 sec ON / 0.25 sec OFF
Note: The LED states are prioritized in order listed. Each subsequent state overrides the previous one.
Specifications
| Category | Parameter | Value |
|---|---|---|
| Physical | Size (H×W×D) | 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 lbf·in | |
| Conductor cross section | 0.2 – 2.5 mm² / 24 – 14 AWG (solid, stranded, bootlace ferrules) | |
| Conductor stripped length | 6 – 7 mm / 0.24 – 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 % – 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 (B or C tripping characteristic, max. 16 A rated current, 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 | Bluetooth 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 up to 5 URLs per hook | |
| Scripting | Yes | |
| MQTT | Yes |
Basic Wiring Diagrams
110–240 V~ Power Supply
24–48 V⎓ Power Supply
12 V⎓ Stabilized Power Supply
Legend
Terminals
- I: Load circuit input terminal
- O: Load circuit output terminal
- L: Live wire (110–240 V~)
- 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
- Ʇ: 12/24–48 V⎓ ground terminal
Wires
- Solid line: Power/Signal path
- Dashed line: Optional or auxiliary connection
Shelly Smart Control
Shelly Web User Interface
Components and APIs
Compliance
- Shelly 1 Gen3 Multilingual EU Declaration of Conformity (2025-07-22)
- Shelly 1 Gen3 AU/NZ Certificate for Suitability
- Shelly 1 Gen3 UK PSTI ACT Statement of Compliance
Compliance Archive
Printed User Guide
Shelly 1 Gen3 Multilingual Printed User and Safety Guide
Installation Guides
(No installation guides available at this time)