Shelly 1 Gen4
Device Identification
- Device name: Shelly 1 Gen4
- Device model: S4SW-001X16EU
- Device SSID: Shelly1G4-XXXXXXXXXXXX
- Device Bluetooth ID: 0x1028
Short Description
The Shelly 1 Gen4 is a compact smart switch with 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 integrates with cloud-based home automation services.
Users can access, control, and monitor the device remotely from anywhere with internet connectivity, provided the device is connected to a Wi-Fi router and the Internet.
Designed for retrofit installation, it fits into standard electrical wall boxes, behind power outlets, light switches, or other space-constrained locations.
The device features an embedded web interface for real-time monitoring, configuration, and control. Equipped with a multi-protocol wireless MCU, it supports Zigbee and Bluetooth connectivity, ensuring secure and reliable communication. The Shelly 1 Gen4 is also Matter-compatible.
Main Features
- Wi-Fi Connectivity: Connects to your home Wi-Fi network (802.11 b/g/n/ax), enabling remote monitoring and control via mobile apps or compatible devices.
- Smart Home Integration: Compatible with Google Assistant, Amazon Alexa, and Samsung SmartThings for voice control and automation.
- Local & Cloud Control: Operates independently on a local network or via cloud-based platforms.
- Bluetooth Connectivity: Supports Bluetooth and BLE gateways, useful during initial setup.
- Zigbee Connectivity: Enables inclusion into Zigbee networks, ideal for advanced automation setups.
- User-Friendly Interface: Includes a physical reset button for manual operations and diagnostics.
- Improved Processor: Upgraded hardware for enhanced performance and support for Zigbee.
- Embedded Web Interface: Full-featured web UI for configuration, monitoring, and settings adjustment.
- Wireless Protocols: Supports Wi-Fi (802.11 b/g/n/ax) and Bluetooth 5.0 with defined indoor/outdoor range capabilities.
- Dry Contact Switching: Designed for switching low-voltage devices safely.
- BLE Gateway Functionality: Acts as a bridge between Shelly BLU devices and the broader Shelly ecosystem by relaying Bluetooth signals to the cloud or local devices.
- Wi-Fi Range Extender: Enhances Wi-Fi coverage by receiving and retransmitting signals over a wider area.
- Zigbee Range Extender: Expands Zigbee network reach by receiving, boosting, and rebroadcasting signals.
- Scripting Support: Shelly Script Language Features
- Extensive Integrations: Supports third-party systems via HTTP API, MQTT(s), Webhooks (HTTP/HTTPS), and UDP.
- Scheduling: Create complex schedules based on date, time, weekdays, hours, minutes, and seconds.
- Virtual Components: Virtual Dynamic Components Documentation
- KNX Net/IP Support: KNX Integration Guide
Use Cases
Remote Appliance Control
Turn on/off electrical appliances remotely using a mobile device, tablet, PC, or home automation platform.
Internet-Connected Convenience
Access and manage the device from any location with internet access, as long as it remains connected to a Wi-Fi router.
Home Automation
Enable automated control of appliances for improved comfort, convenience, and energy efficiency.
Home Automation Use Cases
Light Control
- Remote control of standard lighting (LED, incandescent, halogen).
- Set timers or schedules (e.g., porch lights at sunset).
- Integrate with motion sensors (e.g., Shelly BLU Motion) for occupancy-based lighting.
Garage Door Automation
- Serve as a smart trigger to open/close garage doors.
- Monitor door status using sensor inputs (e.g., Shelly Plus Add-on).
- Enable voice control via assistants like Alexa or Google Assistant.
Fan or Ventilation Control
- Automate bathroom or kitchen exhaust fans based on humidity levels (e.g., using Shelly BLU H&T).
- Turn on ventilation during specific times or based on occupancy.
Heater or Towel Rail Switching
- Control electric towel warmers or heaters (max. switching current: 16A).
- Schedule operation or link to temperature thresholds via sensors (e.g., Shelly BLU H&T).
Commercial Applications
Lighting Automation in Small Offices or Shops
- Control lighting zones according to business hours.
- Use motion detectors (e.g., Shelly BLU Motion) to reduce energy consumption.
Meeting Room Occupancy Management
- Automatically enable/disable projectors or AV equipment based on room occupancy.
Security and Access Systems
- Remotely unlock gates or doors for deliveries.
- Monitor the open/closed state of access points.
Industrial/Utility Use Cases
Equipment Monitoring & Control
- Perform remote power cycling of routers, modems, or network switches.
Pump or Motor Control
- Automate irrigation pumps in greenhouses or fields (max. switching current: 16A).
- Control valves remotely using compatible add-ons (e.g., Shelly Add-On Mechanical Manipulator).
Main Applications
- Residential
- MDU (Multi-Dwelling Units – apartments, condos, 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 relay input on screw terminal
- 2 power supply inputs on screw terminals: N and L
Outputs
- 1 potential-free relay output on screw terminal
Connectivity
- Wi-Fi
- Bluetooth
- Zigbee
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: Enter Access Point mode and enable Bluetooth connection.
- Press and hold for 10 seconds: Factory reset the device.
- Press 5 times consecutively: Switch firmware from Matter to Zigbee.
- Press 3 times consecutively: Enter Zigbee inclusion mode (active for 2 minutes; device appears in the Zigbee hub).
Outputs
- Monochrome LED 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 update in progress: 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: States are processed in order of priority—later states override earlier ones.
Specifications
| Quantity | 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 lbin |
| Conductor cross section | 0.2 to 2.5 mm² / 24 to 14 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 |
| Terminals color | Grey |
| 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 W | | Neutral required | No | | External protection | Cable protection switch per EN60898-1 (tripping characteristic B or C, max. 16 A rated current, min. 6 kA interrupting rating, energy limiting class 3) |
| Output Circuit 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/ax | | RF band | 2412 – 2472 MHz | | Max. RF power | < 20 dBm | | Range | Up to 30 m / 100 ft indoors
Up to 50 m / 160 ft outdoors
(Depends on local conditions) |
| Bluetooth | | | Protocol | 5.0 | | RF band | 2402 – 2480 MHz | | Max. RF power | < 4 dBm | | Range | Up to 10 m / 33 ft indoors
Up to 30 m / 100 ft outdoors
(Depends on local conditions) |
| Zigbee | | | Protocol | 802.15.4 | | Zigbee repeater | Yes | | RF bands | 2400 – 2483.5 MHz | | Max. RF power | < 20 dBm | | Range | Up to 100 m / 328 ft indoors
Up to 300 m / 984 ft outdoors
(Depends on local conditions) |
| Microcontroller Unit | | | CPU | ESP-Shelly-C68F | | Flash | 8 MB |
| Firmware Capabilities | | | Schedules | 20 | | Webhooks (URL actions) | 20 hooks, 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 input terminal (controls O)
- +: Positive wire (12/24–48 V⎓)
- +12V: 12 V⎓ positive terminal
- GND: Ground wire (12/24–48 V⎓)
- L: Live terminal (110–240 V~)
- N: Neutral terminal
- +: Positive terminal (24–48 V⎓)
- Ʇ: Ground terminal (12/24–48 V⎓)
Wires
- Color-coded for clarity and safety compliance.
Shelly Smart Control
Shelly Web User Interface
Components and APIs
Compliance
- Shelly 1 Gen4 Multilingual EU Declaration of Conformity (2025-07-25)
- Shelly 1 Gen4 UK PSTI ACT Statement of Compliance
- Compliance Archive: Shelly 1 Gen4 EU Declaration (2025-03-10)
Printed User Guide
- Shelly 1 Gen4 Multilingual Printed User and Safety Guide
- Ръководство за употреба и безопасност (Bulgarian)
Installation Guides
- (No content provided)