Shelly 1 Gen4
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A single-channel dry contact smart switch for controlling lights and appliances. Enjoy faster performance and multi-protocol support (Wi-Fi, Zigbee, Matter, Bluetooth).
Key Features
- New - Multi-protocol connectivity: Choose between Bluetooth, Wi-Fi, or Zigbee.
- New - Matter certified.
- New - Works with Apple Homekit: Control connected devices via Matter using the Apple Home app or
- Siri
- Dry contacts (potential-free) - Contactor control options. Allows for switching lower voltage devices.
- Low and high voltage support
- Perfect for retrofitting behind existing switches and sockets
- Supports schedules, scenes, and local operation
- Supports scripting, HTTPS, MQTTS, inbound and outbound Web sockets
- Supports virtual components
- Supports KNXnet/IP communication
- Internal temperature sensor for overheating protection
- No hub required! Control easily through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Siri, Home Assistant, Apple Homekit, or your preferred automation platform
Technical details
Device identification
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Device name: Shelly 1 Gen4
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Device model: S4SW-001X16EU
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Device SSID: Shelly1G4-XXXXXXXXXXXX
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Device Bluetooth ID: 0x1028
Short description
Shelly 1 Gen4 is a small smart switch with potential-free contacts, which allows for remote control of electrical appliances through a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services.
Users can access, control, and monitor Shelly 1 Gen4 remotely from any place where there is internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet.
It can be retrofitted into standard electrical wall boxes, behind power sockets and light switches, or other places with limited space.
Shelly 1 Gen4 has an embedded Web interface which can be used to monitor and control the device, as well as adjust its settings.
The device has a multi-protocol wireless MCU, providing Zigbee and Bluetooth connectivity, ensuring a secure connection.
The device is Matter compatible.
Key features
- Wi-Fi connectivity: The device can be connected to your home Wi-Fi network, allowing you to remotely monitor humidity and temperature data via your smartphone app or other compatible devices.
- Integration with smart home platforms: You can integrate Shelly 1 Gen4 with popular smart home platforms including Google, Alexa, and Samsung SmartThings. This enables voice control and automation features through these platforms.
- Local and cloud control: It can operate standalone in a local Wi-Fi network or through cloud home automation services.
- Bluetooth connectivity: Bluetooth and BLE gateway can be used for inclusion purposes, which can be useful during the setup process.
- Zigbee connectivity: Zigbee can be used for inclusion purposes, which can be useful during the setup process.
- User-friendly interface: The device offers a user-friendly interface with a reset button for manual interaction.
- Improved processor: Upgraded with an improved processor and support for Zigbee connectivity.
- Embedded Web interface: Features an embedded Web interface for monitoring, controlling, and adjusting settings.
- Wireless connection: The device supports Wi-Fi (802.11 b/g/n) and Bluetooth 5.0 protocols, with specified indoor and outdoor range capabilities.
- Dry contacts: Allows for switching lower voltage devices.
- BLE gateway: A bridge between Shelly BLU devices and the wider Shelly ecosystem. It receives Bluetooth signals and sends them to the cloud or locally to another non-Bluetooth device.
- Wi-Fi range extender for IoT devices: A Wi-Fi extender used to extend Wi-Fi network coverage by receiving the current Wi-Fi signal, boosting its strength, and then transmitting the boosted signal across a wider area.
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Zigbee range extender for IoT devices: A Zigbee extender used to extend Zigbee network coverage by receiving Zigbee signals, boosting their strength, and then transmitting the boosted signal across a wider area.
- Extensive integration: The device can be integrated with 3rd party home systems, documented HTTP API, MQTT, HTTP and HTTPS based Web Hooks, UDP
- Schedules: Allows scheduling complex operations to execute within predefined time windows. Users can specify time windows based on date, time of day, day of the week, hour, minute, and second.
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Virtual Components: https://shelly-api-docs.shelly.cloud/gen2/DynamicComponents/Virtual/
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KNX net/IP support: https://shelly-api-docs.shelly.cloud/gen2/Integrations/KNX/
Use cases
- Remote appliance control: Turn appliances on or off remotely using a phone, tablet, PC, or home automation system.
- Convenient network connectivity: As long as Shelly 1 Gen4 is connected to a Wi-Fi router, you can access and control the device from anywhere with internet connectivity.
- Home automation: Shelly 1 Gen4 can automatically control appliances, providing a more effortless and pleasant experience.
Main applications
- Residential
- MDU (Multi-dwelling units - apartments, condos, hotels, etc.)
- Light commercial (small office buildings, small retail/restaurants/gas stations, etc.)
- Government/Municipality
- University/College
Integrations
Amazon Alexa supported features
Yes
Google Smart Home supported features
Yes
Samsung SmartThings supported features
Yes
Device electrical interfaces
Inputs
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1 switch/button input on screw terminal
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1 potential-free contacts relay input on screw terminal
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2 power supply inputs on screw terminals: N and L
Outputs
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1 potential-free contacts relay output on screw terminal
Connectivity
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Wi-Fi
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Bluetooth
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Zigbee
Safety function
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Overheating protection
Supported load types
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Resistive (incandescent bulbs, heating appliances)
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Capacitive (capacitor banks, electronic equipment, motor starting capacitors)
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Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air-conditioners, washing machines, tumble dryers)
User interface
Inputs
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One (Control) button
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Press and hold for 5 seconds to enable Device access point and Bluetooth connection.
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Press and hold for 10 seconds to factory reset the Device.
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Press 5 consecutive times to switch the Device from Matter firmware (default) to Zigbee.
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Press 3 consecutive times to put the Device in Zigbee inclusion mode. The Device stays in this mode for 2 minutes and you can find it in the Home Automation platform through the Zigbee Hub.
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Outputs
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LED (monocolor) indication
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AP (Access Point) enabled and Wi-Fi disabled:
1 secondON/ 1 secondOFF -
Wi-Fi enabled, but not connected to a Wi-Fi network:
1 secondON/ 3 secondsOFF -
Connected to a Wi-Fi network:
ConstantlyON -
Cloud is enabled, but not connected:
1 secondON/5 secondsOFF -
Connected to Shelly Cloud:
ConstantlyON -
OTA (Over the Air Update):
½ secON/ ½ secondOFF -
Button pressed and held for 5 seconds:
½ secondON/ ½ secondOFF -
Button presses and held for 10 seconds:
¼ secondON/ ¼ secondOFF
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The list above starts with the initial device status and the lowest priority. Every next state cancels the previous one.
Simplified internal schematics
SHELLY APP
Shelly Smart Control is Free!
Download our free app to manage spaces, monitor energy, and track expenses. Upgrade to Premium for even more features!
Specifications
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Quantity |
Value |
|---|---|
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Physical |
|
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Size (HxWxD): |
37x42x16 mm / 1.46x1.65x0.63 inch |
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Weight: |
26 g / 0.92 oz |
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Screw terminals max torque: |
0.4 Nm / 3.5 lbin |
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Conductor cross section: |
0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, and bootlace ferrules) |
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Conductor stripped length: |
6 to 7 mm / 0.24 to 0.28 in |
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Mounting: |
Wall console |
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Shell material: |
Plastic |
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Shell color: |
Blue |
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Terminals color: |
Grey (Mouse Grey RAL7005, R(106) G(110) B(106), HEX #6A6E6A, LRV 15.19.) |
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Environmental |
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Ambient working temperature: |
-20 °C to 40 °C / -5 °F to 105 °F |
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Humidity: |
30 % to 70 % RH |
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Max. altitude: |
2000 m / 6562 ft |
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Electrical |
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Power supply: |
|
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Power consumption: |
< 1 W |
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Neutral not needed: |
No |
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External protection: |
Cable protection switch in accordance with EN60898-1 (tripping characteristic B or C, max. 16 A rated current, min. 6 kA interrupting rating, energy limiting class 3) |
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Output circuits ratings |
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Max. switching voltage: |
|
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Max. switching current: |
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Sensors, meters |
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Internal-temperature sensor: |
Yes |
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Radio |
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Wi-Fi |
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Protocol: |
802.11 b/g/n |
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RF band: |
2412 - 2472 МHz |
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Max. RF power: |
< 20 dBm |
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Range: |
Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
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Bluetooth |
|
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Protocol: |
4.2 |
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RF band: |
2402 - 2480 MHz |
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Max. RF power: |
< 4 dBm |
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Range: |
Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
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Zigbee |
|
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Protocol: |
802.15.4 |
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Zigbee repeater: |
Yes |
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RF bands: |
2400 to 2483.5 MHz |
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Max. RF power: |
< 20 dBm |
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Range: |
Up to 100 m / 328 ft indoors and 300 meters / 984 ft outdoors |
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Microcontroller unit |
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CPU: |
ESP-Shelly-C68F |
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Flash: |
8MB |
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Firmware capabilities |
|
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Schedules: |
20 |
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Webhooks (URL actions): |
20 with 5 URLs per hook |
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Scripting: |
Yes |
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MQTT: |
Yes |
Legend
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Terminals |
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Wires |
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|---|---|---|---|
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I |
Load circuit input terminal |
L |
Live wire (110-240 V~) |
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O |
Load circuit output terminal |
N |
Neutral wire |
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SW |
Switch (controlling O) input terminal |
+ |
12/24-48V ⎓ positive wire |
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+12V |
12 V⎓ positive terminal |
GND |
12/24-48V⎓ ground wire |
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L |
Live terminal (110-240 V~) |
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|
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N |
Neutral terminal |
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+ |
24-48 V⎓ positive terminal |
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Ʇ |
12/24-48V⎓ ground terminal |
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Solutions
Make your lights smart
Automate your lighting with Shelly 1 Gen4, turning your lights on at sunset and off at bedtime. You can create custom schedules and scenes to fit your daily routine, control your lights remotely, and ensure they are never on when not needed. Manual control remains available, making it easy for everyone in the home to adjust the lighting as needed.
Remote garage door control
Shelly 1 Gen4 allows you to automate and control your garage door from anywhere. It is perfect for 12V DC and 24-48V DC setups and can be seamlessly used for garage door management. Use the Shelly Plus Add-on to add a reed switch to monitor whether the garage door is open or closed.
Optimal heating and cooling
Shelly 1 Gen4 easily controls valves and heating/cooling manifolds, ensuring precise water flow and temperature regulation. Pair it with a Shelly BLU H&T to create hot water distribution schedules and scenes, or switch between heating and cooling modes based on current temperatures, maintaining a comfortable climate year-round.
Irrigation that follows the weather
With Shelly 1 Gen4, you can set up an irrigation system to water your garden on sunny days and skip it on rainy ones. Using advanced scripting or the Shelly Smart Control App Premium, you can sync your watering schedule with real-time weather forecasts. For even greater precision, combine it with a Shelly Plus Add-on and a soil moisture sensor.
