Description
Main features
Wi-Fi Connectivity: The device can connect to your home Wi-Fi network, allowing you to remotely monitor humidity and temperature data through a smartphone app or other compatible devices.
Integration with Smart Home Platforms: You can integrate the Shelly 1 Gen3 with popular smart home platforms, including Google, Alexa, and Samsung SmartThings. This enables voice control and automation capabilities through these platforms.
Local and Cloud Control: Can function independently in a local Wi-Fi network and can also be operated through cloud home automation services.
Bluetooth Connectivity: Bluetooth and BLE gateway are available for inclusion purposes, which may be useful during the setup process.
User-Friendly Interface: The device provides a user-friendly interface with a reset button for manual interactions.
Improved Processor and Memory: Upgraded with an improved processor and increased memory for enhanced performance.
Embedded Web Interface: Features an embedded web interface for monitoring, control, and adjustment of settings.
Wireless Connectivity: The device supports Wi-Fi (802.11 b/g/n) and Bluetooth 4.2 protocols with specified indoor and outdoor range capabilities.
Dry Contact: Allows switching on and off of lower voltage devices.
BLE Gateway: Bridge between your 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 is employed to expand the reach of your Wi-Fi network by receiving your current Wi-Fi signal, enhancing its strength, and then transmitting the enhanced signal over a wider area.
Scripting: https://shelly-api-docs.shelly.cloud/gen2/ComponentsAndServices/Script
Wide range of integrations: The device can be integrated with 3rd party home systems, documented HTTP API, MQTT(s), Web Hooks over HTTP and HTTPS, UDP
Schedules: Allows scheduling of complex operations to be executed in predefined time window. Users can specify time windows based on date, time of day, weekdays, hours, minutes and seconds.
Virtual Components: https://shelly-api-docs.shelly.cloud/gen2/DynamicComponents/Virtual/
Use cases
Remote Appliance Control: Turn on or off electric appliances remotely using your mobile phone, tablet, PC, or home automation system.
Internet-Connected Convenience: Access аnd control devices from anywhere with internet connectivity, as long as the Shelly 1 Gen3 is connected to a Wi-Fi router.
Home Automation: Shelly 1 Gen3 enables automatic control of power appliances for more relaxing and enjoyable experience.
Main applications
Residential
MDU (Multi Dwelling Units – apartments, condominiums, hotels, etc.)
Light commercial (small office buildings, small retail/restaurant/gas station, 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 to enable Device access point and Bluetooth connection.
Press and hold for 10 seconds to factory reset the Device.
Outputs
LED indication
Blue light: Device is in AP mode. Red light: STA mode is active, but the device is not connected to a Wi-Fi network.
Yellow light: STA mode is active, and the device is connected to a Wi-Fi network but not connected to the Shelly Cloud, or the Shelly Cloud is disabled.
Green light: STA mode is active, and the device is connected to both a Wi-Fi network and the Shelly Cloud.
Purple light: Device is connected to a Zigbee network.
Flashing Purple light: Device is in Zigbee pairing mode.
Flashing Red/Blue light: OTA update is in progress.
Rapid Flashing White light x2: Device is in IR pairing mode.
Rapid Flashing Green light ×2: Config saved
Rapid Flashing Red light ×2: Config unsuccessful/ timeout
Specifications
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Quantity | Value |
|---|---|
Physical | |
Size (HxWxD): | 37x42x16 / 1.46×1.65×0.63 |
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, and 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: |
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Power consumption: | < 1.2 W |
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) |
Output circuits ratings | |
Max. switching voltage: |
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Max. switching current: |
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Sensors, meters | |
Internal-temperature sensor: | Yes |
Radio | |
Wi-Fi | |
Protocol: | 802.11 b/g/n |
RF band: | 2401 – 2483 МHz |
Max. RF power: | < 20 dBm |
Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
Bluetooth | |
Protocol: | 4.2 with BLE |
RF band: | 2400 – 2483.5 MHz |
Max. RF power: | < 4 dBm |
Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
Microcontroller unit | |
CPU: | ESP-Shelly-C38F |
Flash: | 8MB |
Firmware capabilities | |
Schedules: | 20 |
Webhooks (URL actions): | 20 with 5 URLs per hook |
Scripting: | Yes |
MQTT: | Yes |
Basic wiring diagrams
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110-240 V~ power supply |
24-48 V⎓ power supply |
12 V⎓ stabilized power supply |
Legend
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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 | + | 12/24-48V ⎓ positive wire |
+12V | 12 V⎓ positive terminal | GND | 12/24-48V⎓ ground wire |
L | Live terminal (110-240 V~) | ||
N | Neutral terminal |
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+ | 24-48 V⎓ positive terminal |
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Ʇ | 12/24-48V⎓ ground terminal |








