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Shelly 1L Gen3 - 1-channel 230VAC relay without N - WiFi/Bluetooth
The Shelly 1L Gen3 is a smart, single-channel 230 VAC relay that operates without a neutral wire, making it an ideal solution for modernizing electrical installations. It supports WiFi and Bluetooth, enabling remote control of lighting and home automation. Its compact design allows for flush-mounted installation, and integration with Smart Home systems provides full control over devices.
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Product description: Shelly 1L Gen3 - 1-channel N-free lighting controller - WiFi/Bluetooth
The Shelly 1L Gen3 is an intelligent, single-channel lighting control relay designed to ensure compatibility with both newer and older installations without a neutral wire. WiFi and Bluetooth connectivity allow for full control from anywhere in the world, enabling local communication, which is particularly important during initial startup or in situations with limited network access, and significantly simplifying the configuration process. The Shelly 1L Gen3 is equipped with a modern chip offering greater processing power and increased memory, allowing users to create more advanced scenes and schedules. Integration with the Smart Home system ensures stable operation, even during intensive use. Support for protocols such as MQTT, HTTP, and REST API offers extensive integration with IoT systems, Home Assistant , and cloud-based solutions. The device's compact design allows for installation in a standard flush-mounted box, without compromising the aesthetics of the interior. Additionally, the relay is equipped with a built-in temperature sensor to protect against overheating . Support for up to 20 schedules and 20 webhooks, as well as the ability to run local scenes and scripts, makes it an exceptionally versatile home automation component.
In the case of devices with low load power, it is necessary to connect the bypass that is part of the set.
Shelly 1L Gen3 - 1-channel 230VAC relay without N - WiFi/Bluetooth.
The Shelly 1L Gen3 does not require a neutral wire to function properly.
Shelly 1L Gen3 Controller Main Features
- Operation without neutral wire: can be installed in installations without N wire, which makes the relay an ideal tool for upgrading older systems (bypass required)
- WiFi and Bluetooth connectivity: enabling quick pairing, convenient configuration and communication with other system components without the need for an additional hub
- Built-in temperature sensor : protection in the form of automatic shutdown of the controller in the event of a risk of overheating
- Scheduling and webhook support : programming up to 20 timed tasks and 20 webhooks with 5 URLs
- Integration with Smart Home systems : compatibility with Google Home, Amazon Alexa, Home Assistant and MQTT
- Scripting capability : support for advanced local automation scenarios
- Gen3 generation: a more efficient processor and larger memory, which translates into stability and extensive configuration options
Compact housing and possibility of mounting in a flush-mounted box
Shelly 1L Gen3 was designed with maximum space efficiency in mind, fitting easily into a standard flush-mounted box, even behind a traditional light switch. Its compact size allows for installation in confined spaces without interfering with existing electrical wiring. This solution allows for the efficient creation or expansion of a Smart Home system while maintaining the aesthetics of the interior and existing equipment. The module is suitable for both new installations and the modernization of older systems.
The small dimensions of the Shelly 1L Gen3 allow installation in places with limited space.
In the case of devices with low load power, such as LED lighting, it is necessary to use an additional bypass module.
Neutral-free operation and bypass support
In the case of the Shelly 1L Gen3, connecting a neutral wire (N) is not necessary. This makes it an ideal solution for older electrical installations where such a wire may not be available. This is a great solution for situations where the user wants to avoid costly rewiring while still being able to implement a Smart Home system very affordably. For low-power devices, such as LED lighting , the manufacturer provides the option of using an additional bypass module , which stabilizes and eliminates issues such as flickering or glowing after being turned off. Bypass support increases the device's compatibility with various types of light sources and ensures reliable operation in any installation.
Smart scenes and Shelly system integration in home automation
Shelly 1L Gen3 enables the creation of advanced scenes and automations that allow the operation of lighting and devices to be tailored to the user's daily needs. With the ability to define schedules, time-dependent lighting, sunrise/sunset lighting, and responses to other devices, the system operates fully autonomously. The module can be easily connected to other Shelly devices, creating a cohesive and extensive ecosystem in which all elements collaborate in real time. Furthermore, support for protocols such as MQTT and REST API allows for integration with external systems, providing virtually unlimited configuration and expansion possibilities.
Thanks to the ability to connect the module with other Shelly devices, you can create a coherent and extensive ecosystem in which all elements cooperate with each other in real time.
The S3SW-0A1X1EUL model does not require a neutral connection, but a bypass is required for the load on O.
Shelly 1L Gen3 Specifications
- Power supply voltage: 220 V to 240 V, 50/60 Hz
- Power consumption: up to 1.2 W
- Neutral wire: not required
- Shelly Bypass: Included (required for O load)
- Temperature sensor: built-in
- WiFi:
- WiFi protocol: 802.11 b/g/n
- WiFi range: up to 30 m indoors and up to 50 m outdoors (depending on local conditions)
- Maximum RF power: up to 20 dBm
- RF band: from 2401 MHz to 2495 MHz
- Bluetooth:
- Bluetooth Standard: 4.2
- Bluetooth range: up to 10 m indoors and up to 30 m outdoors (depending on local conditions)
- Maximum RF power: up to 4 dBm
- RF Band: 2400MHz to 2483.5MHz
- System: ESP-Shelly-C38F
- Clock frequency: 160 MHz
- RAM: 512 KB
- Flash memory: 8 Mb
- Number of schedules: 20
- Firmware: Webhooks: 20 with 5 URLs/hook, scripts, MQTT, CoAP
- Operating temperature: -20°C to 40°C
- Operating humidity: 30% to 70% RH
- Maximum altitude: 2000 m
- Maximum tightening torque of screw connections: 0.4 Nm
- Maximum wire cross-section: 0.5 mm2 to 4 mm2 / 20 AWG to 11 AWG
- Stripped wire length: 6 mm to 7 mm
- Installation: flush-mounted
- Material: plastic
- Color: cyan housing, white print, black terminals
- Dimensions: 37 x 42 x 16 mm
- Weight: 24 g
Shelly Gen1, Gen2, Gen3, and Gen4 Device Comparison
| Function | Shelly Gen 1 | Shelly Gen 2 (Plus/Pro, Mini) | Shelly Gen 3 | Shelly Gen 4 |
|---|---|---|---|---|
| WiFi | 2.4 GHz WiFi | 2.4 GHz WiFi | 2.4 GHz WiFi | 2.4GHz WiFi (WiFi 6) |
| Computing power | Basic | More efficient processors than Gen 1 | Shelly Chip for Optimal Performance | The most advanced computing power |
| Memory | Primary memory | Up to 4 MB Flash (8 MB in PRO) | 8 MB Flash, 256 kB RAM | More than Gen 3 (512kB RAM) |
| Bluetooth | NO | Yes - for easy setup | Yes - for easy setup | Yes - for easy setup |
| Scripts and automation | NO | Expanded automation capabilities | Advanced scripting and automation | Advanced scripting and automation |
| Energy monitoring | Basic (selected models) | Extended monitoring (some models) | Advanced monitoring and security features | Advanced monitoring and security features |
| Device control | MQTT, CoAP, HTTP Webhooks | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud | MQTTS, HTTP/HTTPS Webhooks, MQTT + Cloud |
| Virtual components | NO | Available (PRO only) | Supported | Supported |
| KNX support | NO | Yes (selected PROs only) | Yes (selected devices) | Yes (selected devices) |
| Bluetooth Gateway | NO | Yes (except BLU TRV, requires Gateway Gen 3) | Yes (except BLU TRV, requires Gateway Gen 3) | Yes (except BLU TRV, requires Gateway Gen 3) |
| KVS (Key-Value Store) | NO | Yes | Yes | Yes |
| Timer Loop | NO | Auto ON/OFF simultaneously | Auto ON/OFF simultaneously | Auto ON/OFF simultaneously |
| Range extender | NO | Yes | Yes | Yes (WiFi and ZigBee) |
| AP and WiFi simultaneously | NO | Yes | Yes | Yes |
| Ethernet | NO | Yes (PRO only) | Yes (PRO only) | Yes (PRO only) |
| Destiny | Basic home automation | More possibilities, scripts, better components | Advanced automation, future-proof solutions | Full automation, maximum flexibility |
| Protocol support | Lack | BTHome, MQTT+Cloud, KNX (PRO) | BTHome, KNXnet/IP, Matter, MQTT+Cloud, Virtual Components | BTHome, Matter, ZigBee, TCP/IP Modbus, KNXnet/IP, MQTT+Cloud |
Useful links
| Name | Value |
|---|---|
| Smart Home |
|
| Communication |
|
| Width | 7 cm |
| Height | 4.5 cm |
| Depth | 3 cm |
| Weight | 0.048 kg |
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