Shelly 1L Gen3
Shelly 1L Gen3 is a smart WiFi relay that works without a neutral wire
Description
Shelly 1L Gen3 – Smart WiFi Relay Without Neutral Wire
Shelly 1L Gen3 is an advanced WiFi relay that enables smart control of lighting and outlets – even in installations without a neutral wire. This third-generation model offers faster response, improved security, and greater compatibility with smart home systems.
With support for both 230V AC and low-power control via bypass, the Shelly 1L Gen3 can easily be integrated into both new and old electrical systems. It is controlled via WiFi and is fully compatible with Home Assistant, Google Home, Alexa, and the Shelly Smart Control app.
Its compact size allows it to be installed directly behind existing wall switches – and you can continue using your current buttons with added smart functionality.
Features & Benefits:
- Works without neutral wire: Ideal for older installations
- WiFi control: No hub or gateway required
- Voice control compatible: Google Home, Alexa
- Supports scenes and automation via app or third-party platforms
- Advanced protection: Overheat and overvoltage protection
- Compatible with Home Assistant, MQTT, REST API
Shelly 1L Gen3 is the perfect solution for upgrading your home with smart features without rewiring.
Technical Data
| Size (HxWxD) | 37x42x16 ±0.5 mm / 1.46x1.65x0.63 ±0.02 in |
| Weight | 24 g / 0.85 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, and bootlace ferrules) |
| Conductor stripped length | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting | In-wall |
| Shell material | Plastic |
| Shell color | Cyan |
| Terminal color | Black |
| Environmental | |
| Ambient working temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Storage temperature | 10°C to 40 °C |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Electrical Power supply | 220-240 V~ 50Hz (Shelly Bypass is required) |
| Shelly Bypass included | Yes |
| Power consumption | < 1.2 W |
| Neutral not needed | Yes (Shelly Bypass is required for the load at O) |
| Min. load without neutral and without a Bypass | No (Shelly Bypass is required for the load at O), for all LED lights. No, Bypass is not needed for incandescent lights. |
| External protection | 10 A, tripping characteristic B or C, 6 kA interrupting rating, Energy limiting class 3 Output circuits ratings |
| Max. switching voltage | 240 V~ 50 Hz |
| Max. switching power | 200 W |
| Sensors, meters | |
| Internal-temperature sensor | Yes |
| Radio | |
| Wi-Fi Protocol | 802.11 b/g/n |
| RF band | 2401 - 2495 МHz Max. |
| RF power | < 20 dBm |
| Range | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) |
| Bluetooth | |
| Protocol | 4.2 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 (Depends on local conditions) |
| Microcontroller unit | |
| CPU | ESP-Shelly-C38F |
| Clock frequency | 160 Mhz |
| RAM | 512 KB |
| Flash | 8 MB |
| Firmware capabilities | |
| Schedules | 20 Webhooks |
| (URL actions) | 20 with 5 URLs per hook |
| Scripting | Yes MQTT |
| Certifications | CE, RoHS |
| EAN | 3800235261637 |
