Shelly 1 Gen4 Smart Relay

The Shelly 1 Gen4 is a compact smart relay that lets you remotely control appliances like lights, heaters, and motorised blinds. It fits easily behind switches or sockets and connects through WiFi, Bluetooth, Zigbee, and Matter. You can operate it through the free mobile app or include it in automated scenes and schedules with other Shelly devices.

£19.49 inc VAT

SKU: 1-GEN4 Category:
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Description

The Shelly 1 Gen4 is a compact, powerful and flexible smart relay designed for installation behind existing electrical appliances, allowing them to be connected to the internet and integrated into a broader smart home or office system. It offers a single channel and supports loads up to 16A, making it well suited for lighting, heating, bi-directional motors such as roller shutters and blinds, and many other electrical devices.

The 1 Gen4 builds on the capabilities of earlier Shelly products like the Shelly Plus 1 Gen3, with upgraded memory and an improved processor that delivers faster performance and supports more advanced scripting for greater customisation. The Gen4 series also prioritises multi-protocol compatibility. All devices in the range include WiFi, Bluetooth, Matter and Zigbee connectivity right out of the box. This means a Gen4 relay can connect directly to a standard home or office WiFi network without the need for extra hubs, or it can integrate smoothly into an existing Matter or Zigbee setup. Importantly, these protocols can operate at the same time on a single relay such as the 1 Gen4, providing an integrated, customisable and easy-to-install smart automation solution.

Key features:

  • Built-in WiFi; no hub required
  • Bluetooth connectivity
  • Embedded web server for local management
  • Dry contact support
  • 1 channel switch, 16A
  • Smart schedules
  • Smart scenes
  • Automatic sunrise/sunset schedules
  • Automatic on/off timer
  • Multi-click action trigger

What’s included:

  • 1 x 1-GEN4
  • 1 x Installation guide

Manuals & data sheets:

Product Specifications

Physical and Performance Attributes

Weight26 grams
Dimensions (L x W x H)37 × 42 × 16 mm

Misc Product Attributes

Physical
Size (HxWxD) 37x42x16 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, ferrules)
Conductor stripped length 6 to 7 mm / 0.24 to 0.28 in
Mounting Wall console / In-wall box
Shell material Plastic
Shell color Blue
Environmental
Ambient working temperature -20°C to 40°C / -5°F to 105°F
Humidity 30 percent to 70 percent RH
Max altitude 2000 m / 6562 ft
Electrical
Power supply 110-240 V~
24-48 V⎓
12 V⎓
Power consumption less than 1.2 W
Output circuits ratings
Max switching voltage 240 V~
30 V⎓
Max switching current 16 A (240 V~)
10 A (30 V⎓)
Sensors and meters
Internal temperature sensor Yes
Radio Wi-Fi
Protocol 802.11 b/g/n
RF band 2401-2483 MHz
Max RF power less than 20 dBm
Range Up to 50 m / 164 ft outdoors, up to 30 m / 98 ft indoors
Bluetooth
Protocol 4.2
RF band 2400-2483.5 MHz
Max RF power less than 4 dBm
Range Up to 30 m / 98 ft outdoors, up to 10 m / 33 ft indoors
Zigbee
Protocol 802.15.4
RF band 2400-2483.5 MHz
Max RF power less than 20 dBm
Range Up to 100 m / 328 ft indoors, up to 300 m / 984 ft outdoors
Microcontroller unit
CPU ESP-Shelly-C68F
Flash 8 MB
Firmware capabilities
Schedules 20
Webhooks 20 with 5 URLs per hook
Wi-Fi range extender Yes
BLE Gateway Yes
Scripting Yes
MQTT Yes
Encryption Yes