Smart switch Shelly 1 Gen3, wireless, 240 V AC, plastic housing, 42×16×37 mm, pack of 2

Shelly 1 Gen3 is a compact wireless smart switch designed for remote control of lighting and simple electrical circuits. The device supports 240 V AC input and fits into tight installation spaces thanks to its small plastic housing measuring 42×16×37 mm. Supplied as a pack of two, this model is intended for retrofit installations and smart home setups where Wi‑Fi based on/off control and scene integration are required. Typical power consumption during operation is low, making it suitable for prolonged installation inside junction boxes or behind switches.

Advantages

The Shelly 1 Gen3 provides reliable wireless control over lighting and electrical loads with compact dimensions that ease installation in existing electrical boxes. Built for compatibility with common wiring setups and low power draw, the device enables remote switching via Wi‑Fi and integrates with home automation scenes. Supplied as a pack of two, it offers cost-effective deployment for multiple circuits or paired locations.

Suitable for

• Retrofit of traditional wall switches to enable remote control
• Smart home lighting scenes and schedules
• Remote on/off control of small electrical loads
• Installation inside junction boxes or behind existing switches

Key specifications

• Operating voltage: 240 V AC
• Typical power consumption: 1.2 W
• Housing material: plastic
• Dimensions: 42 × 16 × 37 mm
• Connectivity: wireless (Wi‑Fi)
• Pack quantity: 2 units

How to use

Install the Shelly 1 Gen3 inside a junction box or behind an existing wall switch, following local electrical safety standards. Connect the live and neutral conductors to the appropriate terminals, and wire the switched output to the lighting or load circuit. After powering the device, use the Shelly mobile app or compatible home automation platform to connect the module to the local Wi‑Fi network, configure operation modes, and set up scenes, schedules or remote control. Ensure power is turned off at the circuit breaker during installation and consult a licensed electrician if unsure.

Recommendations

Use the unit in dry indoor environments and verify that the enclosure provides sufficient protection for the installation location. For reliable operation, place the device where it can access a stable Wi‑Fi signal; if coverage is weak, consider a Wi‑Fi extender or alternate placement. Do not exceed the device's rated voltage and intended load types, and perform installations in accordance with local electrical codes.