Smart relay Shelly Wave PRO 3 — black, plastic housing, 110–240 V AC, 50–60 Hz, 0.3 W, 53×59×96 mm

Shelly Wave PRO 3 is a compact smart relay in a black plastic housing designed for direct integration with AC mains systems. It accepts 110–240 V AC at 50–60 Hz and consumes approximately 0.3 W in standby. With dimensions of 53×59×96 mm and a lightweight construction, the device fits into junction boxes or mounting locations where space is limited and enables remote switching and automation of lighting, appliances or electrical circuits within a smart home or building control setup.

Advantages

The device provides reliable remote control and automation while keeping a small physical footprint suitable for hidden installation. Its universal AC input range supports common mains voltages, and the low standby power reduces idle energy consumption. The plastic housing offers electrical insulation and simplifies installation in dry indoor environments. Integration with common smart-home systems and the ability to switch loads make the relay a versatile component for retrofit and new installations.

Suitable for

• Switching and automating indoor lighting circuits
• Remote control of household appliances and small motors
• Integration into home automation systems for scene or schedule control
• Use in tight installation spaces such as junction boxes or behind switches

Key specifications

• Operating voltage: 110–240 V AC
• Frequency: 50–60 Hz
• Typical standby power consumption: 0.3 W
• Housing material: plastic (black)
• Dimensions: 53 × 59 × 96 mm
• Weight: 150 g

How to use

Install the relay in accordance with local electrical codes and the device wiring diagram, placing it in a dry indoor location such as a junction box or mounting cavity. Connect mains supply and load conductors to the corresponding terminals, ensuring power is disconnected during installation. After wiring, restore power and proceed with network configuration and integration into the chosen smart-home system or app following manufacturer instructions. Use the app or automation controller to set schedules, scenes, or remote control parameters.

Usage recommendations

Verify load type and rating before connecting to ensure compatibility with the relay’s switching capability. Avoid installing the device in locations exposed to moisture or extreme temperatures; use suitable protective enclosures if required. For safety and compliance, commissioning and wiring should be performed by a qualified electrician.