Smart switch Shelly SHELLY_1PM_GEN3_2ER — wireless 110–240V, 1.2W consumption, max 240V, plastic housing, 42×16×37 mm, pack of 2

Shelly SHELLY_1PM_GEN3_2ER is a compact wireless smart switch designed for AC installations. Housed in a plastic enclosure, the twin pack contains two identical modules that enable remote control, scheduling and basic automation for lighting circuits and small household appliances. The device operates on 110–240 V AC, has a maximum switching voltage of 240 V and a typical power consumption of 1.2 W. With a small footprint of 42×16×37 mm each, the modules fit into junction boxes and behind existing switches to add wireless control without major rewiring.

Advantages

The module offers wireless connectivity in a compact form factor suitable for concealed installation. Low standby power consumption keeps energy overhead minimal while preserving continuous connectivity. The plastic enclosure provides electrical insulation and light-weight installation. Supplied as a pack of two, the set allows simultaneous installation in multiple locations or parallel control of two separate circuits. Its voltage range supports standard residential and commercial AC mains.

Suitable for

• Remote switching of indoor lighting (LED, halogen, incandescent where compatible)
• Automation of small appliances such as fans, pumps or heaters with compatible ratings
• Integration into home automation scenes and schedules
• Retrofit projects to add wireless control behind existing wall switches

Key specifications

• Operating voltage range: 110–240 V AC
• Maximum switching voltage: 240 V
• Typical power consumption (idle): 1.2 W
• Housing material: plastic (insulated enclosure)
• Dimensions (each module): 42 × 16 × 37 mm
• Pack quantity: 2 modules

How to use

Install each module in a suitable junction box or behind an existing wall switch following local electrical regulations. Connect the live, neutral and switched load conductors according to the wiring diagram supplied by the manufacturer, and ensure the circuit is powered off during installation. Once wired, power the module and follow the device pairing process via the manufacturer’s mobile application or supported integration protocol to add the switch to the wireless network. Configure on/off schedules, scenes or triggers in the app or automation controller as required.

Recommendations

Verify the load type and current requirements of connected appliances to ensure they do not exceed the device’s switching capabilities. Use in dry indoor environments and mount within standard junction boxes to maintain ventilation and prevent overheating. For installations involving high inrush currents (for example motors or certain LED drivers), consult technical documentation or use an appropriately rated relay or contactor in combination with the module.