Shelly 1PM Wi-Fi Relay Switch



The Shelly 1PM WiFi Relay Switch module can control 1 electrical circuit up to 3.5 kW. It is intended to be mounted behind power sockets and light switches or other places with limited space. Shelly may work as a standalone device or as an accessory to another home automation controller.


With power monitoring.

Shelly 1PM - With power monitoring
Shelly Wi-Fi

No HUB required – Connect Shelly 1PM directly to your Wi-Fi router.

Shelly - Control remotely
Control remotely

Control lighting and appliances at home, no matter where you are in the World.

Shelly 1 - Highly compatible​
Highly compatible
Control with your voice. Compatible with Amazon Alexa and Google Assistant.
Wide range of voltage support

Shelly 1PM supports low voltage 24-60V DC as well 240V AC on/off control..

Sunrise/Sunset schedules

Shelly 1PM can automatically follow the sunrise and sunset and control your lighting accordingly.

Custom schedules
Choose a time and set your lighting to turn on/off precisely when you want it to.
Shelly 1PM - Overheat Protetion
Overheating protection
Internal temperature sensor for overheating protection with automatic cut-off.
Shelly 1PM - Power Monitoring
Power metering
Precise monitoring and measurment of your appliances or lighitng power consumption.
Shelly 1PM - Small


Intelligently designed to fit in small spaces and behind wall switches. Shelly 1PM is smaller than two cookies stacked together.

Appliance control.

Shelly 1PM works with a wide range of AC and DC power so you can control a wide range of devices and appliances.

Lighting control.

Shelly 1PM makes it easy to turn any lighting into smart lighting… and maintain wall switch control.

Shelly 1 - Lighting

Overload protection.

If Shelly 1PM detects the internal temperature or attached power consumption is too high – it will turn off automatically.

Power monitoring.

Know your spend – Shelly 1PM will precisely monitor and measure the connected loads power consumption.


No more forgetting to turn appliances or lighting off. The integrated countdown timer can switch them off for you.

App Control.

With the best cloud service in the World, user-friendly interface, scenes, bulk control and much more… the Shelly Cloud application allows you to control your home from anywhere. Each Shelly can be integrated and works with all other Shelly devices in the Shelly app.
Shelly 1 - App Control

Voice control.

Shelly devices are fully compatible with Amazon Alexa and Google Home.
“Hey Google, turn on the loungeroom light.”
“Alexa, turn off the theater projector.”

Flexible control.

Shelly Wi-Fi devices can work without a hub… but they are also compatible with…

Full control.

Shelly is an open platform. With the embedded web server and HTTP commands, Shelly can be made compatible with your home automation systems and projects… securely and easily.

Shelly - Developers

The finer details


Power supply AC: 110-230V ±10%, 50/60Hz
Power supply DC: 24 – 60V
Maximum load: 16A
Device power consumption: < 1 W

Special functions

Dry contacts: No
Roller shutter mode: No
Device temperature protection: Yes
Overload protection: Yes
Power measurement: Yes
Working without a neutral wire: No


Control channels: 1 On/Off Relay Channel
Operational temperature: 0°C to + 40°C
Intelligent On/Off: Yes
Local and smart control: Yes
Sunrise/Sunset timer: Yes
Built-in weekly scheduler: Yes


Wi-Fi protocol: 802.11 b/g/n
Radio frequency: 2400 – 2500 MHz
Radio signal power: 1mW
Wireless range: up to 50 m outdoors and up to 30 m indoors (depending on the building materials)


Size: 41mm x 36mm x 17mm

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