Shelly Pro 3 WiFi + Ethernet 3-gang smart relay switch with DIN-rail support

Last 4 pcs in stock
Shelly Pro 3
Communication protocol:
Wi-Fi, Bluetooth, LAN (Ethernet)
Mobil App:
Works without Bridge/Hub/Gateway:
Works without neutral

Usually, only the phase wire is connected in plain light switches. As a result, replacement is only required with light switches or switch relays that do not require a neutral wire. These are also called one or two wires (incoming phase + outgoing phase).

If possible, use switches that require zero because they are more stable and compatible with any lamp and consumer. These are also called two or three wires (zero + incoming phase + outgoing phase).

No (neutral wire required)
Number of controllable circuits:
Consumption metering:
Max. Current (A = Ampere) / Channel:
16 A
REST API connection:
Number of controlled phases:
3 phase
Contact type:
Dry Contact Relay
Switch relay placement:
DIN rail
Temperature sensor input:
12 months
Expected packing date

If the product is in stock and you order it by noon today, we will hand it over to the courier service for delivery the next day or the next working day on weekends and public holidays. If the product is not in stock, the packaging time may increase by 2-3 working days.

I don´t want extra services.
Buy-Back Guarantee (90 days) INFO +4.89 € / pcs
Software Update to the latest version! INFO +4.89 € / pcs
RRP: 73.51 € (excl. VAT) 

This is the last retail selling price recommended by the supplier.

69.9 € (excl. VAT)
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3 channels DIN rail relay switch with Wi-Fi, LAN and Bluetooth connection
Professional 3 channels relay with Wi-Fi, LAN, and Bluetooth connection, suitable for home and facility automation with remote control. DIN rail mountable inside a breaker box. Enhanced safety features and compatible with most used home automation platforms.

Shelly Pro 3

  • LAN, Wi-Fi, and Bluetooth connection
  • 3 output, 16A each. Total device maximum of 48A
  • Dry contact
  • DIN rail mountable
  • 3 phases control


Supreme home and facility automation with Shelly’s professional line of smart switches
Enhanced with temperature, overpower, and overvoltage load protection, Shelly Pro series is designed to be installed inside the breaker box (DIN). Allowing full smart automation with no additional cables or wiring, Shelly Pro line is perfect for homes, offices, stores, business, and manufacturing facilities, as well as new buildings.

DIN rail mountable
The Shelly Pro Line is intended to be installed inside the breaker box and designed to meet the global DIN rail standardization. That makes it suitable for all kinds of buildings and ensures easy installation with no additional components needed.




  • Working on 2.4 GHz Wi-Fi network, supporting Access Point (AP) and Client Mode (CM) options
  • Now, add device fast and easy via Bluetooth connection, using Shelly Cloud App
  • LAN connection for high security and reliability. Simultaneous Wi-Fi and LAN usage, as back up when needed


  • Temperature protection
  • Overpower protection (PM devices)
  • Overvoltage load protection (PM devices)
  • Flame Retardant (V-0)


  • HTTP/HTTPS webhooks
  • Sunrise/Sunset actions with offsets
  • Weekly Scheduling
  • Custom scripts(mJs)
  • Grouping
  • Scenes

Voice Assistants

  • Amazon Alexa
  • Google Home
  • Yandex Alica

Supported Platforms & Protocols

  • Amazon Alexa
  • Google Home
  • Yandex Alica
  • Smart Things
  • MQTT
  • Home Assistant
  • REST
  • Homey
  • Hubitat
  • Hoobs
  • Symcon
  • Home Seer
  • Domoticz
  • Nymea
  • Open HAB


Enhanced safety features
Safety is our top priority! Enhanced safety features make Shelly Pro devices suitable for every environment

  • Overheating protection 
    In case of unsafe temperature levels or rapid temperature increase, device switches off the outputs and sends notification. Internal temperature sensor is measuring the heat every 100 ms.
  • Overpower protection
    Detected overpower will lead to outputs switch off by the device and it will immediately send notification. Overpower protection feature protects the device and other electrical equipment from potential damage.
    *Feature is available only for power metering enabled devices
  • Overvoltage protection
    Voltage peaks could be dangerous for electrical appliances and machines. To avoid damage to the electrical appliances the device switches off the outputs when overvoltage peaks are detected and immediately sends a notification.
    *Feature is available only for power metering enabled devices
  • Flame Retardant (V-0)
    All Shelly Pro components are produced with flame-resistant materials and will keep their construction even when exposed to high levels of heat.



HTTP/HTTPS webhooks for quick connection
Enhanced with HTTP/HTTPs webhooks, Shelly Pro line can easily connect with, notify or control another compatible equipment or 3rd party automation system.

Smart actions that follow the Sunrise/Sunset
Shelly Pro line can switch on/off the power, depending on the Sunset and Sunrise hour, which makes it perfect for dynamic control of the electrical equipment depending on the season.

Automation with weekly scheduling
Shelly Pro line allows you to set up to 20 actions based on your daily or weekly schedule with no need for an external hub or server.

Scripting for custom automation
Shelly Pro line fully supports mjS scripting, allowing customers to create own features and functionalities! Shelly Pro line devices allow multiple scripts to be executed together, depending on various triggers as input/output status, sensor data or WLAN requests.


The best solution for new home buildings and business facilities

Automation based on your needs with no additional cables
Shelly Pro line allows you full smart automation from the breaker box with minimized additional cables or wiring required. That makes it the perfect solution for new buildings and manufacturing facilities, which you can automate based on your or your business’s needs.

Precise power measurement for detailed control over electricity costs
Shelly Pro line is equipped with ESP32 processor, providing immediate notifications and real-time power consumption measurements. The precise power metering features of the PM devices will keep you informed about the electricity consumption of each connected device, making it possible to analyze the data and help you cut electricity costs.


Shelly Pro 3

  • Dry contacts
  • Wide range of voltage support
  • DC switching
  • 3-phasе control
  • LAN, Wi-Fi, and Bluetooth connectivity


Shelly Pro 3 is a three-phase, 3-channel relay supporting up to 48A total output and 16A per channel. It’s equipped with potential-free outputs (dry contacts) and can switch 3 completely independent circuits, including 3-phase ones. Shelly Pro 3 is enhanced with scripting functionalities, allowing users to set custom automation scenes based on various occurrences such as weather forecast, wind force forecast, etc. Enjoy easy office, home, and facility automation!


With the power to control and Shelly Pro 3 can work standalone or be complementary to any existing automation project. Here are just a few applications worth considering for your home, business facility, or office building:

Lights control
Control and monitor 3 individual circuits on different phases.

Garage door control
Control and monitor garage doors from anywhere.

3-phase heater automation
Suitable for industrial heaters, both air, and water.

3-phase pumps control
Control and monitor 3-phase induction motors.

3rd party DC systems control
Control low voltage DC systems by dry contact relays.


Shelly devices can work together and execute an endless amount of scenes & scenarios triggered by various occurrences, schedules, scripts, etc. These scenes and scenarios can lead to higher efficiency, better security, and a comfortable daily routine created by you! Here are just a few possible examples:

Shelly devices can perform any scenario set by you for the nighttime, no matter if its your home, office, or any other business facility.

  • Shelly Pro 2 Turns off lights downstairs. Turns on porch lights.
  • Shelly Pro 2PM Brings roller shutters/blinds down.
  • Shelly Motion Sends command to Shelly Dimmer2 to turn on lights when motion is detected.
  • Shelly Dimmer2 Turns on lights dimly until 6 am. Once motion is not detected for 10 secs, the lights turn back off.
  • Shelly Pro 4PM Arms the security system.
  • Shelly TRV Brings room temperature down to 16°C in non-occupied rooms.
  • Shelly Pro 1 & 1PM Turns off connected sockets/appliances.

Create the perfect morning scenario based on your daily schedule and needs using any combination of Shelly devices.

  • Shelly Pro2PM Opens curtains/blinds at 7 am.
  • Shelly Pro 2 Turns on the lights downstairs.
  • Shelly Pro 1 Turns on water heater at 6am to be ready for your morning shower.
  • Shelly Dimmer2 Slowly Ramps up the bedroom lights
  • Shelly Pro 1PM Turns on floor heating at 6:30am.
  • Shelly TRVs Turn heating on at 6am to prepare the house.
  • Shelly Pro 4PM Disarms the security system at 6:30 am.
  • Shelly Pro 2PM Opens cupboards for tea/coffee once kettle is done heating.

Prepare your meeting room for presentation quickly by using Shelly!

  • Shelly Pro 2PM Brings the blinds or roller shutters down.
  • Shelly Pro 2PM Brings the projector screen down.
  • Shelly Dimmer2 Dims the lights to your desired brightness or turns them off.
  • Shelly Plug S Projector turns on.
  • Shelly Pro 1PM HVAC system (Heating, ventilation, air conditioning)


Highly compatible
Use your preferred voice assistant to control Shelly Pro devices. Shelly Pro series is compatible with most popular voice assistants.

No hub required
Shelly Pro devices can be controlled directly and without a hub through your smartphone with Shelly Cloud
App. Manage and control the all smart devices in your home, set quick profiles, scenes, schedules, and adjust settings wherever you are through the Cloud access, or only on the local network!


Many homes and buildings use more energy than they need. That leads to inefficiencies, energy waste, and eventually increased monthly bills.
Shelly home and facility automation solutions can help you reduce the energy waste and your monthly bills by up to 30% through a 3-step cycle of energy efficiency.

Supported platforms
Use devices with your one local or centralized server - you can keep them fully isolated from public Internet network. Shelly Pro series is compatible out of the box with Home Assistant. All other home automation solutions can monitor and control Shelly Pro devices using CLOUD, REST, MQTT, and UDP protocols. Shelly devices can also be grouped with all Shelly devices, as well as other smart home devices on the home network.

  • amazon alexa
  • Google Home
  • MQTT
  • SmartThings
  • Home Assistant
  • REST
  • Homey
  • HomeSeer
  • openHAB
  • ioBroker
  • Hubitat
  • Domoticz
  • nymea




  • Power supply AC: 110-240V, 50/60Hz
  • Maximum load: up to 16A per channel with up to 48A for the whole device
  • Channels: 3 Channel


  • Roller shutter mode: No
  • Device temperature protection: Yes
  • Overload protection: No
  • Power measurement: No


  • HTTP/HTTPS webhooks: Yes
  • Custom scripts (mJs): Yes
  • Operational temperature: -20°C to + 40 °C
  • Device power consumption: < 3 W
  • Intelligent On/Off: Yes
  • Local and remote control: Yes
  • Sunrise/Sunset: Yes
  • Weekly Schedule: Yes
  • UL Listed option: No


  • Wireless: Yes
  • Max RF output power: 13.35 dBm
  • Wi-Fi Protocol: 802.11 b/g/n
  • Wi-Fi Radio frequency: 2412 - 2483 MHz
  • Wi-Fi Range: Up to 30 m indoors and 50 m outdoors (Depends on local conditions)
  • Bluetooth: Yes
  • Ethernet: Yes


  • Size: 96 x 53 x 59 mm
Quantity discount
QuantityDiscountProduct price
1 pcs more than less than 5 pcs - 88.77 €/pcs
5 pcs more than   5 % 84.33 €/pcs
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