Shelly Pro 4PM Quad Relay Switch and Bi-directional Motor Control and Power Monitoring

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Professional 4 Channel DIN Rail Relay Switch with WiFi, LAN and Bluetooth Connection

Professional 4 channels relay with WiFi, LAN, and Bluetooth connection, suitable for home and facility automation with remote control and precise power management. DIN rail mountable inside a breaker box. Enhanced safety features and compatible with most used home automation platforms.  

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.

Shelly Pro 4PM

  • LAN, WiFi, and Bluetooth connection
  • 4 outputs, 16A each. Total device maximum of 40A
  • Precise power metering
  • Overpower and overvoltage protection of the load.
  • DIN rail mountable
  • 1.8-inch color screen with navigation keys


Shelly Pro 4PM is a one-phase, 4 channel smart relay equipped with LAN, WiFi and Bluetooth connectivity, and precise power metering. Shelly Pro 4PM can be powered by 110-240V AC and installed inside the breaker box, allowing full smart automation from one centralized place. Enhanced with temperature and overload protection, Shelly Pro 4PM is a reliable device for a wide variety of applications. Use it in virtually any business facility to control and monitor the consumption of appliances, manage your costs, and enjoy endless functionalities support by using your own custom scripts.

Connectivity Working on 2.4 GHz WiFi 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 WiFi and LAN usage, as back up when needed.


  • Temperature protection
  • Temperature protection
  • Temperature protection
  • Flame Retardant (V-0)


  • HTTP/HTTPS webhooks
  • Sunrise/Sunset actions with offsets
  • Weekly Scheduling
  • Custom scripts(mJs)
  • Grouping
  • Scenes
Supported Platforms
  • Amazon Alexa
  • Google Home
  • Yandex Alica
  • Smart Things
  • MQTT


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