Shelly Pro 4PM

£104.99 Excl. VAT £87.49

In stock

4 channel DIN rail relay switch with WiFi, LAN and Bluetooth connection

Professional DIN rail mountable 4 channel relay with Wi-Fi, LAN, and Bluetooth connection. Suitable for home and commercial facility automation with remote control and precise power management. Enhanced safety features and compatible with the many common home automation platforms.

Enhanced with temperature, overpower, and overvoltage load protection, the Shelly Pro series is designed to be installed inside the breaker box (DIN rail). Allowing complete smart automation with no additional cables or wiring, the Shelly Pro series is perfect for homes, offices, stores, business, and manufacturing facilities, as well as new buildings.

  • LAN connectivity

    LAN connection for high security and reliability. Simultaneous Wi-Fi and LAN connectivity as backup, when needed.

  • Wi-Fi connectivity

    Supports 2.4 GHz Wi-Fi connectivity in both, Access Point (AP) mode and Client Mode (CM) simultaneously.

  • Bluetooth connectivity

    Add devices quickly and easily to the Shelly Cloud app, using the Bluetooth connection.

  • Scripting for custom automation

    Get enhanced functionalities and additional processes for a specific integration or function you have in mind.

  • Safety and Protection

    Temperature, overpower and overload protection, and flame retardant.

  • Power metering with data storage

    Precise power monitoring of each channel.

  • Extremely fast processor

    For immediate command execution and notification.

  • Enhanced security

    MQTTS, WSS, and TLS support with custom certificates for a broad range of use cases.

  • Improved API interface

    A broad range of cloud connections and local integrations.



  • Power supply AC 110-230V ±10%, 50/60Hz
  • Power supply DC No
  • Maximum load 40A, with up to 16A per channel
  • Electrical consumption < 4W


  • Dry contacts No
  • Roller shutter mode No
  • Device temperature protection Yes
  • Overload protection Yes
  • Power measurement Yes
  • HTTP/HTTPS webhooks Yes
  • Custom scripts(mJs) Yes
  • Channels 4
  • Operational temperature -20°C to +40 °C


  • Ethernet Yes
  • Wi-Fi Protocol 802.11 b/g/n
  • Wi-Fi Radio frequency 2412 - 2484 MHz
  • Wi-Fi Radio signal power 1mW
  • Operational range (depending on local construction) • up to 50 m outdoors
    • up to 30 m indoors
  • Bluetooth Yes


  • (H x W x L) 90 x 52 x 57 mm

How it works?

Download the Shelly Cloud application on your smartphone or tablet
Connect to your Wi-Fi router
Place the device wherever you wish


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