Welcome to the Schneider Electric Website

Welcome to our website.

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais

Harmony SCU

HMI controllers from 3.5" to 5.7" color screens with 16/Os in Ø 22mm mounting system

Part of Harmony

The Harmony SCU (formerly known as Magelis SCU) is designed to operate with EcoStruxure™ Machine Expert. It delivers adequate functionality for control of small machines and simple processes, while saving up to 30% in installation and ownership costs

Harmony SCU
  • Features

    The integrated design of Harmony SCU delivers maximum functionality while keeping installation easy. Designed for small machines and simple processes control, its state-of-the-art display provides clear readability.

    You save time

    • Installation is easy, cabling is simple with:
      • the 22mm mounting system
      • the rear module snapped on a DIN rail via an ingenious remote cable, or attached to the display

    You save costs

    • Harmony SCU consists of :
      • A modular STU screen, and the flexible mechanical mounting system 22mm hole
      • A rear module with cheap and powerful electronic embedding I/O and full ste of communication ports.

    Less wire is necessary, and the cost of Harmony SCU is lower than the usual equipment for simple machines consiting of a PLC + a display

    You save space

    • Harmony SCU helps you to save the space that is normally reserved for a PLC, making it suitable even for installations with very limited space


    Harmony SCU: the new generation of small HMI controllers
    > State of the art display
    > Rich communication capabilities
    > Single software suite EcoStruxure Machine Expert
    > Easy machine maintenance and upgrade


    • Small machines
    • HVAC
    • Pumping
    • Packaging

Can we help you?

Our support centre contains FAQs, CAD files, catalogues, brochures, substitution information and more. If you can't find what you need, just have a chat with us.

Approved partners

Browse our network of approved partners ranging from panel builders to system integrators or home automation specialists to power integrators.