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AutoCT is shorthand for Automatic Containment sizing. 

Our Autodesk® Revit® add-in automatically routes electrical circuits from start to endpoint along cable tray routes and automatically checks the containment size.


How does the software work?

Using filters created in the model, the software finds the nearest appropriate cable containment to both the start and end of the circuit and finds the path between them. 

The cable sizes, cable types, configuration, spacing, etc. can be imported from the model or entered in our cable schedule. 

The software gathers the calculated results and displays a 3D view of the fill factors for each containment - easily showing problem areas.


Key Features:

  • The calculation is fast and can easily update with circuit or model changes.
  • The software models circuits as accurately as possible - with options for different wire types, circuit configurations, grouping, and methods of support.
  • Works with unconnected cable tray networks - The software can find the nearest appropriate cable tray type and continue its calculations.
  • Error checking is built-in - unconnected networks, zero diameter circuits, circuits with no panels, circuits with no filters, etc.
  • Update Circuit Path Features automatically re-routes the Revit circuit path to follow the cable trays
  • Check cable bending radius creates a 3D view of all the cable tray fittings in the model and checks there are no tight corners!
  • Check weight loading outputs a 3D view of the cable containment weight throughout the model in order to verify the weight vs. structural design


Coming Soon:

Lots of features are on the way. Please get in touch to see what's upcoming and promote the features you want to see!

Informazioni sulla versione

Versione 1.4.0, 12/05/2021
AutoCT Version 1.4 – May 2021 Release Latest Features: • Selection filters can now be used to define specific routes • Selection filters can now be used to define specific routes • 3D view of all circuits can now be created • Export Schedule of containment now available o Export Circuits Per Containment o Export Containment Per Circuits • Error export feature o Export an error list to excel when calculating • Bug Fixes: o Custom filters error fixed o MEP fabrications now work with the routing calculation o Cable tray fitting size parameter error fixed o AutoCT now backwards & forwards compatible with other versions o Clear button now clears all calculated results o Check for shared parameters name already in use o Review & calculate showing circuits other than power o Update to containment weight loading filters o Check for duplicated/ copied containment and null values on opening o Amalgamate error messages ensure no error shown twice o Update to check for redundant & changed circuits and containment on opening o “Import wire types” no longer overwrites all wire types

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  • Unsupported?
    Clayton Daley | gennaio 10, 2022

    On paper, this is exactly what we're looking for, but we're having some issues with the behavior of various paths.  Also note that 2022 isn't supported.  Unfortunately, no one seems to respond to any of the support channels we could find.

  • Circuit Path
    Carlos García | dicembre 09, 2020

    Hi Paul!

    The probles is that it does not make the way through the cable tray well. There are elbows that take them wrong and paths that do not process well.

    It chooses the shortest path through the cable tray, but sometimes it jumps from one tray to another without going all the way through the cable tray.

    I would pass a screenshot but it can´t be done.

    Paul Flanagan (Autore) | dicembre 21, 2020

    Hi Carlos, We appreciate you taking the time to review the product. Could you please provide a sample Revit model along with the screenshots in your email in order to provide supoort? Thank you

    Carlos García | maggio 14, 2021

    I have just been doing some test, and in principle with the last update it works excellent! Just congratulate you on your great work and I hope we continue to see graet apps like this one! Regards and thank you very much!

  • Question
    Артем Репкин | novembre 06, 2020

    How is information collected about cables that are laid in the cable tray?

    Paul Flanagan (Autore) | novembre 09, 2020

    Hi, The software uses electrical power circuits within revit in order to route along the cable trays. Filters are used in revit to distinguish what circuits can run on each containment. For example a sub mains cable from an Main distribution board to a sub panel can be assigned a filter to use only cable ladder. Cable types are defined in the software (under the "wire types" tab) and method of installation is defined in the "circuits" tab. I hope this is clear. If you need any further information please let me know.

  • A real time saver!
    Gianfranco Palumbo | dicembre 28, 2019

    Great app

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