Free Trial Download and try today

Main Disconnect Type Formula

Posted on February 16th, 2021. Last updated on January 17th, 2024.

Q: Is there a shared parameter I can use to write Revit formulas, such as if(), based upon a panel’s main disconnect type?

A: The DMEN_Panel_MainDisconnectType shared parameter returns a numeric value, which can be used in Revit formulas, based upon the main disconnect type:

  • MLO/Main lugs only = 0
  • MCB/Breaker = 1
  • FS/Fused switch = 2

Example Formula

Some engineers prefer that their panel schedules list the size of a breaker or fused switch main disconnect, or the bus size if the panel is main lugs only. To do this, follow these steps while editing the panel schedule template:

  1. Select where you want the value to appear on the schedule and run the Revit Calculated Value command. A dialog box will open.
  2. Enter the following values (enter anything for the Name field):
    • Discipline: Common
    • Type: Text
    • Formula: if(DMEN_Panel_MainDisconnectType = 0, DMET_Panel_BusAmps, DMET_Panel_MainDisconnectTripSize)
  3. Press the OK button to insert the formula on the schedule.

You can also create a shared parameter that uses the formula above, add the parameter to the panel family, and insert it on the panel schedule template.

Related Articles

Filter by
Post Page
ElectroBIM ElectroBIM General Training Recording Video ElectroBIM Training ElectroBIM Customization
Sort by

Single-Line Diagram Graphics Disconnected From the Model

Single-line diagram items can lose their links to the Revit model if they are copied or moved. This article details the solutions and common causes.


Training Recording: Customizing Revit Panel Schedules

Walk through panel schedules in Revit. Learn how to customize them with ElectroBIM shared parameters.


Training Recording: Single-Line Diagram Graphic Families in Revit

Learn how to get the most out of your single-line diagram graphics.


Training Recording: Transformer OCP Sizes

This training video shows you how to configure OCP sizing for transformers in Design Master Electrical RT 2.0.


Electrical Design Basics in Revit

If you’re thinking about moving your electrical workflow to Revit, here are the concepts you’ll need to learn before you get started.


Training Recording: Electrical RT Mailbag October 2019

This training video teaches you how to create vertical bus layouts, disable voltage drop warnings, and more in Design Master Electrical for Revit.