Supply Details - Loads Assigned Tab - MCCs and Switchboards
- Last UpdatedJul 23, 2025
- 3 minute read
Use this tab to define the busbar loads of a supply.

Note:
No fields or data will be displayed on this tab until the supply is saved.
The tab includes a sub-tab for each busbar of the MCC or distribution board:
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If the project is configured to have only horizontal busbars, the tab will be as laid out.
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If the project is configured to include horizontal busbars with vertical busbars, the tab will be laid out.
Note:
Whether or not a project includes vertical busbars is set on the Busbar Tab of the Options window.

Loading Scenarios
In the Loading Scenarios section of the tab displays the demand details for each loading scenario. Refer to Supply Detail Window Calculations for further information.
The loading scenario that has its Primary checkbox checked is the one currently in effect for the project.
To view load summary details without having to scroll horizontally, double-click on any field. The Horizontal Busbar or Vertical Busbar window (as appropriate for the busbar type) is then displayed (both windows are functionally identical):

Note:
Loading scenarios are created and edited and the "primary" scenario selected using
the Loading Scenarios window, accessed from the Project tab. Refer to Loading Scenarios for details.
Busbars
By default, new equipment has a single busbar and no vertical busbars. If another
horizontal busbar is required, click the
button. Another sub-tab is added to the Loads Assigned tab. For example:

To add a vertical busbar to a horizontal busbar, select the tab of the horizontal
busbar, and click the
button under the Vertical Busbars heading.
A sub-tab is added for the vertical busbar under the Vertical Busbars heading of the selected horizontal busbar. For example:

In the above example, the Vertical 3 vertical busbar has been added to the Busbar 1 horizontal busbar.
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When a vertical busbar is created, it is assigned to a default "Connector" element. This is created within an automatically generated compartment which is added to the vertical busbar. The default element can subsequently be replaced in the Compartments tab.
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Each busbar is automatically assigned a default name when it is created, for example, Busbar 2, Vertical 3. This is displayed as the title of the busbar’s tab, and in the Busbar Name field when that busbar is selected.
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When a busbar is selected, it’s type (Horizontal or Vertical) is displayed in the Busbar Type field.
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If required, change the Diversity Factor values from their default settings.
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Use the
buttons to remove a selected busbar. If there is only one horizontal busbar it cannot
be removed.
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Four further sub-tabs, Loads, Details, Output Voltages and Properties, are displayed at the bottom of the window under the Busbar Information heading. They display data for the currently selected busbar.