Altium Designer Documentation

Net Label

Created: June 9, 2017 | Updated: June 19, 2017

The Net Label dialog.


This dialog allows the designer to specify the properties of a Net Label object. As well as providing a human-friendly identifier for a net, a net label allows you to connect points on a circuit without actually physically wiring them together.

For information on how a placed net label object can be modified graphically, directly in the workspace, see Graphical Editing.


The Net Label dialog can be accessed prior to entering placement mode, from the Schematic – Default Primitives page of the Preferences dialog. This allows the default properties for the net label object to be changed, which will be applied when placing subsequent net labels.

During placement, the dialog can be accessed by pressing the Tab key.

While attributes can be modified during placement, bear in mind that these will become the default settings for further placement unless the Permanent option on the Schematic – Default Primitives page of the Preferences dialog is enabled. When this option is enabled, changes made will affect only the object being placed and subsequent objects placed during the same placement session.

After placement, the dialog can be accessed in one of the following ways:

  • Double-clicking on the placed net label object.
  • Placing the cursor over the net label object, right-clicking and choosing Properties from the context menu.
  • Using the Edit » Change command and clicking once over the placed net label object.


  • Color - click the color sample to change the color used for the label's text, using the standard Choose Color dialog.
  • Location X/Y - the current X (horizontal) and Y (vertical) coordinates for the connection point of the net label (its electical hotspot). Edit these values to change the position of the net label in the horizontal and/or vertical planes respectively.
  • Orientation - specify the orientation of the net label, counter-clockwise in relation to the horizontal. Options available are: 0 degrees, 90 degrees, 180 degrees, 270 degrees.


  • Net - this field shows the name of the net associated with the net label. Placing a net label onto an electrical object assigns that object to the net specified here. Either enter the name of the required net directly, or use the field's associated drop-down to access a list of all currently defined names from all other net labels and ports defined on the active schematic sheet.
If the Net property of the net label is entered before it is placed and the value entered has a numeric ending, each subsequent net label will auto-increment this numeric value. This behavior is configured in the Auto-Increment During Placement options on the Schematic - General page of the Preferences dialog. For net labels only the Primary field applies, the Secondary field applies when the object has multiple fields, such as a Pin.
  • Font - this control serves two purposes. Firstly, it reflects the currently chosen font – applied to the text for the associated net name - in terms of Font Name, Font Size and Font Style. Secondly, when clicked it provides access to the standard Font dialog, from where to change the font as required.
Effects are also displayed when enabled (Strikeout, Underline). If Regular is used for the font's style, this will not be displayed visually in the control's string.
  • Locked - enable this option to protect the net label from being edited graphically.
If attempting to graphically modify an object that has its Locked property enabled, a dialog will appear asking for confirmation to proceed with the edit. If the Protect Locked Objects option is enabled on the Schematic – Graphical Editing page of the Preferences dialog, and the Locked option for that design object is enabled as well, then that object cannot be selected or graphically edited. Double click on the locked object directly and disable the Locked property, or disable the Protect Locked Objects option, to graphically edit the object.


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