# Double junction of conductors Canonical URL: https://eloragrid.ai/symbols/iec-double-junction Publisher: Elora Grid Updated: 2026-10-28 Lookup label: - Drawing use: Schematic, SLD Reference families: IEC ## Symbol convention Convention: IEC Form: Offset double junction Independent IEC-context illustration of a drafting convention; not certified IEC geometry. Four conductors joined using two offset T-junctions rather than one crossing dot, to avoid confusion with a crossing. ## In plain English ### What does Double junction of conductors mean? A four-way connection drawn as a cross with a single dot can be misread if the dot is lost in printing or scanning. The double junction draws the same connection as two T-junctions offset a short distance along the line, each with its own dot, so that the connection survives poor reproduction. ### A simple example Electrically the double junction is the same node as a dotted cross. It does not represent two separate joints. Drafters use it to make the intent robust, and readers should not count it as an additional connection point or a different wire number unless the drawing shows one. ### What the drawings help you do Treat the two offset tees as one electrical node. Confirm wire numbers are the same on all four branches. A double junction is one node drawn as two offset tees; an unconnected crossing has no node at all. ### This particular reference Four conductors joined using two offset T-junctions rather than one crossing dot, to avoid confusion with a crossing. A double junction is one node drawn as two offset tees; an unconnected crossing has no node at all. ### Terms - Terminal: An identified point where a conductor connects. - Schematic: A drawing showing function and connections rather than physical appearance. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Wire connection dots, crossing gaps and loops](https://help.autodesk.com/cloudhelp/2020/ENU/AutoCAD-Electrical/files/GUID-936BB8A9-9C01-4AC6-B833-CB97700A7203.htm) - [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm) ## What it represents A four-way connection drawn as a cross with a single dot can be misread if the dot is lost in printing or scanning. The double junction draws the same connection as two T-junctions offset a short distance along the line, each with its own dot, so that the connection survives poor reproduction. Electrically the double junction is the same node as a dotted cross. It does not represent two separate joints. Drafters use it to make the intent robust, and readers should not count it as an additional connection point or a different wire number unless the drawing shows one. ## How to read it - Treat the two offset tees as one electrical node. - Confirm wire numbers are the same on all four branches. ## Information to show or reference - Use offset tees instead of dotted crosses for four-way nodes. - Keep the offset small enough to read as one node. - Number all four branches consistently. ## Important distinction A double junction is one node drawn as two offset tees; an unconnected crossing has no node at all. ## Facts - Graphic cue: Two dotted tees offset along a conductor - Electrical meaning: One node, same as a dotted four-way cross - Preview: Original educational illustration; consult the publisher and applicable standard for the exact graphic ## Public references - [Wire connection dots, crossing gaps and loops](https://help.autodesk.com/cloudhelp/2020/ENU/AutoCAD-Electrical/files/GUID-936BB8A9-9C01-4AC6-B833-CB97700A7203.htm) — Autodesk. Public guidance on connection dots and crossing display. - [IEC-60617 symbol preview directory](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm) — Autodesk. Public directory of IEC-oriented symbol families. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.