Junction Box
Place junction box symbols at distribution points where cables branch or multiple fixtures connect to the main run.
The Junction Box tool places a standardized distribution symbol at any point in the 2D lighting plan where cables branch, splice, or require a weatherproof connection enclosure. It is a documentation element — not a light source — so it appears in plan view and exported deliverables but does not emit light in the 3D or photoreal view. Use it alongside the Cable Run, Lighting Transformer, and Lighting Controller tools to build a complete, installer-readable lighting circuit. Specifying the connection count and IP rating directly on the symbol eliminates ambiguity during installation and commissioning.
Inspector fields
Name — a label for this junction point. Connection count — the number of outputs. Product — optional product reference.
Click to place the symbol
Move the cursor to the location on the canvas where cables branch or a protected splice connection is required, then click to drop the junction box symbol at that point. Press Esc to exit placement mode. Reselect the tool to place additional boxes.
Plan your infrastructure layout top-down: place the transformer and junction boxes first, then draw cable runs between them. This workflow keeps each branch traceable back to its source before any fixture placement begins.
Name the junction box
With the junction box selected, the Inspector panel opens on the right side. Enter a unique identifier in the Name field at the top — for example, "JB-01" or "Zone A Branch". A clear naming convention makes it easy for installers to cross-reference symbols with your written specification.
Record specification details
Expand the Details section in the Inspector. Set the Connections field to the number of cables entering and leaving the box. Choose an IP Rating from the dropdown (options range from IP44 to IP68) to specify the enclosure's weatherproofing standard for the installation environment. Fields left blank are omitted from exported documentation.
Place infrastructure on a dedicated layer
Assign junction boxes — and your other infrastructure symbols — to a dedicated layer using the Layer picker in the Inspector or the Layers panel. You can then show that layer on installer drawings and hide it on client-facing presentation views.
Connect cable runs to the box
Switch to the Cable Run tool and draw routes from the transformer or other junction boxes to this symbol, and onward to the fixture groups it serves. Using snapping, you can start or end a cable run exactly at the junction box anchor point to produce a clean, connected schematic.
Place junction boxes at logical service-access positions — near walls, existing conduit entry points, or under paving edges — so maintenance crews can actually reach them after installation. Document service access constraints in the Notes field.
Group all infrastructure entities (transformers, junction boxes, cable runs, controllers) onto a dedicated layer. You can then show that layer on installer drawings and hide it on client-facing presentation views.
Frequently Asked Questions
Does the junction box emit light in the 3D or photoreal view?
No. The junction box is a documentation symbol for the electrical plan only. It is visible in 2D plan view and appears in exported deliverables, but it produces no light and has no 3D geometry in the perspective or photoreal views.
Why don't I see the Connections or IP Rating fields in the Inspector?
These fields live under the Details section. Make sure the junction box entity is selected (not a cable run or fixture), then click the Details heading in the Inspector to expand it. If the Inspector is not visible, check that the right-hand panel is open.
How do I show junction boxes only on the installation drawing and not the client presentation?
Place all infrastructure elements (junction boxes, cable runs, transformers) on a dedicated layer using the Layers panel. Toggle that layer on when exporting or printing the installation sheet, and off for client-facing views or PDF presentations.
What IP rating should I specify?
IP44 is the minimum for above-ground outdoor use in a sheltered position. IP65 or IP67 suits exposed locations or boxes that may be splashed. IP68 is required for boxes buried underground or submerged — for example, in a pond surrounds circuit. Always confirm the rating with the specified enclosure manufacturer.
Can I move a junction box after placing it?
Yes. Select the junction box with the Select tool and drag it to a new position. You can also type an exact coordinate into the Position field in the tool panel when first placing the box.