Junction Box

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Desktop versionConsole versionMobile version
Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Junction Box
  • Junction Box item sprite
  • Junction Box placed
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
Placeable✔️ (1 wide × 1 high)
Use time15 (Very fast)
TooltipSeparates wire paths
It's also hammerable!
RarityRarity level: 1
Buy2 SC
Sell40 CC
Research25 required
  • Internal Item ID: 3616 (Desktop, Console and Mobile versions)
  • Internal Tile ID: 424

The Junction Box is a mechanism that allows wires of the same color to cross without connecting. It is purchased from the Mechanic for 2 SC. The Junction Box can be placed in midair, without the need for support. Hammering the Junction Box changes the directions that the different colored wires enter and exit the Junction Box.


  • The Junction Box can be used as an alternative to buying different colored wrenches and it is cheaper than buying multiple colored wrenches as well (each wrench costs 2 GC).