These are official spare parts compatible with the UltiMaker S3.
Limit Switch X Blue (UMS5/UM2C/UMS7/S3)
$9.99
Limit switch for the X direction with 940 mm white cable and a blue shrink sleeve. UltiMaker spare part compatible with: UltiMaker S3 UltiMaker S5 UltiMaker S7 UltiMaker 2+ Connect Not compatible with Ultimaker 3 series or Ultimaker 2 series machines.
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