The Ultimaker Limit Switch with red wire for the UM3 Extended is the original end-stop switch for the red-coded axis end-stop position on the UM3 Extended model. The UM3 Extended features an extended Z-axis build volume and uses dedicated end-stop components for its specific axis travel distances. End-stop switches define the home reference that all print coordinates are calculated from, making them critical for accurate, repeatable printing.

Failure of this switch on the UM3 Extended causes homing errors, axis over-travel events or misaligned print positioning across the taller build volume. This genuine Ultimaker red-wire replacement restores correct end-stop function for the UM3 Extended. For the blue-wire UM3 Extended variant, see 210000002074.

Key features

• Genuine Ultimaker OEM limit switch for the UM3 Extended with red wire identification.
• Specific to the UM3 Extended model end-stop position with its extended Z-axis travel range.
• Restores accurate homing and end-stop detection for reliable print start positioning.
• Prevents axis over-travel and mechanical damage caused by a failed end-stop signal.
• Also available with blue wire (210000002074) for the complementary UM3 Extended end-stop position.

Compatible with: Ultimaker 3 Extended