Creality 3D Ender-3 S1 Y-axis Limit Switch

When your Ender-3 S1 series printer fails to home correctly, crashes into the frame, or throws unexpected endstop errors, the culprit is often a worn or damaged Y-axis limit switch. This genuine Creality replacement restores precise homing and prevents mechanical damage, keeping your prints accurate and your printer safe.

Who is it for

Owners of Creality Ender-3 S1, S1 Pro, or S1 Plus 3D printers who need a reliable, drop-in replacement for a faulty Y-axis endstop. It's also a smart spare part to keep on hand for routine maintenance or emergency repairs.

Main features

• Exact fit for Creality Ender-3 S1, S1 Pro, and S1 Plus Y-axis
• Mechanical microswitch with lever actuator for precise triggering
• 3-pin JST XH2.54 connector for plug-and-play installation
• Durable ABS body and metal lever withstand repeated homing cycles
• 150 mm cable length offers flexible routing
• Normally open (NO) configuration matches original firmware logic

Specifications

• Brand: Creality
• Model: 2101030115
• Product type: Limit switch
• Compatibility: Creality Ender-3 S1, Ender-3 S1 Pro, Ender-3 S1 Plus
• Axis: Y
• Switch mechanism: Mechanical microswitch
• Actuator type: Lever arm
• Electrical rating: 5V DC (logic signal)
• Connector: 3-pin JST XH2.54
• Number of pins: 3
• Switch configuration: Normally open (NO)
• Mounting type: Screw mount
• Material: ABS plastic body, metal lever
• Cable length: 150 mm
• Function: Endstop for axis homing
• Application: 3D printer replacement part
• Operating temperature: 0°C to 50°C
• Colour: Black body, silver lever
• Signal output: Digital (on/off)

Tips

Before replacing the switch, check that the existing switch is properly connected and the lever is not bent or obstructed. When installing, route the cable away from moving parts and secure it with zip ties to prevent wear. After replacement, run a home command and verify the Y-axis stops smoothly at the endstop.