YL-99 5A Impact Limit SwitchModule

The YL-99 Impact Limit Switch Module is a reliable mechanical sensing module commonly used to detect motion limits or physical contact in machines and electronic systems. It features a high-quality micro switch mounted on a PCB, making it easy to install and integrate into various projects.

This module uses a mechanical impact trigger (lever/roller type depending on version) that activates when pressed, ensuring precise and repeatable switching. With support for up to 5A current, the YL-99 can be used for both signal-level detection and light load control.

Its compact size, clear terminal markings, and mounting holes make it ideal for Arduino projects, CNC machines, 3D printers, robotics, and general automation applications.

Key Features

• Mechanical impact-type limit switch module

• Supports current up to 5A

• Reliable and long-life micro switch

• Easy PCB mounting with screw holes

• Clearly labeled terminals for quick wiring

• Stable and repeatable triggering

Technical Specifications

• Model: YL-99

• Type: Mechanical Impact Limit Switch Module

• Rated Current: Up to 5A

• Rated Voltage: AC 250V / DC 30V (typical)

• Contact Type: NO / NC (Normally Open / Normally Closed)

• Trigger Method: Physical contact / impact

• Mounting: PCB mount

Applications

• CNC machine and 3D printer end-stops

• Robotics position detection

• Arduino and microcontroller projects

• Automation and control systems

• Safety limit detection

• DIY electronics projects

Package Includes

• 1 × YL-99 Impact Limit Switch Module