Impact Limit Switch
₵3.00
An Impact Limit Switch is a rugged mechanical switch used to detect the end of travel or position limits of a moving machine part. When something hits the lever/roller/arm, the switch changes state and sends a signal to a controller (ESP32, Arduino, PLC, etc.).
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Key Features
- Mechanical actuation: Triggered when physically hit or pressed.
- Types: Roller lever, straight plunger, hinge lever, adjustable arm.
- Contacts: Usually has NO (Normally Open) and NC (Normally Closed) terminals.
- High durability: Designed for industrial environments.
- Electrical rating: Often supports both AC & DC loads.
How It Works
7
- A moving part of your machine hits the actuator (lever or roller).
- Inside the switch, metal contacts flip.
- The switch outputs ON/OFF depending on the wiring (NO or NC).
- Your controller reads the signal and stops movement or triggers something.
Wiring Example (Arduino/ESP32)
- Connect COM → GND
- Connect NO → GPIO pin (for detecting when it’s pressed)
- Enable internal pull-up in code
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