hiBCTR 10pcs Micro Limit Switch KW12-3 AC 250V 5A SPDT 1NO 1NC Micro Switch Normally Open Close Limit Switch with Roller Lever Arm Black($5.97Value)

Description

VERSATILE SPDT CONFIGURATION: Each switch features a Single-Pole Double-Throw (SPDT) design, providing both Normally Open (1NO) and Normally Close (1NC) contacts. This dual-circuit control offers maximum flexibility for a wide range of custom wiring, from activating lights when a door opens to stopping a motor at a set point. RELIABLE SNAP-ACTION MECHANISM: Engineered with small contact spacing and short stroke action for rapid response. The internal mechanism provides a distinct, audible click upon actuation, ensuring positive feedback and reliable performance in applications requiring precise and instantaneous switching. ROBUST ELECTRICAL RATING: Rated for a current of 5A and a wide voltage range of AC 125V to 250V, these switches are suitable for handling power in numerous low-voltage and standard home-appliance circuits. Their robust design ensures consistent operation in your electronic projects. COMPACT & DURABLE DESIGN: With a small footprint of just 20 x 10.5 x 6.5mm (L x W x H), these micro switches fit easily into tight spaces. The durable black housing and metal roller lever arm are built to withstand repeated use, making them ideal for both prototyping and permanent installations. WIDE APPLICATION & DEDICATED SUPPORT: Perfect for projects in building automation, automotive electronics, and home appliance repair. Use them in a computer mouse, gas water heater, microwave oven, electric rice cooker, test instruments, or as end-stops in DIY CNC machines. We provide comprehensive after-sales support: complete digital documentation including user guides and technical references is available through our store customer service, and our support team is ready to assist with installation, programming, and troubleshooting to help you get started quickly.
PACKAGE CONTENTS

10 x KW12-3 Micro Roller Lever Limit Switches



SPECIFICATIONS

Model: KW12-3

Type: Micro Limit Switch

Actuator Type: Roller Lever Arm

Contact Configuration: SPDT (1NO 1NC)

Rated Voltage: AC 125V-250V

Current Rating: 5A

Dimensions (L x W x H): 20 x 10.5 x 6.5mm

Features: Small contact spacing, short stroke action, fast-break mechanism

Color: Black



USAGE INSTRUCTIONS

1. Identify Terminals: The switch has three terminals: Common (C), Normally Open (NO), and Normally Close (NC).

2. Wire Connection: Securely connect your circuit wires to the appropriate terminals based on your project's logic (e.g., use C and NO for a circuit that activates when the switch is pressed).

3. Secure Mounting: Use the mounting holes on the switch body to fix it firmly in place, ensuring the roller lever arm makes proper contact with the moving part of your assembly.

4. Test Operation: Before finalizing the installation, test the switch to confirm the circuit behaves as expected when the lever is actuated and released.



APPLICATION SCENARIOS

- DIY Home Automation: Create custom lighting solutions for closets, pantries, and cabinets that turn on automatically when the door is opened.

- Appliance Repair: A common replacement part for door interlock switches in microwave ovens, rice cookers, and other small home appliances.

- Automotive Electronics: Implement as sensor switches for door open indicators, trunk lights, or custom vehicle modifications.

- Hobbyist & Maker Projects: Ideal for use as end-stop switches in 3D printers and CNC machines, collision sensors in robotics, or custom buttons in arcade-style controllers.

- Industrial & Commercial Equipment: Suitable for use in communications equipment, test instruments, gas burners, medical equipment, and other automation tools.