KW12 Travel Limit Micro Switch 5A 125V/250V NO/NC 2Pin 3Pin
KW12 Travel Limit Micro Switch 5A 125V/250V NO/NC 2Pin 3Pin
KW12 Travel Limit Micro Switch — 5A, 125V/250V, NO/NC
The KW12 Travel Limit Micro Switch is a compact, reliable switching solution built for precision control in a wide range of electrical and mechanical applications. Whether you're working on automation systems, 3D printers, CNC machines, conveyor equipment, or DIY electronic projects, this micro switch delivers consistent, accurate actuation every time.
Key Features
- Versatile Models: Available in KW12-N (2-Pin), KW12-A (3-Pin), and KW11-3Z-2 with handle configurations — choose the right fit for your project.
- Dual Voltage Rating: Rated at 5A, 125V/250V AC for broad compatibility with various circuits and systems.
- NO/NC Functionality: Supports both Normally Open (NO) and Normally Closed (NC) configurations for flexible wiring options.
- 16mm Contact Button: Features a 16mm actuator button for reliable, repeatable triggering in tight spaces.
- High-Endurance Construction: Built with copper contacts for excellent conductivity and rated for up to one million actuation cycles.
- Certified & Compliant: CE and RoHS certified — free from high-concern chemicals, safe for professional and consumer use.
- Compact & Easy to Mount: Low-profile design fits easily into control panels, enclosures, and custom builds.
Specifications
| Current Rating | 5A |
| Voltage Rating | 125V / 250V AC |
| Contact Material | Copper |
| Switch Type | Travel Limit / Touch On/Off Micro Switch |
| Contact Configuration | NO / NC |
| Pin Options | 2-Pin (KW12-N), 3-Pin (KW12-A) |
| Actuation Lifespan | Up to 1,000,000 cycles |
| Certifications | CE, RoHS |
| Country of Origin | Made in Mainland China |
What's Included
- 1 × KW12 Series Micro Switch (model/pin configuration per selection)
Common Applications
- 3D printer end stops and homing sensors
- CNC machine tool limit detection
- Conveyor belt and linear actuator position control
- Automated door and gate safety circuits
- DIY electronics, robotics, and control panels
Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: What is the difference between the KW12-N (2-Pin) and KW12-A (3-Pin) micro switch models?
A: The KW12-N is a 2-pin model that supports a single circuit connection, while the KW12-A is a 3-pin model that offers both Normally Open (NO) and Normally Closed (NC) terminals, giving you greater wiring flexibility for more complex control circuits.
Q: Is the KW12 travel limit micro switch compatible with 3D printers and CNC machines?
A: Yes! The KW12 series micro switch is a popular choice for 3D printer end stops and CNC machine limit detection due to its compact size, precise actuation, and long-lasting copper contacts rated for up to one million cycles.
Q: What certifications does this micro switch carry?
A: This KW12 micro switch is CE and RoHS certified, ensuring it meets European safety and environmental standards and is free from high-concern chemicals — making it suitable for both professional and consumer electronics applications.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.