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10pcs Micro Limit Switch 3Pin AC 125V/250V 5A Lever Arm Snap Action Normally Open/Close Micro Switch KW12-B

Free shipping on orders over $29.99

$7.58

$ 3 .99 $3.99

In Stock

1.Size:Kw12-b


About this item

  • Type: 10pcs KW12-B Micro Limit Switch, Designed to control the movement of a mechanical part.
  • Contact Material: Copper, Terminal: 3Pin, Rated Voltage: AC 125V-250V, Rated Current: 5A, Action Type: Momentary.
  • Micro Switch: Covered with a plastic shell and external drive rod, is a contact mechanism with micro contact interval and quick action mechanism, for switching action by a specified stroke and force.
  • Feature: Compact size, small contact spacing, short stroke action, bigger torque, small pressing force, quick connect or disconnect, high precision mechanism design offering acute operation and long service life.
  • Application: Be widely used in computer mouse, automobile electronic products, communications equipment, test instrument, small home appliance, microwave oven, electric rice cooker, medical equipment, building automation, electric tools, etc.


Type: Micro Limit Switch
Model: KW12-B
Color: Black, Red, Silver Tone
Contact Material: Copper
Terminal: 3Pin
Rated Voltage: AC 125V-250V
Rated Current: 5A
Action Type: Momentary
Actuator Type: Stainless Steel Lever
Working principle:
1.By external mechanical force transmission elements (by pins, buttons, levers, rollers, etc.) will be used to force action on a reed,
2.Producing reed instantaneous action when action shifted to the critical point,
3.so moving contact with the fixed contact spring at the end of the action point fast on or off.
4.When the force is removed on the drive components,
5.Action reed produce reverse action force transmission element reverse stroke
6.The action reaches a critical point reed, instantaneous reverse action.
Package included:
10x Micro Switches


Brendan van Prooyen
Reviewed in the United States on March 18, 2025
Good parts at cheaper for 10 than retail for 1
E. Barr
Reviewed in the United States on September 3, 2024
This was an exact fit for my Ambiano Ice maker. It was an easy repair and it replaced a 25t105 5e4 switch. Only difference I could see was the original said 6amp and this is 5 amp. Spoke to my brother ( he has a degree in Electronics Engineering) and he said it would be fine. Working great so far! Also as this is a pack I have several spares. :)
3tech
Reviewed in the United States on January 3, 2024
These switches were purchased to replace a few that were in another assembly. The spring within the switch was a bit stronger and required a little magic to make work. These switches worked otherwise.
Go faster
Reviewed in the United States on October 11, 2023
They worked great & small size. Got alot of them for cheap.