Description
A miniature snap-action switch, also trademarked and frequently known as a micro switch, is an electric switch that is actuated by very little physical force, through the use of a tipping-point mechanism, sometimes called an "over-center" mechanism.
Switching happens reliably at specific and repeatable positions of the actuator, which is not necessarily true of other mechanisms. They are very common due to their low cost and durability, greater than 1 million cycles and up to 10 million cycles for heavy duty models. This durability is a natural consequence of the design.
Micro switches are very widely used; among their applications are appliances, machinery, industrial controls, vehicles, convertible tops and many other places for control of electrical circuits. They are usually rated to carry current in control circuits only, although some switches can be directly used to control small motors, solenoids, lamps, or other devices. Special low-force versions can sense coins in vending machines, or with a vane attached, air flow. Micro switches may be directly operated by a mechanism, or may be packaged as part of a pressure, flow, or temperature switch, operated by a sensing mechanism such as a Bourdon tube. In these latter applications, the repeatability of the actuator position when switching happens is essential for long-term accuracy. A motor driven cam (usually relatively slow-speed) and one or more micro switches form a timer mechanism. The snap-switch mechanism can be enclosed in a metal housing including actuating levers, plungers or rollers, forming a limit switch useful for control of machine tools or electrically-driven machinery.
Specification
| Item |
Data |
| Operating speed |
1mm-1m/s |
| Operating frequency |
Mechanical |
240 times/min |
| Electrical |
20 times/min |
| Insulation resistance |
100 MΩ above DC500V |
| Contact resistance |
25 mΩ initial value |
| Withstand voltage |
Non-connection wire |
1000 VAC |
| Every terminal |
1500 VAC |
| Vibration |
Misoperation |
10-55 Hz Amplitude 1.5 mm |
| Impact |
Durable |
1000 m/s² |
| Misoperation |
300 m/s² |
| Life |
Electrical |
100,000 times above |
| Mechanical |
1,000,000 times above |
| Protection degree |
IP40 |
| Operating temperature |
-25~+80ºC |
| Operating humidity |
<85% |
Rating
| Ue(V) |
Ie(A) |
Ith(A) |
| AC-250 |
15 |
20 |
| AC-150 |
15 |
20 |
| DC-250 |
0.3 |
0.45 |
| DC-125 |
0.6 |
0.75 |
COMPANY PROFILE
☆ Privately held company, established in 1999
☆ Sales volume over 16 Million USD since 2017
☆ OEM & ODM company, with employees more than 250 persons, 7260 square-meters in size
☆ Service for economical solutions and innovative wire harnesses design & manufacturing
☆IATF16949 (2016) & ISO 9001 (2015), and UL certified supplier with wiring No. E468011 & cable No. E479323
CERTIFICATION
Q&A
1. Q: Can you help to design?
A: Yes, we are an ODM / OEM company, beyond we have been specializing in wire harness & Cable assembly since 1999.
2. Q: When will you start to help design?
A: We sketch simple solution for initial discussion, after quotation and order placed then start to drawing and double confirm with client for the design.
3. Q: What if quality issues occur when customer discover?
A: Our quality and engineer team will positively respond for the quality issues with 72 hours, as we are intend to make long-stand strategy with customer and the value is to provide better service.
4. Q: Do you have any standard products to cut down customers lead time for prototype and tooling cost?
A: Yes, there are over 1000 sets of molds and some of them can be used for customer directly. Moreover, Edgar is specialized in wire harness over 20
years with 5000+ products
CONTACT US
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