In today’s world, modern technology is making many things smaller and smaller, and this has created some innovative products, including micro switches. They are sometimes referred to as miniature snap action switches and perform the job of switching an electric circuit on and off very quickly. This property has some important benefits for modern electronics and here is a closer look at parts like the Honeywell Micro Switch.
Defining Snap Action
A snap action switch is usually activated by another switch or when something comes in contact with the actuator (this produces the switching). The switches contain contacts assisted by springs and there is a rapid changing in the “on” and “off” position of the switch. In fact, there are three basic types of actuators:
* Levers – may be straight levers or formed
* Rollers
* Push button – often referred to as a plunger device
Why Micro Switches?
Micro switches are designed to work with very little force applied. This is accomplished with an over center or tipping point device within the switch. Due to the nature of the switching duty, a high degree or durability must be built in. For example, some switches may need to operate more than one million times, and as many as ten million cycles.
History
Micro switches are nothing new to technology. In fact, they have been around since the 1930s when Peter McGall invented them. At the time, he was working in Illinois at the Burgess Battery Company. The company eventually started the Micro Switch Company which was bought by Honeywell in 1950. In fact, the term “micro switch” actually refers to the Honeywell Micro Switch, but it is often used in generic terms to refer to any small snap action switch.
Types of Micro Switches
* Single pole
* Sub miniature
* General purpose
* Reset switches
* Precision switches
* Detection switches
* Dust proof switches
Micro Switch Applications
Snap action switches like the Honeywell micro switch come in many different types, and they serve a number of purposes in industry today, such as:
* Microwave ovens – the door interlock switch is a snap action switch.
* Vending machines
* Elevator safety switches – this insures someone does not get their hands or feet stuck in the doors while it is in operation.
* Paper jam detectors for copying machines
* Gate valves for fire sprinkler systems – this lets one know if a valve has been turned off or on.
When you need snap action switches for your business, it’s best to choose a company which provides quality parts like the Honeywell micro switch, and offers complete electronic part services.
If you would like to know more about products like the Honeywell Micro Switch, come to Gopher Electronics. We provide distribution solutions with a wide range of parts and services, including prototyping and testing.
