What Is a Micro Switch?

Micro Switches are one of our product ranges here at Herga. They can be used for many different applications and are suitable for a range of industries.

What is a Micro

 A Micro Switch is a
small, very sensitive switch which requires minimum compression to activate.
They are very common in home appliances and switch panels with small buttons.
They are typically inexpensive and have a long life meaning they can function
for a long time – sometimes up to ten million cycles.

Because they are
reliable and sensitive, micro switches are often used as a safety device. They
are used to prevent doors from closing if something or someone is in the way
and other applications similar.

 How does a Micro
Switch Work?

 Micro Switches have
an actuator which, when depressed, lifts a lever to move the contacts into the
required position. Micro switches
make a “clicking”
sound when pressed this informs the user of the actuation.

 Micro switches often contain fixing holes so
that they can be easily mounted and secured into place. Because they are such a
simple switch they require virtually no maintenance and they rarely need
replacing due to their long life.  

 Benefits of Using
Micro Switches

 As stated above, the
main advantage of using a micro switch is their inexpensiveness, along with
their long life and low maintenance. Micro Switches are also versatile. Some
micro switches offer a protection rating of IP67 which means they are resistant
to dust and water. This enables them to work in conditions which they are
exposed to dust and water and they will still function correctly.  

 Applications for
Micro Switches

 The Micro Switches we
can offer are commonly used in home appliance applications, building,
automation and security applications. For example:

  • Push
    buttons for alarms and call points
  • Turning
    devices on surveillance cameras
  • Triggers
    to alert if a device is dismounted
  • HVAC
  • Access
    control panels
  • Elevator
    buttons and door locks
  • Timer
  • Washing
    machine buttons, door locks and water level detection
  • Air
    conditioning units
  • Refrigerators
    – ice and water dispensers
  • Rice
    cookers and microwave ovens – door locks and buttons.


Herga uses micro switches in many
of our products including footswitches, pressure and vacuum switches as well as
hand controls.

For more information
on these applications take a look at our blog post “What is a Micro switch Used

 Micro Switches from

 Our micro switches
come from our supplier Zippy and are available from Herga within the UK. They
come in a range of sizes with different connections depending on your
application. Many of them offer UL/cUL and ENEC certification for use in a
variety of industries.

If you would like more
information on Micro Switches take a look at our Micro Switches page or contact

For more information please contact: Herga Technology Email: sales@herga.com Tel: +44 (0)1284 701422

Article date: Mon, 10 Jun 2019 10:20:00 +0100 GMT

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