Micro switches

Microswitches or microswitches are miniature snap-action switches that operate quickly with a small amount of force. They have been highly reliable, rapid, and efficient to control since they were invented by Phillip Kenneth McGall in 1932 at Burgess Battery Company. They are widely used in modern electrical and electronic applications. Snap-action miniature switches can be widely found in applications requiring a quick and decisive switching action with an audible click. 

Furthermore, the device operates using a compact actuator lever that, when pressed, activates a spring-loaded lever to move swiftly until it contacts a specific position, thereby closing the electrical circuit. This design streamlines quick and constant switching with just a slight application of force. Additionally, a characteristic “click” sound can be heard during its operation, serving as an audible confirmation of activation.

How Do Micro Switches Function?

Microswitches come equipped with an actuator that lifts a lever when pressed, producing a clicking sound to confirm safety and efficiency. They are secured firmly in place by mounting holes. With their extended service life, these switches infrequently require replacement and need minimal maintenance, as their design is quite simple. They mainly work when the normally closed NC pins of the circuits are opened, and the normally open NO pins are closed when the level is pressed. Similarly,  

What are the Key Components of a Micro Switch?

Understanding the main components of microswitches is essential to obtain robust functionality from a microswitch. These components include:

• Cover: Protects the switch from external forces and environmental factors.
• Plunger or Actuator: Manually controls the circuit by turning it On or Off.
• Moving Piece: Applies operating force to the contacts.
• Normally Open NC Terminals: Normally open terminals mean that the switch starts in an open state, avoiding any current from flowing through the circuit when connected.
• Normally Closed NC Terminals: The normally closed terminal works in contrast to the NO terminal by keeping the contacts closed, which allows current to flow through the circuit.
• Contacts: Crucial part of the switch made from conductive materials, typically metal. Making or breaking the circuit.
• Moving Arm: It is basically the lever of the switch that activates the operation of the switch.
• Support: The supportive mechanism that holds the switch firmly in place.

Available Micro Switch Types

Microswitches are available in a wide variety of types, each equipped with advanced features and capabilities. Some of the popular types include: 

• Rotating Micro Switches: Used to detect light objects like paper currency. They are typically used with low-torque actuators. 
• Hinge Roller Lever: Typically has a rolled linked to the lever which makes it perfect for high-speed camera operation. 
•  Leaf Spring: They usually have a more significant stroke as they are powered by a strong leaf spring. 
• Spring Pin Plunger: A spring plunger micro switch features greater overtravel than a pin plunger micro switch. Due to its somewhat larger diameter, it is essential to centre the load on the plunger when using this switch.

Potential Benefits of Micro Switches

• Robust performance in harsh environments.
• Cost-effective and high switching capabilities.
• Low maintenance with longer service life.
• Protection against water and dust ingress.

Application Information of Micro Switches

• Household Appliances
• Automotive
• Industrial Equipment
• Vending Machines
• Small Motors, Lamps, and Solenoids

Overall 

Microswitches are integral parts of modern electrical installations, and they can be found in almost every electrical and electronic application. We provide all types of microswitches from industry-leading manufacturers and suppliers at discounted prices. We can assist you in choosing the right type of microswitch for your specific application.