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Snap Action, Limit Switches are components that provide a critical control element in many applications. With a snap action operation, limit switches control the motion of appliances, pumps, motors and other mechanical systems. Although the simple principle of a snap action switch has existed for centuries, the complexity and sophistication of today\'s switches provide precision that matches the most demanding digital applications.

In an electromagnetic sense, current flows through the low resistance areas. As the current flow causes the levers to rotate, the device is activated. When the current dissipates, the lever is automatically reset to default position and the device is deactivated. This action is known as a "relay-type" snap action switch.

Automotive applications, such as brakes, clutches, and driveshafts, are just a few examples of where snap action switches are used. In industrial settings, switches are found in limit-strip settings, choke controls, and as components of many different automated functions. In home applicances, such as microwave ovens and dishwashers, snap action switches help open and close temperature and appliance cycles, as well as monitor safety systems.

Highly reliable, snap action switches offer manufacturers a proven solution to the most demanding switching needs. Recent advances have re-engineered the switches to bring stronger magnetic flux retention, faster response times, and increased durability in extreme environments. Manufacturers must have the assurance that when a switch is activated, it is initiated and closed quickly, decisively and with accuracy.

The working principle for a snap action switch is based on the movement of a switch lever. When the lever moves, the contacts open and close. In most cases, the lever is actuated by an internal coil spring, so the switch will return to its default position when the current is removed from the coil. With this configuration, the switch helps with many application needs.

The current field of application for snap action switches are vast, since they are found in many industries. Automotive, oil & gas, aerospace, power, manufacturing and process control are examples of some of the key industries that make use of them. Besides, they are also found in residential and commercial applications such as heating, ventilation and air conditioning. Scissor lifts, agricultural equipment and security systems are other important applications.

Limit Switches, or snap action switches, provide an efficient and cost effective means of controlling the operation of various machines, appliances and systems. They are highly reliable, offer a wide range of functionality, and are widely used in many industries. Thanks to their quick operation and accurate control, snap action switches provide the control engineers need to keep their machines running efficiently and accurately.

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