S8AW

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A S8AW (snap action switch) is an electrical switch with a mechanical interlock that provides a sensation of a snap when being operated. It is mainly used in places where it is necessary to be sure that the switch is in the right position, or as a replacement of a mechanical switch. S8AWs are frequently used in everyday equipment like photocopiers and vending machines, as well as rocket launchers and aircraft. S8AWs are also used for safety for machines like robots or automated systems.

The S8AW was invented in the early 19th century by a French inventor named Charles de Chastenet de Pezay. He wanted to create an electrical switch that could be actuated with both a push and a release motion. It was essential that the switch could automatically reset itself, so he eventually developed the S8AW. Initially, the switch was used in doorbells and later in incandescent lamps. Later on, it was adopted for safety mechanisms in machinery and vehicles.

The S8AW consists of two opposing spring loops, each with a pivot point, connected by a lever arm. When a force is applied to the switch, the lever arm is pushed in one direction and the springs expand, disengaging the pivot points. However, when the force is removed, the springs contract and the pivot points reconnect, returning the switch to its original position. The switch is triggered when the force applied to the lever arm reaches a certain level, causing the springs to expand and the lever arm to move. The amount of force can be adjusted by changing the tension on the springs.

S8AW switches are usually used as limit switches in industrial machinery, actuating pumps, valves and other components. They are also used in vending machines and robotics. In some safety applications, the two spring loops of the switch will be released when the force is excessive and the switch will remain in that position until reset. This helps prevent dangerous scenarios where the component or machine could overheat, leading to potential damage or even fire.

S8AW switches are usually rated with a maximum current and a maximum voltage. The current rating indicates the maximum current that a switch can handle without damage, while the voltage rating indicates the maximum voltage that the switch can withstand without being damaged. The circuitry connected to the switch should also be considered when selecting a switch, as any faults in the circuitry may cause the switch to be overloaded, resulting in damage.

Overall, S8AW switches are reliable, simple and efficient devices that are suitable for a multitude of applications. They are able to provide a crisp snap action, which makes them ideal for certain applications where it is important to be sure that the switch is in the right position. S8AW switches are a reliable and efficient choice for both commercial and industrial applications.

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