Snap Action Micro Switch, also popularly known as knob or pot, are used in various electrical appliances in order to provide easy control over the switching process without the hassle of using traditional switches or fuses. It’s a very convenient and efficient way of controlling the electricity supply as it provides instant switching between input and output connections with a simple push of a button. Some of the common applications of micro switches include switching off the power source, switching on and off the heating element, switching off a PIR motion detector, switching off the main circuit and several more. The key advantage of micro switches is that they are very small and thus require only a very small space to be installed. They can even be controlled directly from a personal computer.
Snap Action Micro Switch, the common kind, normally use an actuator that is spring-loaded to automatically switch between two electrical contacts when force is exerted on the lever. When the force is released, the lever automatically snaps shut and another contact is opened. Even if force is again applied to the lever very slowly, the amplifying effect of the contacts’ vibrating action means that the movement of both the switch contacts is very high -hence, the term’snap action’. Due to this characteristic, micro switches do not need fuses to be open or closed, and they do not get stuck open even when excess contact pressure is applied for a long time.
However, as discussed above, snap action micro switches are used mainly for low-powered, short-circuit sensitive equipment; hence they are unsuitable for high-powered applications like refrigerators. As a rule, micro switch devices are available in different combinations including: fully automatic (with a lever and switch installed in such a way that pulling the lever pulls the plug) and semi-automatic (with a switch and lever installed in such a way that only a half-way mark is open when the lever is pulled) forms. The fully-automatic units are preferred over the semi-automatic ones because they offer a higher level of security.
In addition, there are also hybrid variations between the two types. Hysteresis is the feature that allows the device to close itself even if force is applied on the lever or switch. A fully automatic micro switch normally closes its circuit even when the user reopens the lever. The hybrid variety is composed of a device with a touch sensing surface and an element that causes hysteresis – where the closing of the circuit is triggered by a touch on the surface. The micro switches with this type have been designed for use in applications where users may require manual closing of circuits, but do not require the device to close all the time. They are therefore suitable for applications where users can relax and continue working on a computer, for instance.
Snap Action Micro Switch is a popular supplier of this type of switch. It sells its products through the internet and can also custom design and construct them, as well as provide the components and testing facilities. Users can purchase these micro switch devices online without any specific order. The company offers guarantee services for its products, and guarantees installation of up to 100 percent efficient and secure switching components.
The main features of these switches are their small size, and the ease with which they can be installed. Also, due to their small sizes, they can be easily incorporated into small space. Installing these types of switches involves very simple processes, and do not need any special tools or equipment. Moreover, due to their compact design, they can be placed near power receptacles and thus, do not require any permanent power connection. They are usually available in package sets and can be bought directly from Snap Action Microswitch.
MediaForte BloGs 