FUJI ELECTRIC Push Button Switches
There are two types of push-button switches: a contact switches and b contact switches. The a-contact and b-contact are called single throw because they have one contact. One type of circuit is called a SPST type, and two types are called a DPST type. In addition, there is a c-contact switch that has both a-contact and b-contacts. Depending on the number of contacts and the number of circuits, it is called SPDT or DPDT. For the button operation, you can select a momentary operation that turns on only while the button is pressed, or an alternate product that stays on even when you release the button. The shape of the push button can be selected from round, square, mushroom type, etc.