PBS-20B momentary 14.8mm Round push button switch

PBS-20B momentary 14.8mm Round push button switch

There are many kinds of button switches, which can be divided into ordinary button type, mushroom head type, and so on.
Self locking, self reset, rotary handle, indicator lamp, sign and key, with single, double, three buttons, and different combinations. Generally, it consists of a block structure, consisting of a button cap, a reset spring, a bridge type contact, and a shell, usually made of a compound, with a pair of normally closed contacts and often open contacts. Some products can increase the number of contacts by connecting series of components. There is also a self-sustaining button. After pressing, it can automatically hold the closed position and turn it off after power failure.

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