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2024-10-28
Protective button: A button with a protective casing that can prevent internal button components from mechanical damage or human contact with live parts, designated as H.
There are single-button, double-button, i-button, and various combinations. Generally, a water accumulation structure is used, consisting of a button cap, reset spring, static contact, dynamic contact, and shell, usually made in a composite form, with a pair of normally closed contacts and normally open contacts. Some products can increase the number of contact pairs by connecting multiple components in series.
The button switch is a simple structure and widely used main control device. In electrical automatic control circuits, it is used to manually issue control signals to control contactors, relays, electromagnetic starters, etc.
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