Electrical Schematic Key Switch Symbol

Electrical Schematic Key Switch Symbol

A key switch is a type of switch that is operated by a key. Key switches are used in a variety of applications, including electrical circuits, automobiles, and electronic devices. The electrical schematic symbol for a key switch is a circle with a key inside. The circle represents the switch body, and the key represents the movable contact. The direction of the key indicates the direction of the switch's operation.

Here are some examples of key switch symbols in electrical schematics:

Key switch symbol

In this example, the key switch is open. The key is in the "up" position, which means that the switch is not connected.

Key switch symbol closed

In this example, the key switch is closed. The key is in the "down" position, which means that the switch is connected.

Key switches are available in a variety of configurations, including single-pole, double-pole, and three-pole switches. Single-pole key switches have one input and one output, while double-pole key switches have two inputs and two outputs. Three-pole key switches have three inputs and three outputs. Key switches can be either normally open or normally closed. Normally open key switches are open when the key is in the "up" position and closed when the key is in the "down" position. Normally closed key switches are closed when the key is in the "up" position and open when the key is in the "down" position. Key switches are used in a variety of applications, including: * Electrical circuits * Automobiles * Electronic devices * Security systems * Industrial machinery Key switches are an essential component of many electrical systems. They provide a simple and effective way to control the flow of electricity.


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