Types of electrical control switches

Manual operation switch

An on switch is a type of electrical switch that is normally open. When pressed with a single pressure, the points connected to it are closed, and when the hand is removed from them, they return to their normal (open) position. Manual switches are usually connected in parallel and sometimes with auxiliary relays to ensure continuous operation with just a single press. The manual off switch is normally closed and opened when pressed, disconnecting the contacts. This type of switch is generally marked in red. Stop switches are usually connected together in series in control circuits to ensure complete power separation. A dual switch (On/Off) has an open and closed point, and the position of the points can change when the switch is pressed. This type of switch is used to switch between different circuits or to change the direction of the motor. The closed point is opened and the open point is closed when pressed, and vice versa when pressed again. These switches are an essential part of electrical control circuits and play an important role in controlling the turning on and off of electrical appliances and equipment.

Hump keys

It is a type of electrical switch that contains several contact points, and is used to manually connect or disconnect the electrical current that comes from the supply source for the electrical load. These switches can be operated when there is a need to control the turning on and off of electrical equipment or appliances. Hump switches usually have a relatively high current tolerance, making them suitable for connecting and disconnecting large loads. There are many types of cam wrenches available, and each type has its own unique characteristics. Some switches are designed to control the operations of electric motors, while others are used to control lighting or other loads. In addition, some hump switches turn on or off power to all aspects of an electric motor at the same moment, providing a high level of control over the electrical circuits. Thanks to their versatility and strong current tolerance, hump switches are an important solution in various fields where manual control of electrical current and operation of large loads is required.

Limit switches

Limit switches are types of electrical switches that are used to determine the end of travel or the permissible distance of a moving object, such as the shaft of a motor or a mechanical part in a system. These switches have open or closed contacts, or a combination of both, and are designed in such a way that the on/off control terminal protrudes slightly from the contact box. Journey end switches are designed to regulate the movement of equipment or machines. When the moving body moves and reaches a specific point, the contact state changes to transform the electrical circuit. This can stop or start the equipment or perform certain functions. Thanks to their flexibility and adaptability to many applications, end-of-trail switches are an essential part of industrial control and automation systems.

Proximity Sensors

This type does not require contact or mechanical pressure as happens with other traditional switches, meaning that it senses when a load approaches it or enters its range of sensitivity, and thus as a result of this sensing its contact points change.

Pressure Switches

They are types of electrical switches that change the position of their contact points when the pressure reaches a certain value. These switches are used to monitor gas or liquid pressure inside pipes or tanks. When the pressure exceeds a specified limit, the contact position of the switch is changed to induce a change in the electrical circuit. If used to monitor air pressure, for example, pressure monitoring switches allow air pumps to be turned on or off when they exceed or fall below a set pressure. This type of switch is important in applications such as pneumatic or hydraulic pressure control systems.

As for the liquid level switches,

They are used to monitor the level of fluids inside tanks. When the liquid level rises to a certain point, the position of the contacts in the switch changes, causing the electrical circuit to be disconnected or connected and thus controlling the operation of the pump or other systems.

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