1478617-3

Snap Action, Limit Switches - 1478617-3 Application Field and Working Principle

1478617-3 Snap Action, Limit Switches (SLSC) is a type of switch that is used in many industries, especially in the areas of automation, industrial automation, and machine automation. The switch is operated by mechanical or electrical contact, or by a combination of both.

General Overview

1478617-3 Snap Action, Limit Switches has two main parts; the body that houses the switch and the trigger lever. The body of the switch is usually made of plastic, metal or composite material, with a choice of two contact forms, Form A and Form B.

The trigger lever is a mechanical lever used to activate the switch. The lever is triggered when it is pushed or pulled by a mechanical force. A spring is located in the stem of the switch and is attached to the lever. The spring pushes the lever back in its original position after the lever is released.

The contact form of the switch determines its contact nature. The contact forms of 1478617-3 Snap Action, Limit Switches are either single-pole/single-throw (SPST), normally closed (NC), normally open (NO), or changeover. Jumper link position of the switch can be selected to control the contact nature of the switch.

Application and Benefits

1478617-3 Snap Action, Limit Switches are used in many applications and industries. In industrial automation, these switches are used for controlling the speed and direction of a motor. They are also used for controlling the flow of fluid, for controlling the temperature of a machine, and for monitoring the position of machine parts. In addition, these switches are used for protection against overloading, for emergency-stop control, or for fault indication.

Due to the nature of its usage, Snap Action, Limit Switches are designed to be reliable and long lasting, withstanding high levels of shock and vibration, and are typically rated for at least 10 million operations while maintaining its tight contact.

Working Principle

When the trigger lever is moved by a mechanical force, the switch’s internal contacts are moved and released. This releases the current or voltage that had been previously held by the type of contact associated with the contact form of the switch. When the force is released, the spring pushes the switch lever back to its original position. Depending on the contact form of the switch, the contacts either stay off or stay on.

1478617-3 Snap Action, Limit Switches are robust and reliable switches that can handle a wide range of applications in many industries. They are a great choice for controlling and monitoring in industrial automation, machine automation, and process automation. With many contact forms available, you can choose the right switch to suit your application.