WLGCA2-139-N 3M

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Snap Action, Limit Switches are electromechanical devices used to sense the presence or absence of an object. WLGCA2-139-N 3M is a type of snap action, limit switch manufactured by 3M, the leading manufacturing company in the world. 3M switches are designed to detect a change in position, or the presence or absence of an object, and to provide an electrical signal to a control system.

General Description

The WLGCA2-139-N 3M snap action, limit switches are designed and constructed for precision control and long life. This type of switch is typical for industrial wiring and installations. The switch is equipped with a fixed roller arm, an adjustable arm, and a snap action mechanism. When the adjustable arm is moved, the switch is actuated, causing the switch to switch contacts. The contacts in this switch can be either normally open or normally closed. This type of switch is extremely small and lightweight, making it ideal for remote sensing applications.

Working Principle

The WLGCA2-139-N 3M snap action, limit switches are designed with a roller arm, an adjustable arm, and a snap action mechanism. When the adjustable arm is moved, the force generated by the arm causes the roller arm to rotate, thus actuating the switch and opening or closing the contacts. The snap action of the switch is created by a coiled-spring mechanism that is compressed when the adjustable arm is moved, creating a snap action effect. The contacts in the switch can be either normally open or normally closed, depending on the user’s requirement.

Applications

The WLGCA2-139-N 3M snap action, limit switches are used in a variety of industrial applications, including temperature control, speed sensing, pressure sensing, and position sensing. These switches are used in machine tools to control tooling, in medical equipment to sense the proximity of an object, in lifts to sense the limit of the lift’s travel, and in other industrial and manufacturing applications. They are used to detect parameters such as pressure, temperature, speed, and position, and to generate an output signal when the parameter is reached.

The WLGCA2-139-N 3M snap action, limit switches are also used in a variety of safety applications. They can be used to detect the presence of a long object, such as a conveyor belt, as well as to detect an over-pressure or over temperature situation. The switches can be used to detect the end stop or limits of a conveyance system and to detect the presence of dangerous gas or unsafe conditions.

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