A-20GV2

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Snap Action, Limit Switches

A-20GV2 is a type of snap action limit switch designed to sense the presence of an object and transfer an electrical signal to activate or deactivate the power output accordingly. It is most of the time used in automatic door openers, elevators, motion detectors, alarm systems, motor control circuits and machine control systems. By using its rocker arm, the switch opens or closes a circuit as its contacts come in contact with the actuated point.

The A-20GV2 snap action limit switch is usually located on the top part of the machine and makes use of a manually adjustable arm to activate a switch as the actuated point is reached. This arm is essentially a spring-loaded lever which is designed to be pushed from both sides, when the predetermined point is reached. Its main purpose is to stop the action of the machine or electrical current when it reaches its limit. This type of switch is highly reliable and its operating performance can be easily adjusted for the desired application.

The A-20GV2 works by using a double-contact set. One contact will remain open for the initial step of operation and the other contact will close at the predefined limit. The moment both contacts close, the machine will stop, activating the limit switch. The contact of the limit switch will remain closed until the machine is reset. This reset action is usually achieved by pulling the lever or arm upwards and ensuring that the contacts remain open.

The limit switch offers a wide range of functionalities. It has been designed to work in harsh industrial conditions and provide a reliable operation over extended periods of time. Its contact operation is triggered by an automatically adjustable hammer and its contact programming is enhanced by externally adjustable settings. The external settings determine the physical position of the arm and the distance it needs to travel before the switch is triggered.

The A-20GV2 is usually used in applications where a precise and controlled switch should be used for motor control, door opening, and other machine control systems. It offers an efficient and reliable operation and its operating performance can easily be adjusted for the desired applications. It is essential that the limit switch is maintained and properly adjusted for the desired application in order to ensure the optimum performance of the switch.

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