39-2-E

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Pushbutton switches, also known as pilot devices, are electromechanical tools commonly used in control applications for controlling the operation of machines, processes and systems. One such type of pushbutton switch is the 39-2-E, which is designed for triggering signals in both momentary and maintained applications. This article examines its application field and working principle.

Application Field

The 39-2-E pushbutton switch is rated at 5 VA, with a voltage rating of 115 AC/DC. It is a two-pole switch offering normally open, normally closed and change-over switch types which can be used in different applications. It can be used in applications such as series machines to activate start/stop functions, control panels and machine control systems. It can also be used in domestic appliances and audio systems.

Working Principle

The 39-2-E pushbutton switch has a single piece construction consisting of a plunger, connecting pins and a snap-ring. This switch utilizes mechanical actuators to move a single-path plunger and make or break contacts. When manually pressed, the plunger is driven into the body of the switch, causing the movable contacts to come into contact with the stationary contacts, thus bridging the circuit. Conversely, the switch can be released by applying light force on the plunger, resetting the contacts.

The two switch poles act together, so both contacts are connected at the same time. This type of switch is known as a two-pole switch and it is used to control two separate loads, with both of them switching at the same instance. The 39-2-E pushbutton switch also contains a special reset mechanism, so when the plunger is deactivated, both contacts can be easily reset to their original state.

The 39-2-E offers a reliable solution for applications that require both momentary and maintained switching operations. It is available in several optional finishes, including chrome and white, making it an aesthetically pleasing choice for various applications. The switch is factory sealed and dustproof, protecting it from dirt and dust and providing reliable operation for long periods of time.

Conclusion

The 39-2-E pushbutton switch is designed for a wide range of applications, including control panels and machine control systems. This switch is a two-pole switch that can be used for both momentary and maintained switching operations. It features a single-piece construction and a special reset mechanism to reset the contacts to their original state when the plunger is deactivated. It is factory sealed and dustproof, providing reliable operation for long periods of time.

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