3-101-421

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Pushbutton Switches

Pushbutton switches are widely used across a variety of applications due to their simple, reliable, and versatile design. Pushbutton switches are classified being either momentary or maintained contact, which refers to the behavior when the button is pressed. Momentary contact pushbutton switches maintain contact only for the period of time when the button is pressed and require the user to continuously hold the button in place to keep the contact made; maintained contacts enable a continuous contact until the button is released.

3-101-421 Application Field and Working Principle

The 3-101-421 is an industrial grade pushbutton switch available in either momentary or maintained contacts, and can be used with a variety of functions within machinery, automation and industrial applications. Both momentary and maintained versions have an operating force of 17.9 lbs (8 kgf) and are rated to 10A 125/250VAC. This switch is included in the “snap-action” family due to its operating mode. When a user presses the button the contact point within the switch are closed and a spring-loaded plunger snaps back into place, which can cause a loud “click” to be heard when the button is pressed. Spring-loaded contacts require the user to press the button down at a certain amount of pressure, as if the pressure is too light, the contacts will not close.

The 3-101-421’s snap-action mechanism also means that the switch will snap back into the open contact must quicker than if it had traditional form of contact. This can be beneficial for the user, as it reduces wear and tear on the contacts. The fact that it is a prime “snap-action” switch also means that a user’s finger may be fast required to take off the button once the contact have been closed. As the button is fast snapped back into the open contact, it can cause physical discomfort to the user.

In terms of size, the 3-101-421 comes in four different sizes: compact, slim, standard and square-cut. The compact version is the smallest at only 16.7 x 20.2mm, while the slim version is the largest at 18.3 x 20.3mm. The standard and square cut versions are in between at 17.3 x 20.3mm and 18.3 x 20.2mm respectively. The square cut version is designed for applications where the mounting hole will be made as a square in the panel. All four versions share the same electrical strength and are IP40 rated, meaning they are heavily dust resistant.

Ultimately, the 3-101-421 is a reliable, industrial grade pushbutton switch able to handle a variety of applications. With its simple design, spring-loaded mechanism and variety of sizes, it is the ideal pick for most industrial applications.

The specific data is subject to PDF, and the above content is for reference