39-401 BLK

Pushbutton switches are one of the key components used in a variety of electronic and/or mechanical applications. The 39-401 BLK, also commonly referred to as a basic metal pushbutton switch, is no exception to the importance of this type of switch. It is designed to meet various industrial requirements in a host of different applications, and comes in both momentary and latching varieties.

At the heart of the 39-401 BLK lies its simple, but effective mechanical design. The pushbutton switch itself consists of several key components that, when combined, create an effective, reliable method of actioning a specific event or task when depressure is applied to the switch’s actuator. Typically, the most common components of the 39-401 BLK include a metal base, a threaded contact, a coil spring and a plunger.

Application Field

The 39-401 BLK can be used in a variety of different common applications, both domestic and industrial. These include, but are not limited to, doorbells, machine automation, access control systems, computers, electronic control systems and a variety of other electronic and/or mechanical applications.

Working Principle

The working principle of the 39-401 BLK is simple and depends on the interaction of the different components used. When the pushbutton switch is depressed, the plunger comes into contact with the threaded contact, causing the contact to slide downwards. This, in turn, pulls the coil spring towards the metal base, thus connecting the two pieces of metal. This creates an electrical connection, thus activating the required event or task.

When the switch is released, the coil spring is released from the metal base, thus breaking the electrical circuit. This has the effect of de-activating the required event or task.

The 39-401 BLK can be used in a variety of different applications and is perfect for use in scenarios where electro-mechanical control is required. The simple yet effective design of these switches make them one of the most reliable and cost-effective solutions available on the market.