21-033121-563

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Circular connectors come in various components and specifications, from different contact types and shapes to various sizes, allowing for a wide range of applications. 21-033121-563 is a typical example of such a circular connector. This article explores the application field and working principle of this specific type of circular connector.

Specifications and Properties

The 21-033121-563 circular connector is designed with 2-56/3-52 contacts that are gold-plated and spring loaded for stress-free operation. This connector is rated for a voltage of 250V and a current of 10A, and also offers a life of 100+ cycles. It comes in a one-piece shell made of stainless steel with a stainless steel cover and a nitrile cover seal.

Application Field

The 21-033121-563 circular connector is ideal for a variety of different applications. Most importantly, it is well-suited for structural and manufacturing environments with harsh working conditions, such as extreme temperatures, chemical exposures, and moisture. It is also approved for Underwriters Laboratories (UL) and Canadian Standards Association (CSA) applications. Furthermore, it has a variety of industrial applications, including medical equipment, robotics, and automotive uses. Other applications include industrial lighting controllers, power tools, and communications systems.

Working Principle

The working principle of the 21-033121-563 circular connector is fairly straightforward. When the connector is assembled, the crimp pin on the contact is engaged with the contact retaining cavity. This produces a reliable electrical connection between the contact and the contact pocket. As a result, current can be transferred between the contact and the contact pocket. As the contact is pressed in further, the retention force increases, providing a more secure connection between the two parts.

The contact’s gold-plated spring also serves a number of purposes. For instance, it helps ensure optimal contact between the contact and the contact pocket, producing strong electrical connections. It also helps absorb any physical shock and vibration that may occur during operation and allows the connector to be easily reassembled or unscrewed.

Overall, the 21-033121-563 circular connector consists of 2-56/3-52 contacts, a stainless steel shell, and a nitrogen-filled cover seal in order to protect the contact and provide reliable electrical connections. With its range of applications, superior properties, and reliable working principle, it is easy to see why this particular connector is widely used in a variety of industrial settings.

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