325803 Connectors, Interconnects

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Rectangular connectors are the most common type of connector used in industrial automation and control system applications. They are often referred to as “terminals”. The type of rectangular connector used in a given application depends on the application field, number of contacts, voltage rating, and other factors.

In many industrial electric control systems, large and bulky terminal blocks and electrical panels are used for interconnectivity and wear resistance. As industrial automation control systems have become more integrated and miniaturized, the use of terminal connectors in such applications has become more commonplace.

Terminal block connectors provide a means to interconnect components, such as motors, sensor, actuators and switches. The connector is attached to the internal wiring of the control device. This facilitates the connection of the control device to the external wiring and components, thus allowing remote control and power distribution.

Some common types of terminal connectors include the following:

• DIN 41612 Connectors – These are widely used in industrial and control applications and are characterized by two or more rows of contact pins. The two rows are parallel to each other and can accommodate larger numbers of contact pins, ranging from 20 to 48 or more per row.
• Rectangular Pin Connectors – This type of rectangular connectors consists of a terminal block with a recessed center portion. The contact pins around the terminal block facilitate a quick and easy connection. This type of connectors is typically used in industrial machine building, medical equipment, and flight control systems.
• High Density Connectors – High density connectors are often used in medical and military applications. They are characterized by the ability to accommodate up to 10 times the number of contacts per row than conventional connectors. High density connectors also offer increased vibration resistance, higher voltage ratings, and faster mating rates.
• USB Connectors – USB connectors are used in electronic applications for data transfer between computers and devices. USB connectors are available in different sizes and configurations and are becoming increasingly popular for industrial control systems.
• Optical Connectors – Fiber-optic connectors are increasingly being used in industrial automation and control systems. This type of connector allows for high-speed data communication over long distances. Some of the benefits of optical connectors include low attenuation and improved signal integrity.

The working principle of rectangular terminal connectors is simple. Connectors are used to connect two or more electrical components. A connector or terminal block provides a means to attach a component to the internal wiring of an electrical machine or device. The process of connecting two electrical components is accomplished by placing the contact pins in the appropriate slots or holes of the terminal block.

Terminal blocks can also provide a means to connect two components that are not physically connected. In addition, some terminal blocks provide a means to protect the connection and prevent accidental disconnection. For example, some terminal blocks are designed with lock and key mechanism.

In conclusion, rectangular connectors, or “terminals”, are used in a wide variety of applications, ranging from industrial automation and control systems to medical and military applications. Different types of connectors are available, depending on the application field and the number of contacts required. The working principle of terminal connectors is relatively simple and consists of connecting components using contact pins.

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