432613-23-0

Top Termination:	Screws
Material Flammability Rating:	UL94 V-0
Material - Insulation:	Polypropylene (PP)
Operating Temperature:	105°C
Mounting Type:	Chassis, Panel
Terminal Screw Finish:	--
Terminal Screw Material:	Steel, Stainless
Color:	--
Features:	Flange
Barrier Type:	2 Wall (Dual)
Bottom Termination:	Wire Wrap, Insulated
Series:	43000
Wire Gauge:	12-22 AWG
Voltage Rating:	600V
Current Rating:	20A
Number of Rows:	1
Pitch:	0.438" (11.12mm)
Number of Wire Entries:	23
Number of Circuits:	23
Terminal Block Type:	Barrier Block
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Barrier Blocks

432613-23-0 Application Field and Working Principle

Terminal blocks, also known as barrier blocks or terminal boards, are used in the field of electrical engineering to connect two or more electrical conductors quickly and easily. They are often used to connect devices such as switches, relays, engines, timers, and light fixtures. Barrier blocks are usually mounted on panels, printed circuit boards (PCBs), or mechanical frames with appropriate fixing components, which makes them a vital part of modern electrical systems.

Application Fields

Terminal blocks and barrier blocks have a wide range of applications in various fields. They are commonly used in all kinds of circuit boards, from low-power circuits to high-power circuits. Other fields include broadcasting, satellites, telecommunications, medical engineering, control engineering, power engineering, and industrial control. They can also be found in railway wiring systems, aircraft wiring systems, and military equipment.

Working Principle

Terminal block and barrier blocks work on the same principle. It involves a set of contacts that connect the circuit to the terminal block. The contact is divided into rows consisting of positive (plus) and negative (minus) contacts. The contacts are usually made of nylon or copper, and the terminal blocks are usually made of plastic.The contacts within the terminal blocks are usually connected via either a screw-type or a spring-type connection. The screw-type connection requires a screwdriver in order to securely fasten the connection, while the spring-type connection can be easily joined together by hand. The connection between the contacts within the terminal blocks is made via either a direct or an indirect connection.In a direct connection, the contacts of the two terminals are placed against each other and contact resistance is minimized, creating an electrical connection. In an indirect connection, the contacts are electrically or physically separated, and a wire is used to physically bridge the gap between the two contacts.

Advantages

The main advantage of using terminal blocks or barrier blocks is their ability to quickly connect and disconnect components in a short amount of time. This is especially useful in applications such as motors, fans, lighting, and other high-power applications where wiring needs to be changed or reconfigured on a frequent basis.Terminal blocks also allow for easy maintenance, as the contacts can be easily inspected or replaced, and the entire block can be removed and replaced quickly. They also offer short-circuit protection, which is beneficial in cases where high-power components are connected.

Conclusion

Overall, terminal blocks and barrier blocks are an invaluable part of modern electrical systems. Their wide range of applications, ease of use, and short-circuit protection make them a highly useful tool in any electrical engineer\'s arsenal.

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