0387203921

Series:	Beau™ 38720
Packaging:	Bulk
Part Status:	Active
Terminal Block Type:	Barrier Block
Number of Circuits:	21
Number of Wire Entries:	21
Pitch:	0.375" (9.53mm)
Number of Rows:	1
Current Rating:	20A
Voltage Rating:	300V
Wire Gauge:	12-22 AWG
Top Termination:	Screws with Captive Plate
Bottom Termination:	Solder Turret, Insulated
Barrier Type:	2 Wall (Dual)
Features:	--
Color:	Black
Terminal Screw Material:	Steel
Terminal Screw Finish:	Zinc, Clear Chromate
Mounting Type:	Chassis, Panel
Operating Temperature:	-40°C ~ 100°C
Material - Insulation:	Polybutylene Terephthalate (PBT), Polyester
Material Flammability Rating:	UL94 V-0

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Terminal Blocks - Barrier Blocks

Barrier blocks, sometimes referred to as terminal blocks or electric barrier blocks, are a type of electrical interconnection device designed to provide a quick and easy means of connecting and disconnecting electrical wires and components. This type of block is frequently used in industrial, commercial and home applications to make it easier for technicians to maintain and repair equipment without having to disconnect and reconnect wires.Barrier blocks can be divided into two main types: terminal blocks and conductive blocks. Terminal blocks come in multiple sizes and styles and are typically made from injection-molded plastic, while conductive blocks are typically made with stamped metal and can handle higher power levels. Each type has its own distinguishing features which depend upon the specific application.Barrier blocks are typically used with electrical wires or appliance connections. In industrial applications, they may be used with several different types of wire and cable. They often serve as an electrical supply point, connecting a series of electrical circuits and components. This type of block also provides insulation between wires, preventing electrical shorts and over-heating.The design of barrier blocks can vary, but is generally the same regardless of the type. Most blocks feature two or more sections that have screws and nut assemblies for connecting the wires. They are usually designed in such a way that the screws will not interfere with the making/breaking of a connection. Blocks can come with multiple wiring entries, allowing for different configurations or the simultaneous connection of multiple systems.In addition to their use in connecting wire and appliances, barrier blocks can also come with snap-in mounting clips that allow the block to be securely mounted. This helps to prevent the blocks from being dislodged during installation or operation, as well as providing increased stability. Many types of barrier blocks also come with built-in indicator lights that help to alert the technician of any loose connections or other potential problems.The application field and working principle of barrier blocks depend upon the specific type of block being used. For instance, terminal blocks are often used in industrial applications such as machine tooling, while conductive blocks are more commonly used in home automation systems and other areas where multiple circuits must be connected.In terms of working principles, the two main types of barrier blocks (terminal and conductive) have their own, unique operational differences. Terminal blocks are typically easier to work with, as they require only the use of wires and a conductor (such as copper) to make the connection. Electrical conductivity is created through the manufacturing process, by either etching the copper into the plastic or attaching a metal strip to one edge of the block.However, conductive blocks work slightly differently. They generally use a combination of copper, tin, or other metals formed into a conductive path to carry electrical current. As this path is made, electrical current is forced through the conductive strip, creating continuity for the necessary circuits. It is important to note that this type of block can handle higher current levels than terminal blocks, making it a better option for more powerful applications.In conclusion, barrier blocks are an incredibly useful type of connection device for both industrial and home-based applications. They work by combining multiple wiring systems in a single, simple to use package and can handle a variety of electrical current levels. They are easy to install, with their snap-in mounting clips providing increased stability for a secure fit. Additionally, the two main types offer varied working principles to cover different scenarios. As such, when needing to make electrical connections, it is hard to go wrong with barrier blocks.

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