0387200104

Series:	Beau™ 38720
Packaging:	Bulk
Part Status:	Active
Terminal Block Type:	Barrier Block
Number of Circuits:	4
Number of Wire Entries:	4
Pitch:	0.375" (9.53mm)
Number of Rows:	1
Current Rating:	15A
Voltage Rating:	300V
Wire Gauge:	14-22 AWG
Top Termination:	Screws
Bottom Termination:	Closed
Barrier Type:	2 Wall (Dual)
Features:	Flange
Color:	Black
Terminal Screw Material:	Steel
Terminal Screw Finish:	Zinc, Chromate
Mounting Type:	Chassis, Panel
Operating Temperature:	-40°C ~ 100°C
Material - Insulation:	Thermoplastic
Material Flammability Rating:	UL94 V-0

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Terminal Blocks - Barrier Blocks

Barrier blocks, also known by other names like bridge terminals, choc blocks, and dip connectors are electrical components comprised of two pieces of metal that are used for making electrical connections between two wires. Although they are most commonly used in wiring terminal blocks, they also have applications outside of the traditional terminal block in areas such as circuit board layout and prototyping.A barrier block (like the 0387200104 model) is composed of two pieces of metal that are combined with a series of bridges and holes that help make electrical connections. One side features two columns of metal “bridges” that each have a hole or slot in the middle. This is where two wires are fed into either side of the bridge block from the opposite sides; the metal bridges then establish a connection between the two. The second side of the barrier block features two columns of “blockers” with holes in them, which act as conductors to complete the electrical connection. The metal blockers are also used as breakers in certain applications to help prevent a current from flowing through the circuit.Barrier blocks are typically used in the assembly of terminal blocks, where the bridges connect two pieces of metal together, and the blockers provide electrical insulation. In terminal blocks, the barrier blocks pass through components such as switches, connectors, and other devices to produce an electrical connection and complete the circuit.Barrier blocks have many useful applications in the world of circuitry. They can be used to interconnect multiple circuits and components, as well as extend an existing current in a circuit. They are also highly durable, making them an ideal choice for applications that require a lot of electrical connections, such as in cars, elevators, boats, and planes.They can also serve as voltage regulators, in which they divert power from a higher voltage to a lower voltage. This is useful in many applications, such as in microcontrollers and other low-voltage devices. Additionally, barrier blocks are often used to transfer small signals and protect certain elements from surges.The barrier block is designed to be self-insulating, but in order to achieve better electrical conductivity, a layer of insulating material is often placed between the two pieces of metal. This material can be a layer of plastic, rubber, or ceramic depending on the specific needs of the circuit. This layer also helps protect against sparking and short circuits, which can occur if two pieces of metal are connected directly.In conclusion, barrier blocks are versatile and reliable electrical components that can be utilized in a large variety of applications. Their durability and dependable connectivity make them an excellent choice for many industries, ranging from terminal blocks to circuit boards and prototyping. Their most common application is in the connection of two pieces of metal for various forms of wiring, but they also serve other uses in the world of electrical engineering.

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