Top Termination:	Screws
Material Flammability Rating:	UL94 V-0
Material - Insulation:	Thermoplastic
Operating Temperature:	-40°C ~ 100°C
Mounting Type:	Chassis, Panel
Terminal Screw Finish:	Zinc, Clear Chromate
Terminal Screw Material:	Steel
Color:	Black
Features:	Flange
Barrier Type:	2 Wall (Dual)
Bottom Termination:	Solder Turret, Insulated
Series:	Beau™ 38720
Wire Gauge:	14-22 AWG
Voltage Rating:	300V
Current Rating:	15A
Number of Rows:	1
Pitch:	0.375" (9.53mm)
Number of Wire Entries:	21
Number of Circuits:	21
Terminal Block Type:	Barrier Block
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Barrier Blocks

Introduction

Terminal blocks are devices that are commonly used to connect electrical and electronic components, such as machines, appliances, and lighting fixtures. They provide a secure and safe connection point for the associated wires and cabling. A Barrier Block, also known as an insulated barrier, is an electrically insulated, terminal block designed to accept conductors of two separate circuits, and to ensure that these circuits are properly isolated, keeping them in electrical and physical contact. They are often used in control circuits for industrial machinery, commercial buildings, and residential applications.

Application Field

Terminal blocks are commonly used in a number of electrical, industrial, and automotive applications. They are used to connect two or more electrical circuits for proper functioning of the circuit. Terminal blocks provide a cost-effective and efficient way to connect multiple electrical circuits. They can also be used in safety systems, including emergency stop systems. Barrier blocks provide a great way for connecting two different circuits of different voltages. They are used in many industrial applications and provide a valuable protective barrier between circuits, helping to ensure consistent electrical performance.

Working Principle

Terminal blocks are composed of two components: a base plate that houses the electrical contacts, and a bridging bar that makes the electrical connection between the contacts. The base plate typically contains a series of terminals, slots, which are used to accept the conductor or cable that is to be connected to it. The bridging bar is then attached to the terminals and creates the electrical connection between the conductors. For barrier blocks, the base plate is a single-piece, insulated block of plastic or other insulating material. It contains two sets of terminals, each of which accepts a different conductor. The bridging bar is then inserted between the terminals, creating an electrical bridge between the two circuits. When the bridging bar is in place, it creates an isolated barrier that prevents any contact between the two circuits. This allows for correct operation of both circuits, while ensuring that the user does not come in contact with any live electrical components.

Conclusion

Terminal blocks and Barrier blocks offer a great way to create a secure and safe connection between two or more electrical circuits. Terminal blocks provide a cost-effective solution for many applications, while Barrier blocks provide a great way to ensure isolation between two circuits of different voltages. Both of these devices work on the same principle: a base plate and a bridging bar are used to create a secure connection between two circuits. By understanding the application field and working principle of these two types of terminal blocks, you can ensure that your electrical circuit is working correctly and safely.

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Part Number	Manufacturer	Price	Quantity	Description