4DB-W208-08

Terminal Block Type:	Barrier Block
Number of Circuits:	8
Number of Wire Entries:	8
Pitch:	0.325" (8.26mm)
Number of Rows:	1
Current Rating:	20A
Voltage Rating:	150V
Wire Gauge:	12-22 AWG
Top Termination:	Screws with Captive Plate
Bottom Termination:	Wire Wrap
Barrier Type:	2 Wall (Dual)
Features:	Flange
Color:	Black
Terminal Screw Material:	Steel
Terminal Screw Finish:	Zinc, Clear Chromate
Mounting Type:	Chassis, Panel; Through Hole
Operating Temperature:	-40°C ~ 105°C
Material - Insulation:	Thermoplastic
Material Flammability Rating:	UL94 V-0
Series:	4DB, Buchanan
Packaging:	Bulk
Part Status:	Active

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Terminal Blocks - Barrier Blocks

Barrier blocks are terminal blocks that provide electrical connection and prevent electrical shock by creating a separation between the connected lines of a circuit. They are commonly used in industrial and commercial applications, and are a common component found in control cabinets. More specifically, they are found in the relay/timer systems, the interface circuit for mouse/keyboard control systems, or any integrated circuit segments within a control system. The 4DB-W208-08 barrier block is used for printed circuit board assembly. It is known for its versatility and ease of use. As a 2-wire block, it allows the user to connect the two terminals of a printed circuit board together in a quick and efficient way. The insulation on the block helps to prevent any arcing or spark between the contacts, preventing the potential of any electrical shocks in the process.The 4DB-W208-08 block has several features that make it well-suited for this application. The most important of these features is that it is UL & CSA approved. This means that the block meets all the safety requirements of the National Electric Code, and is approved for the highest levels of industrial applications. There is also a 1/2 inch wide channel between the two terminals of the block, which prevents any contact between them and further isolates the connections. The terminals of the block are made of high quality stainless steel, which ensures a secure connection with minimal contact resistance. The 4DB-W208-08 block also features 5 through-hole screw locations, which are ideal for wiring in a secure fashion. The screws can also be adjusted for a greater or lessening tension to the wire,which is useful when working with different wire gauges and applications. There is also a black plastic cover on the outside of the block, which helps to keep the dust and other contaminants away from the block and its connections, thus helping to extend the life of the block. The 4DB-W208-08 barrier block works based on the principle of a barrier of insulation between two terminals. This barrier helps to ensure that no electrical current can travel from one terminal to the other, thus reducing the risk of any electric shock. The connection between the two terminals is also secure, thanks to the 5 through-hole screws that hold the connections in place. The insulation on the block further helps to reduce any arcing or sparking between the terminals. In summary, the 4DB-W208-08 barrier block can be used in many commercial and industrial applications for creating a secure and safe connection between two terminals. Its versatile and easy to use design, its UL & CSA approval, and its 5 through-hole screw locations make it an ideal choice for applications such as printed circuit board assembly. Finally, its insulation barrier prevents any arcing or sparking between the two terminals, further reducing any risk of electric shock.

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