433212-20-0

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

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Terminal Blocks - Barrier Blocks Barrier blocks are a type of electrical connector designed to provide a secure, sealed barrier between two conductive surfaces for voltage and current. This is a unique feature and makes the barrier block a valuable component in many applications, especially in those where extreme safety or environmental protection is a concern. Commonly referred to as terminal blocks, this type of connector comes in many shapes and sizes, some of which can be easily customized to fit almost any application.The typical size and configuration of a barrier block consists of one conductive surface housed in a rugged plastic shell. The inner walls and ridges of the shell almost completely enclose the contact point, preventing any accidental electric discharges from occurring. A small hole is typically drilled into the top of the shell to allow for the insertion of a screwdriver or other conductive tool, enabling the user to easily make the electrical connection between two terminations. Barrier blocks are also commonly used to provide a secure connection point for cables or wires in many applications. They are often used in automation processes and for purposes where multiple cables need to be connected, such as in a wide range of industrial machinery. Barrier blocks provide a reliable, long-term solution to a wide variety of electrical connection problems, making them ideal for applications where speedy disconnection isn\'t necessary.The most common sizing specification for a barrier block is the "D-sub" size identifier. This designation denotes a specific size of connector, usually numbered from 0 to 7. A "D-sub 7" block is the largest of the commonly used sizes, measuring approximately 0.75" wide by 1.05" tall. Perhaps the most important feature of the barrier block is its resistance to extreme temperatures and shock. By using a number of insulating layers, a barrier block provides an effective barrier between the contact and the environment, protecting the connection from extreme temperatures or unexpected impacts. This feature is especially beneficial in high-vibration and marine environments, where sudden shocks or temperature fluctuations can cause permanent damage. In conclusion, the barrier block is a versatile electrical connector, capable of providing a reliable, long-term solution to a variety of electrical connection problems. It is often used in applications where extreme safety or environmental protection is a concern, as they are designed to withstand extreme temperatures and impacts. With many sizes and configurations available, barrier blocks can easily be customized to fit almost any application.

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