431503-21-0

Top Termination:	Screws
Material Flammability Rating:	UL94 V-0
Material - Insulation:	Polypropylene (PP)
Operating Temperature:	105°C
Mounting Type:	Chassis, Panel
Terminal Screw Finish:	--
Terminal Screw Material:	Steel, Stainless
Color:	--
Features:	--
Barrier Type:	2 Wall (Dual)
Bottom Termination:	Quick Connect (0.250")
Series:	43000
Wire Gauge:	12-22 AWG
Voltage Rating:	600V
Current Rating:	20A
Number of Rows:	1
Pitch:	0.438" (11.12mm)
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

431503-21-0 application field and working principle

Terminal blocks are electrical interconnections used in a wide variety of industrial applications, from medical to automotive. They are used to connect wiring and components, provide terminals for power distribution and control, and provide protection against thermal overload, interference and vibration. The 431503-21-0 Terminal Blocks is one such type of terminal block, classified as a barrier block.Barrier blocks are available in a variety of sizes and shapes, depending on the application. The most common type of barrier block is what is commonly referred to as a “dual barrier block”. The 431503-21-0 is an example of a dual barrier block. The dual barriers provide electrical insulation between the connected wiring and components, which helps to prevent electrical shorts. This type of barrier allows for two circuits to be connected in one terminal block, making them an efficient and space-saving option for many industrial applications.The 431503-21-0 is a dual barrier strip that is designed to provide a maximum current rating of 16 amps, and a maximum voltage rating of 600 volts. It is UL listed for temperatures up to 105°C and features a single-piece, self-contained body that is made of a fire-resistant polycarbonate material. The terminal block has a built-in mechanical interlocking system that provides a positive connection between two adjacent conductors and allows them to remain connected while still maintaining a secure connection. This ensures that current will not directly or indirectly flow between the connected parts.The 431503-21-0 features a special ‘push-in’ style connection system that is designed to quickly and easily connect two conductors without the need for additional tools; a small screwdriver can be used to separate the conductors if needed. The push-in system also helps to ensure a secure connection and prevent accidental disconnection of the conductors.Overall, the 431503-21-0 Barrier Block is an ideal choice for those who are looking for an efficient and reliable connection for multiple circuits. It is extremely well designed and built for durability, and its user-friendly design allows for quick and simple installation without the need for additional tools or hardware. Additionally, its UL listing and fire-resistant polycarbonate body make it an excellent choice for a wide range of industrial applications.

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