3-1437649-4

Top Termination:	Screws with Captive Plate
Material Flammability Rating:	UL94 V-0
Material - Insulation:	Polyamide (PA), Nylon
Operating Temperature:	105°C
Mounting Type:	Through Hole
Terminal Screw Finish:	Zinc
Terminal Screw Material:	Steel
Color:	Black
Features:	--
Barrier Type:	3 Wall (Tri)
Bottom Termination:	PC Pin
Series:	#4, Buchanan
Wire Gauge:	12-22 AWG
Voltage Rating:	150V
Current Rating:	20A
Number of Rows:	1
Pitch:	0.325" (8.26mm)
Number of Wire Entries:	20
Number of Circuits:	20
Terminal Block Type:	Barrier Block
Part Status:	Obsolete
Packaging:	Bulk

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Terminal blocks, sometimes referred to as barrier blocks, are electrical connection devices used to interconnect wires and help establish a common electrical connection between two circuits. They can also be used to secure different types of electrical components for part of an assembly. Terminal blocks are constructed of several components, including a base, a terminal pin, an insulation material, and plastic or metal fasteners.The 3-1437649-4 model of terminal block is specifically designed for telecommunications, industrial control, and instrumentation applications. This model features a zinc-plated steel base material that provides corrosion resistance and improved thermal stability, and a plastic/polyester insulation material that provides durability and excellent electrical insulation. The terminal pin is made of brass material, ensuring reliable and low-impedance connections. The plastic or metal fasteners additionally provide secure and low-impedance connection between the two circuits.Terminal blocks are available in different sizes and configurations, allowing for various applications, such as power conversion systems, electrical control systems, and distributed I/O systems. The working principle of a terminal block is simple; current flows through the device from one circuit to another, creating an electrical connection between the two.The 3-1437649-4 terminal block model features a push-in connection system, making it ideal for quick and easy wiring. By simply pressing the terminal pin into the base, an electrical connection is created. This type of terminal block is also very flexible in terms of its application uses; various devices and wires can be securely connected by using this model. Typical applications include relay switching, signal switching, and other sound/light/signal control operations.The 3-1437649-4 terminal block model is also designed with a terminal bridge, allowing users to easily install the device and quickly connect one ring wire to two terminals. This makes installation and troubleshooting processes faster and easier, while providing improved reliability and stability. Additionally, the copper material used for the terminal bridge further increases the product’s electrical performance, making it an excellent choice for several applications.The 3-1437649-4 model of terminal block offers superior electrical performance and enhanced safety features, making it an ideal choice for both industrial and commercial applications. With its durable construction and reliable performance, it is an ideal choice for applications that require secure and low-impedance connection between two circuits.

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