1991309

Mounting Type:	Through Hole
Screw Thread:	M3
Torque - Screw:	0.45-0.5 Nm (3.9-4.4 Lb-In)
Screw Material - Plating:	--
Clamp Material - Plating:	--
Contact Material - Plating:	--
Housing Material:	Polyamide (PA), Nylon
Operating Temperature:	--
Color:	Green
Features:	--
Wire Termination:	Screw - Rising Cage Clamp
Series:	COMBICON PT
Wire Gauge:	12-20 AWG
Voltage:	300V
Current:	20A
Mating Orientation:	Horizontal with Board
Pitch:	0.197" (5.00mm)
Positions Per Level:	3
Number of Levels:	1
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Wire to BoardTerminal blocks provide electrical connection between two points, usually wires, that are typically powered or controlled by the same circuit. The wire to board terminal blocks provide a connection where one wire is connected to the other terminal block and then to the board or other components. This type of terminal block is frequently used in consumer, commercial and industrial applications.The terminal block family of products provides for a wide range of applications. The most common applications of terminal blocks include power or signal distribution, electronics and control circuit interconnectivity and switching. They are generally used by power distribution and control systems, industrial automation, telecoms, instrumentation, audio, video, automotive, medical, lab and test, and appliance markets.The typical design of a wire to board terminal block is characterized by two distinct and separate metal plates with a gap in between. The gap is usually filled with an insulator. The two metal plates can be used to connect wires to the board or other components.To prevent any physical contact between the two metal plates, they are usually separated by an air gap, which can be filled with a nonconductive material. The wire is then wrapped around the metal plates, so that it forms a connection to the board or other components. The size of the insulator can vary depending on the type of connection and application.The most commonly used insulation within terminal blocks are Teflon, Polyimide or Kapton insulation. These types of insulation provide good electrical resistance as well as dielectric strength. In some applications, polyethylene can also be used, as it has the highest dielectric strength of all the plastic materials available.Terminal blocks can be wired according to two main principles, the conventional wiring and the switching principles. With the conventional wiring principle, the wires are connected to the two distinct metal plates of the terminal block. This means that it can be used as a simple power or control distribution device.On the other hand, the switching principle provides electrical connection between two distinct terminals, usually wires, which can then be switched on to or off from the board. This is most commonly used in automotive and other industrial applications. Through the switching principle it is possible to switch between different wiring patterns. It is also possible to connect two wires simultaneously to the two metal plates of the terminal block.The application areas for terminal blocks covers a wide range. They are mostly used to securely and reliably distribute power or control to different areas in an electrical system. In automotive and other industrial applications, the switching principle is used to achieve the same result.Terminal blocks are also used for a variety of other tasks, such as joining two circuits, providing a link between power and control systems, providing fault current protection, and providing an electrical connection between two circuits.In summary, terminal blocks are a versatile family of electrical connection devices. They come in a variety of sizes and are suitable for a wide range of applications. The most common applications are in power distribution and control systems, industrial automation, telecoms and instrumentation, as well as for wiring between two circuits. Through the use of the switching principle it is possible to switch between different wiring patterns, allowing for a greater variety of applications.

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