1991040

Mounting Type:	Through Hole
Screw Thread:	--
Torque - Screw:	--
Screw Material - Plating:	--
Clamp Material - Plating:	--
Contact Material - Plating:	--
Housing Material:	Polyamide (PA), Nylon
Operating Temperature:	--
Color:	Green
Features:	--
Wire Termination:	Screwless - Spring Cage, Tension Clamp
Series:	COMBICON SPT
Wire Gauge:	12-24 AWG
Voltage:	300V
Current:	20A
Mating Orientation:	Horizontal with Board
Pitch:	0.197" (5.00mm)
Positions Per Level:	9
Number of Levels:	1
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Wire to Board

Terminal blocks are used to facilitate the connection of wires and other components in a variety of applications. They are typically found in industrial equipment, consumer electronics, automotive and many other electrical applications and have been successfully used since the early 1900’s. Terminal blocks can vary greatly in terms of quality, size, design, and construction material. At its most basic level, a terminal block is a plastic or metal block that provides a connection point between two wires or components. Terminal blocks also allow multiple wires to be connected in parallel or multi-point termination. Some larger terminal blocks are the size of a brick and are able to connect and distribute power to multiple circuits or components while smaller terminal blocks are designed for much smaller applications. 1930s technology saw great advances in the design and manufacture of terminal blocks, with the development of the Phoenix contact terminal blocks being the most important breakthrough. Various other developments since this time have seen terminal blocks becoming one of the most commonly used electrical connection systems in industrial, commercial and consumer sectors.Today, there are essentially two types of terminal blocks available: wire-to-wire and wire-to-board. Wire-to-wire terminal blocks are mainly used for making straight connections between two wires. They can also be used to join a single wire or component to a conductor or system. Wire-to-board terminal blocks allow for connection between two components or wires and a circuit board. They often have multiple stacked connection points to facilitate multiple connections. Wire-to-board terminal blocks are generally made from a variety of materials including plastic, steel, brass and aluminum. Plastic terminal blocks are typically easier to install than metal blocks as they can be easily cut to size and molded to fit into applications with complex shapes. The plastic materials also provide good electrical insulation properties while remaining lightweight and cost-effective. Metal terminal blocks are usually heavier and more durable than plastic blocks. They are also generally rated for higher voltages and currents than plastic blocks and are better suited for industrial applications with very high power requirements. Metal blocks have a measure of heat resistance and they are better suited for use in areas where there is a risk of environmental factors causing wear and tear on terminal blocks. The choice of which material to use for a terminal block will depend largely on the application itself. Plastic terminal blocks are usually chosen for small scale and consumer applications because of their relatively low cost and ease of installation. Metal terminal blocks are often used for more demanding applications such as power distribution due to their higher power rating, durability, and resistance to environmental factors. Terminal blocks are also available in a variety of designs and configurations depending on the application. They are typically available in single-wire, multiple-wire, double-ended, and stackable formats, meaning they can be easily adapted for different projects. Additionally, special features such as jumpers and markers are available for use with some terminal blocks to simplify the wiring process and provide clear labelling for keeping track of the system.Overall, terminal blocks are a highly useful electrical connection system, offering an effective and reliable way to join and distribute power between components and circuits in a variety of applications. With many different designs and materials available, they are well suited for commercial, industrial and consumer applications of all shapes and sizes.

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