1770416

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:	Interlocking (Side), Lever Actuated
Wire Termination:	Screwless - Spring Cage, Tension Clamp
Series:	COMBICON PLH
Wire Gauge:	6-18 AWG
Voltage:	300V
Current:	51A
Mating Orientation:	Horizontal with Board
Pitch:	0.394" (10.00mm)
Positions Per Level:	4
Number of Levels:	1
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Wire to Board

Terminal blocks are arguably one of the most versatile and commonly used types of electrical connectors. They are used in countless applications from industrial to consumer circuits and can be found in almost any machine or device with any type of wire to board connection. But what exactly does the term “terminal block” mean? And how do they work in our increasingly complex electronic systems?

Definition and Classification

Terminal blocks are a type of electrical connector that are designed to join two or more wires together. They are a popular choice in industrial settings where the number of wires in a harness can quickly get out of control without the proper organization. The most common type of terminal block – and the one highlighted in this article – is the wire-to-board terminal block, which connects together a wire harness to a printed circuit board or PCB. There are many other types of terminal blocks, such as spade lugs, hook and loop connectors, D-Sub connectors, and so on.

Installation and Mounting

The installation of a wire-to-board terminal block is straightforward. The connections are usually the traditional force fit method which involves the insertion of the wires into the terminal block. Some terminal blocks can also come with screw connectors if necessary. They typically come in industry standard spacing sizes and can easily be mounted on the board without the need for additional hardware.

Types of Terminal Blocks

Terminal blocks come in many different sizes, configurations, and materials, allowing the user to make a wide variety of connections. The most popular type of terminal block is the standard “blade style” terminal, which has a spring action “clamp” that allows multiple wires to connect to one terminal point. The clamp is opened by the insertion of a tool such as a flat blade screwdriver, and then the wire is inserted and the clamp is closed over it. This makes the connection secure, preventing any accidental disconnection of a wire.There are also terminal blocks with removable insulators which allow only one wire to be connected at a time. This is useful in applications where there are multiple wires in a single harness, as the insulators keep the wire from contacting other “live” terminals and shorting out the circuit.

Working Principle and Advantages

The working principle of a terminal block is relatively simple. When a wire is inserted into the terminal block, the spring-loaded clamp of the terminal makes contact with the wire and creates an electrical connection. This type of connection can last a long time as the contact points are often made of an alloy that provides a good amount of electrical conductivity and insulation. One of the main advantages of terminal blocks is their ease of installation. Connections can be made quickly and securely without the need for additional tools or hardware. Additionally, with their modular design, terminal blocks can be added or removed from the board without disrupting other connections. This is extremely useful in applications where changes and upgrades are often required.

Conclusion

Terminal blocks are a very versatile and affordable type of electrical connector. They have been used in many different types of applications for decades due to their durability, ease of installation, and modular design. Their popularity continues to grow as more and more circuits become more complex and manufacturers look for ways to reduce the cost of components without compromising quality.

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