1844278

Voltage - UL:	300V
Insulation Height:	0.285" (7.25mm)
Contact Tail Length:	0.134" (3.40mm)
Housing Material:	Polybutylene Terephthalate (PBT)
Contact Material:	--
Wire Strip Length:	--
Torque - Screw:	--
Screw Size:	--
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Features:	--
Contact Mating Finish:	Tin
Operating Temperature:	--
Color:	Green
Wire Gauge or Range - mm²:	--
Wire Gauge or Range - AWG:	--
Series:	COMBICON MC
Current - UL:	8A
Voltage - IEC:	250V
Current - IEC:	12A
Mounting Type:	Through Hole
Termination Style:	Solder
Plug Wire Entry:	--
Header Orientation:	90°, Right Angle
Pitch:	0.138" (3.50mm)
Number of Levels:	1
Positions Per Level:	8
Number of Positions:	8
Type:	Header, Male Pins, Shrouded (4 Side)
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Headers, Plugs and Sockets

Introduction to 1844278 Terminal Block Application Fields and Working Principle

Terminal blocks, more formally known as header blocks are used to connect points on a circuit board or system for control and/or communication. A terminal block is a type of electrical connection that acts as a connector between two or more wires carrying electricity. It can also be used to connect other types of electrical signals, such as the power supplied to computers, telecommunication and alarm systems, and analog or digital signals. Terminal blocks come in a variety of forms. There are printed terminal block types, such as surface mount terminal blocks; panel mount terminal blocks; right angle headers; Busbar terminal blocks; through-hole terminal blocks and modular terminal blocks. Some terminals can be non-insulated or insulated, while others have slotted or flanged accessories for holding wire ends in place. Additionally, they are sometimes grouped into larger assemblies. Terminals are common in the automotive, industrial and medical industries where interconnectivity and durability are key. This type of electrical connectivity is used to power various components, including lighting, robotics, pumps and motors.

Types of Terminal Blocks

Surface mount terminal blocks are the most common type and are generally used when space is limited. They are small and can support thin connectors while still providing protection from EMI/RFI and voltage spikes. Panel mount terminal blocks are also used when wiring is required inside electrical cabinets or when a terminal block must be easy to remove. These blocks are mounted horizontally or vertically on hard surfaces. Right angle terminal blocks allow cords and cables to connect to a board perpendicular to the board, saving space. Busbar terminal blocks connect multiple wires to a single power source. Through-hole terminal blocks are used when more secure connections are needed. They are more secure than surface mount blocks because the wires are clamped firmly to the block with screws. Modular terminal blocks can have several units connected together to form a larger assembly, making them ideal for complex wiring applications.

Advantages of Terminal Blocks

Terminal blocks have many advantages. They make wiring easier, faster and more reliable. They are also easy to install and can be changed out or serviced quickly should the need arise. Terminal blocks are also available in a wide range of sizes and shapes and can be used with multiple wire lengths.If properly designed and installed, terminal blocks can help reduce costs and improve reliability. Additionally, they protect the terminals from short circuits and provide insulation against electrical shock, making them a safe and efficient choice.

Working Principle of Terminal Blocks

Terminal blocks function by extending the contact point of a wire in the form of a connection block. The current passing through the wire will produce an electric field at the point of contact. This in turn produces an opposing voltage that can be used to power other components in the system. In the case of Busbar terminal blocks, the current is produced by an alternating voltage, which enables a steady electrical flow from one pole to the other. This type of terminal block is used in applications such as variable speed drives and motor controllers, where the power output needs to be evenly spread. In a surface mount terminal block, the current in the wire is maintained even when the wire is bent or flexed. This is due to the shape of the contact point and the fact that it is firmly held in place.Through-hole terminal blocks also hold wire firmly in place, but they require manual insertion of the wire into a hole in the block. A secure connection is ensured when the wire is secured with screws. Finally, modular terminal blocks are used to group multiple blocks together into a single assembly. This is useful for more complex wiring applications, where the blocks must be securely connected together.

Conclusion

Terminal block connectors are a versatile and reliable choice for a wide range of applications. They can be used for power, signal, or data transfer, and feature a variety of designs for various levels of complexity. In addition, they provide better reliability, contact consistency, and connection security than other types of connectors. Furthermore, modular designs make it easy to group multiple blocks together into a single assembly.

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