Voltage - UL:	300V
Insulation Height:	0.632" (16.05mm)
Contact Tail Length:	--
Housing Material:	Polybutylene Terephthalate (PBT)
Contact Material:	Copper Alloy
Wire Strip Length:	7mm
Torque - Screw:	0.4-0.5 Nm (3.5-4.4 Lb-In)
Screw Size:	M2.5
Ingress Protection:	--
Material Flammability Rating:	UL94 V-0
Features:	Ejector Latches, Retention Latches (Non-Wire Side)
Contact Mating Finish:	Tin
Operating Temperature:	-50°C ~ 100°C
Color:	Orange
Wire Gauge or Range - mm²:	0.2-4mm²
Wire Gauge or Range - AWG:	12-30 AWG
Series:	Omnimate BL
Current - UL:	20A
Voltage - IEC:	400V
Current - IEC:	23A
Mounting Type:	Free Hanging (In-Line)
Termination Style:	Screw - Clamping Yoke (Tension Sleeve)
Plug Wire Entry:	180°
Header Orientation:	--
Pitch:	0.200" (5.08mm)
Number of Levels:	1
Positions Per Level:	19
Number of Positions:	19
Type:	Plug, Female Sockets
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Headers, Plugs and Sockets

Terminal blocks, also known as headers, plugs and sockets, are electrical components used to make wiring connections between two electrical components. This type of electrical connection has several advantages over conventional metal connections, including faster and easier connections, decreased wiring time, and greater electrical reliability. Terminal blocks are found in various applications such as telecommunications systems, automotive electronics, and appliances.

What is a Terminal Block?

A terminal block is a wiring block or plug that is used to connect two or more electrical conductor connections with wires or cables. The connections consist of a terminal, which is a conductor connection, a barrier, which prevents circuits from crossing, and a base, which is the substrate on which the electrical components are mounted. The connection points for terminal blocks are usually labeled or color coded for easy reference.

Types of Terminal Blocks

Terminal blocks are available in a variety of styles and configurations and are used for many different types of electrical applications. The most common types of headers, plugs and sockets are:

• Pluggable Terminal Blocks: These types of terminal blocks are designed to be inserted into a mating terminal connector. The terminals are held in place with screws or spring clamps, and the wiring connections are made through the pluggable terminal block.
• Screwless Terminal Blocks: These types of terminal blocks are designed to be connected without the use of screws or other fasteners. The terminals are held in place with clips, and the wiring connections are made through the terminal block without the need for additional fasteners.
• Snap-In Terminal Blocks: These types of terminal blocks are designed to be inserted into the mating terminal connector. The terminals are held in place with a snap-in clip, and the wiring connections are made through the snap-in terminal block.

Advantages of a Terminal Block

One of the main advantages of using a terminal block is the simplification of wiring in an application. With a terminal block, wiring connections can be made quickly and easily, resulting in less wiring time when compared to conventional metal connections. Additionally, when using a terminal block, the electrical connection is more reliable than when using conventional metal connections. This is because the terminals on a terminal block are securely held in place, preventing accidental disconnection of the electrical circuit.Another advantage of using a terminal block is that it stops the propagation of electrical interference or “noise”. This is because the terminals are securely connected using the terminal block, which isolates the interference to the affected wiring instead of allowing it to propagate throughout the electronic circuit.

Applications of Terminal Blocks

Terminal blocks are used in a variety of applications, including telecommunications systems, automotive electronics, and industrial and residential applications.

Telecommunications

Terminal blocks are used extensively in telecommunications systems to make connections between the incoming and outgoing telephone equipment. These connections are often used to connect telephone lines, PBX systems, and other voice and data communications equipment.

Automotive Electronics

In automotive electronics applications, terminal blocks are used to connect the various wires and cables associated with the onboard electrical components, such as the battery, alternator, starter, ECU, and other control modules.

Industrial Applications

In industrial applications, terminal blocks are often used in the installation of electrical wires in control panels. These connections are often used to make connections between the PLCs, RTUs, and other control systems.

Residential Applications

In residential applications, terminal blocks are commonly used to connect the wires and cables associated with home appliances and other electrical devices. These connections are often used to connect the electrical wiring in houses, as well as to make connections to appliances, HVAC systems, electrical panels, and other devices.

Conclusion

Terminal blocks, also known as headers, plugs and sockets, are electrical components used to make wiring connections between two or more electrical components. Terminal blocks are available in a variety of styles and configurations and are used for many different types of electrical applications. The main advantages of using a terminal block are that it simplifies wiring connections, increases electrical reliability, and stops the propagation of electrical interference. Terminal blocks are used in a variety of applications, including telecommunications systems, automotive electronics, industrial applications, and residential applications.

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