1897128

Voltage - UL:	300V
Insulation Height:	0.276" (7.00mm)
Contact Tail Length:	0.138" (3.50mm)
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 EMC
Current - UL:	8A
Voltage - IEC:	250V
Current - IEC:	8A
Mounting Type:	Through Hole
Termination Style:	Press-Fit
Plug Wire Entry:	--
Header Orientation:	90°, Right Angle
Pitch:	0.138" (3.50mm)
Number of Levels:	1
Positions Per Level:	5
Number of Positions:	5
Type:	Header, Male Pins, Shrouded (4 Side)
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Headers, Plugs and Sockets

A terminal block is an electrical component that provides a convenient and flexible means of connecting multiple electric circuits. They are commonly used for power, control, and communication connections in industrial control systems, domestic, and commercial applications. The variety of terminal blocks available differs in terms of their working principles, application fields and sizes, and materials used. This article delves into the working principle, application fields, and sizes of 1897128 terminal blocks.

Working Principles

Terminal blocks, such as the 1897128, typically have two features that allow them to be used to connect electric circuits. These include the connection pin or terminal and the conductive strip. The connection pin provides an electrical interface with the external circuit, while the conductive strip is the mechanism of connection and disconnection of the external circuit. Usually, terminal blocks use either screw clamp type or spring clamp type connections. With the screw clamp type, pressure is created by manually turning a screw which compresses a clamping bar around a wire. The spring clamp type, on the other hand, has a blade spring that can be easily pressed down to clamp the wire, eliminating the need for screws.

Application Fields

Terminal blocks find application in a range of fields, such as power, industrial control, automation, communication, and instrumentation systems. The 1897128 terminal block, for instance, is used to connect electrical circuits in high-speed industrial control systems, such as textile, forging, automated production lines and crane systems. The 1897128 terminal block is usually used in the most demanding applications, such as the connection of high-power electric motors, switchgear, PLCs, and I/O devices. It is designed to quickly and reliably pass current and protect against short circuit, overload, and incorrect insertion of the connected terminals. This, in turn, helps reduce installation time and eliminates common errors that can occur when using other components.

Sizes

The 1897128 is available in varying sizes, depending on the task at hand. It is available in 2.54mm, 3.9mm, 4.5mm, and 5.0mm sizes, each offering different features and sizes for the connection needs of most applications. The 2.54mm size allows conveniently connect wire configurations, such as solid and stranded wires, and is typically used for home applications. The 3.9mm terminal block is suitable for connecting wires up to a large cross-section, as well as flexible, ultra-flexible, and silicone cores. The 4.5mm and 5.0mm sizes are extremely compact and fit into the tightest available spaces, making them ideal for industrial applications. Overall, the 1897128 is a reliable and convenient terminal block for use in multiple applications. Its features make it suitable for a variety of tasks and its scalability to different sizes makes it a versatile solution for both domestic and industrial needs.

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Part Number	Manufacturer	Price	Quantity	Description