OSTKH190551

Mounting Type:	Through Hole
Screw Thread:	M3
Torque - Screw:	0.49 Nm (4.3 Lb-In)
Screw Material - Plating:	Steel - Zinc Plated
Clamp Material - Plating:	Steel - Zinc Plated
Contact Material - Plating:	Brass - Tin Plated
Housing Material:	Thermoplastic
Operating Temperature:	-30°C ~ 105°C
Color:	Green
Features:	Interlocking (Side)
Wire Termination:	Screw - Pressure Clip
Series:	OSTKH
Wire Gauge:	10-24 AWG
Voltage:	300V
Current:	30A
Mating Orientation:	Horizontal with Board
Pitch:	0.250" (6.35mm)
Positions Per Level:	19
Number of Levels:	1
Part Status:	Active
Packaging:	Bulk

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Terminal Blocks - Wire to Board: OSTKH190551 Application Field and Working Principle

Terminal blocks provide an economical and simple solution for connecting electrical wires to devices and printed circuit boards. OSTKH190551 is an industrial-grade terminal block designed with 22 AWG wire and 4.2 mm² push wire application field. This terminal block is suitable for installation in multiple industries, including electronics, air-handling, telecom and automotive. Let’s analyze its application field and working principles in detail.

Application Field

The OSTKH190551 is a direct-plug terminal block with a 4mm² push wire application field. It is designed to meet the requirements of industrial, commercial and residential applications. With its reliable electrical performance and superior durability, it has been widely adopted in applications such as power distribution, signal connections, motor control, lighting fixtures, electrical installations and communication systems.

Working Principle

The OSTKH190551 terminal block connects electrical wires or cables to devices such as circuit boards, transformers, and other electronic parts. It is the most common type of industrial wire-to-board connection. It is easy to install and maintain and does not require any special tools. The terminal blocks have two connecting parts, the screw terminal block and the terminal pin. The screw terminal block has two components, the screw body and the nut. The terminal pin has a protrusion that passes through the hole in the wire and connects it to the terminal block. The screw terminal block is tightened with a wrench or screwdriver to make the connection firmly secure.The OSTKH190551 terminal block is designed with several features that guarantee a reliable and secure connection. It has gold-plated copper contacts for maximum conductivity and low contact resistance. The contact pressure ensures a firm grip on the wire, thereby preventing accidental disconnections. The body is made of high-performance thermoplastic with an excellent resistance to chemicals, shocks and vibration. The terminals also have a round shape which prevents wire debris accumulation.

Conclusion

The OSTKH190551 terminal block can be used in a wide variety of applications and is an ideal choice for reliable and secure connections. It is designed with features that guarantee a firm grasp on the wire, gold-plated copper contacts for maximum conductivity and low contact resistance, and a unique round shape to prevent wire debris accumulation in the cavity. Its easy installation process and reliable performance make it the perfect choice for industrial, commercial and residential applications.

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