3JS 400

Series:	3JS
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Fuse Type:	Cartridge, Glass
Current Rating:	400mA
Voltage Rating - AC:	350V
Voltage Rating - DC:	140V
Response Time:	Slow
Package / Case:	2AG, 5mm x 15mm (Axial)
Mounting Type:	Through Hole
Breaking Capacity @ Rated Voltage:	100A AC, 150A DC
Melting I²t:	0.99
Approvals:	CE, CSA, cURus, PSE
Operating Temperature:	-55°C ~ 125°C
Color:	--
Size / Dimension:	0.217" Dia x 0.591" L (5.50mm x 15.00mm)
DC Cold Resistance:	1.22 Ohms

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Understanding the Fuses Used in 3JS 400 Applications: Their Field of Use and Working Principles

Fuses are simple yet reliable devices frequently used in electrical and electronic circuits. They aid in the isolation of power supplies to prevent damage to components due to excessive currents. Many complex electrical systems, including the 3JS 400, rely on the proper implementation of these components. In this article, we explore the use and operating mechanisms of the fuses utilized by the 3JS 400 application. We outline the field of applications as well as the fuse working principle to help technicians better understand the system requirements.

What are Fuses?

A fuse is a device composed of a thin metal alloy that can act as an emergency circuit breaker when too much current passes through it. It is an integral component of an electrical system since it prevents the system from short circuiting or from malfunctioning due to an overload. The risk of system failure or electric shock can increase substantially when fuses are not included in the circuit design or are overlooked.Fuses are incorporated in automated control systems due to their convenience and cost effectiveness. Unlike circuit breakers, fuses are less expensive and require little maintainance. The insertion and removal of a fuse is also much simpler than that of a circuit breaker. For these reasons, they are frequently used in sophisticated electrical systems.

Field of Use for 3JS 400 Systems

The automated control systems used in the 3JS 400 contain a wide range of fuses. These range from plug-in fuses and holder fuses to accessories, such as fuse clips and covers. The fuses may be miniature, car, fast-acting, high-voltage, mid-range, time-delay and many more. Some of the most common applications of these fuses are for circuit protection, overvoltage protection and overload prevention.The environments for which the 3JS 400 fuses are most often used in include industrial applications, manufacturing processes, car and bus maintenance, home appliance repair and computerized electronics maintenance. All of these fields rely on efficient and reliable circuit protection designed to safeguard components and prevent the system from malfunctioning due to overloads and other electrical faults.

Fuse Working Principle

The fuse working principle depends entirely on the design of the fuse. All fuses contain a wire or thin metal alloy strip that melts when too much current travels through it. In plug-in fuses, this metal alloy is inserted into a ceramic or porcelain tube, which then fits into a base. When the heated wire reaches its melting point, electrons pass freely through the cell, creating an intolerable level of voltage. This in turn causes an interruption of current flow in the protection circuit, preventing further damage to the system.In time-delay fuses, the metal alloy heats until a point over its melting point is reached. This causes the material to expand, and thus keeps the current flowing even after the heat has been removed from the wire. In these types of fuses, the trip current must be exceeded by 10-30% for current interruption.

Conclusion

The fuses used in the 3JS 400 applications have a wide range of applications and operating mechanisms. They are relatively simple yet efficient devices used to prevent circuit malfunctions and damage to components. These components are frequently used in industrial applications, car/bus maintenance, home appliance repairs and computerized electronic maintenance. The work principle of fuses is dependent upon their design, but all involve the melting of a metal alloy after an intolerable level of current passes through it, thus preventing further damage.

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