3522 Circuit Protection

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Fuseholder Type:	Clip
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Blade
For Use With/Related Products:	ATC, ATO
Fuse Size:	0.75" L x 0.2" W x 0.48" H (19.1mm x 5.1mm x 12.2mm)
Number of Circuits:	1
Voltage:	500V
Current Rating:	30A
Mounting Type:	PCB
Orientation:	Vertical
Termination Style:	PC Pin
Contact Material:	Brass
Contact Finish:	Tin

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Introduction

Fuseholders play an integral role in the electrical systems of industrial, commercial, and residential applications. They are hardwired components designed to protect a circuit or appliance from overloading when a circuit is interrupted. They come in a variety of styles such as breakers, end caps, and safety plugs. This article will discuss the general principles upon which fuseholders operate, as well as details regarding their application to various fields.

Working Principle

Fuseholders work by responding to differential heating within a circuit. When an object is overloaded, the current running through the circuit increases. This increase leads to current flow that becomes faster than the dissipation of heat by the objects in the path. This split in the dissipation of heat is known as differential heating.Fuseholders respond to this split in heat dissipation by using one of two methods. First, they detect sudden changes in resistance within the circuit. When an object begins to become overloaded, its resistance will decrease, triggering the fuseholder to open and de-energize the circuit, thus breaking it. The second method used to detect differential heating is by sensing the current running through the circuit. As a circuit becomes overloaded, more current is required to keep it stable. Fuseholders are designed to detect these surges of current and respond accordingly. A sudden increase in current will cause the fuseholder to open, de-energizing the circuit and breaking it.

Application Fields

Fuseholders are used in numerous applications for both industrial and residential use. Some of the most common applications of fuseholders are in motor control centers, surge protection systems, and security systems.Motor Control Centers:Motor control centers are used to protect motors and other electrical components from overloads. Fuseholders are often used in the circuit boards of these centers to protect individual components from the effects of overloads.Surge Protection Systems:Surge protection systems are designed to protect electrical appliances from power surges. Fuseholders may be used in some surge protection systems to protect the surge from reaching sensitive components.Security Systems:Security systems are an important part of any home or business. Fuseholders are often used in these systems to protect the system from power surges and other electrical problems.

Conclusion

Fuseholders play an important role in protecting circuits and electrical components from overloads. They work by detecting differential heating or increases in current flow, and respond accordingly. These components are used in many fields, such as motor control centers, surge protection systems, and security systems. By knowing how fuseholders work and when they should be used, you can protect your equipment and home from electrical mishaps.

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