5E4PT.6

Applications:	Transformer Protection
Size / Dimension:	0.813" Dia x 4.600" L (20.64mm x 116.84mm)
Package / Case:	Cartridge, Non-Standard
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	37.5kA
Operating Temperature:	--
Approvals:	--
Class:	E
Features:	Indicating
Series:	POWR-GARD®
Response Time:	--
Voltage Rating - AC:	625V
Current Rating:	5A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Fuses have long been used as a safety device in electrical circuits. 5E4PT.6 is a type of fuse designed for special application fields and its working principle is critical to its effectiveness. This article discusses the application field of 5E4PT.6 and its working principle, providing insight into the function of this specialty fuse in the electrical industry.

Application Field

5E4PT.6 is a specialty fuse that is primarily used in three areas: transportation, industrial, and consumer applications. In the transportation industry, it is used in a variety of applications, from automotive to aviation, to protect electrical equipment from overcurrent. It is also commonly used in industrial applications to protect motors, electrical control boxes, and other components from potentially dangerous voltage surges and short circuits. In the consumer application field, 5E4PT.6 fuses are commonly used to protect household electrical systems from abrupt changes in current such as appliances being plugged in or turned off. They are also used in batteries and battery chargers for cell phones, digital cameras, and other portable electronic devices. This type of fuse is designed for use in areas where higher currents are likely to occur due to operating conditions, and its size and design allow for a compact fuse body that is easy to install without taking up too much space in the circuit.

Working Principle

The working principle of 5E4PT.6 fuses is through a thermal fuse link embedded inside the device. This thermal link consists of a metal strip with thin wire connected to the bimetallic strip. The bimetallic strip will expand when heated, providing the thermal link with changes in resistance.When there is an overcurrent, the current flowing through the 5E4PT.6 fuse will cause an increase in the temperature of the bimetallic strip. This expansion will cause the thin wire to open up, breaking the circuit and preventing the overcurrent from continuing. Once the overcurrent has been overcome, the bimetallic strip will return to its normal size and the circuit will be restored. This allows the fuse to be reused without having to replace it.

Conclusion

5E4PT.6 fuses are designed for use in a variety of application fields. From transportation to consumer applications, they provide a reliable means of protecting electrical circuits from unexpected surges in current. Its working principle, as described above, consists of a thermal fuse link which causes the circuit to be broken in the event of an overcurrent. This makes it a highly effective safety device and one that is easy to install and reuse.

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