Response Time:	Slow
Size / Dimension:	2.843" Dia x 11.626" L (72.20mm x 295.30mm)
Package / Case:	Cylindrical, Blade Terminals
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	200kA AC, 20kA DC
Operating Temperature:	--
Approvals:	CE, CSA, QPL, UL
Class:	RK1
Features:	--
Applications:	Electrical, Industrial
Series:	POWR-GARD®, POWR-PRO® LLSRK
Voltage Rating - DC:	300V
Voltage Rating - AC:	600V
Current Rating:	300A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

The LSRK300.X is a line of specialty fuses with a high current application. It is primarily used for protecting circuit components in a wide range of electronic and electrical systems. It provides reliable protection, fast response time and exceptional performance. This type of fuse is available in a variety of current ratings, and designed to fit into a wide range of enclosure sizes. It has an inrush current limiting feature and is suitable for both AC and DC application.

Application Field

The LSRK300.X is used in a number of electronic and electrical industries. It is particularly suitable for protection of integrated circuits, motor drives, pumps, fans, semiconductor devices, power supplies, industrial control systems and power distribution systems. The fast response time makes it highly effective at protecting delicate and sensitive equipment.It can be used to protect equipment from high over-currents caused by short circuits, open circuits and overloads. The current rating is adjustable to provide optimal protection for various devices. It is well-suited for use in challenging environments which require high temperature, EMI and vibration resistance.

Working Principle

The LSRK300.X works on the principle of electrical current-limiting fuse. When the current exceeds the set current rating, the fuse melts, thus interrupting the current flow. This fast response time helps to protect devices from dangerous levels of current.The fuse is composed of a copper strip which melts in an arc-suppression sleeve. The sleeve is filled with a dielectric medium and an adjustable current regulator. When the current exceeds the set rating, it causes an electric arc to form between the strip and the sleeve. This arc heats the medium in the sleeve, causing it to expand and eventually break, thus interrupting the current flow.The current regulator can be adjusted to provide the optimal protection for different devices. It can be set to a particular current rating to protect the device from overloading. The fuse can also be used to limit the inrush current of the device to ensure its safe operation.

Conclusion

The LSRK300.X is a line of specialty fuses with a high current application. It provides reliable protection, fast response time and exceptional performance. It is suitable for protection of integrated circuits, motor drives, pumps, fans, semiconductor devices, power supplies, industrial control systems and power distribution systems. The current rating is adjustable to provide optimal protection for various devices. It works on the principle of electrical current-limiting fuse and offers inrush current limiting feature. The fuse is well-suited for use in challenging environments which require high temperature, EMI and vibration resistance.

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Part Number	Manufacturer	Price	Quantity	Description