0NLN225.X

Response Time:	Fast
Size / Dimension:	2.094" Dia x 4.878" L (53.19mm x 123.90mm)
Package / Case:	Cylindrical, Blade Terminals
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	50kA
Operating Temperature:	--
Approvals:	CE, CSA, UL
Class:	K5
Features:	--
Applications:	Electrical, Industrial
Series:	POWR-GARD® NLN
Voltage Rating - DC:	250V
Voltage Rating - AC:	250V
Current Rating:	225A
Fuse Type:	Cartridge
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

NLN225.X is a type of specialty fuse manufactured by Mersen US, belonging to the electrical category. This article will describe the application field of NLN225.X and its working principle.

Application Field

NLN225.X is specially designed for industrial or residential power distribution applications where the grounding continuity must be assured during a fault. It is used to protect electrical circuits from over-loading or short-circuiting in a wide range of circuits, mainly for motor control applications. NLN225.X is suitable for use with selector switches, contactors, transformers, motors, and resistors for industrial control and motor control in residential or commercial applications. This fuse can also be used for motor starting protection on cars and trucks, and for protection of the electric wiring in repair shops.

Working Principle

NLN225.X works based on the heating effect of current. It contains links made from metal and ceramic-filled epoxy, an aluminum body, and a fuse element. The fuse creates a heating effect that melts the links and is activated by a pre-determined current level. This known current level is known as the ‘opening current’.In addition, NLN225.X is designed to provide a fast interruption of the current, and it operates when the current level exceeds a pre-determined value. It does not react to a slow increase in current, and it is not affected by voltage fluctuations. When the fuse operates, the molten metal creates an arc which is attractive to the aluminum body and containments the arc in the fuse. This results in the breaking of the circuit and limits further damage from occurring.

Conclusion

NLN225.X is ideal for use in electrical circuits due to its fast-acting characteristics, which can limit the damage caused by electrical faults. Its application field spans many industries, such as automotive, agricultural, residential and commercial. The fuse works by creating a heating effect with current which melts the links and operates when the current level exceeds a predetermined value.

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