MRT 4-BULK-SHORT

Response Time:	Slow
DC Cold Resistance:	0.013 Ohms
Size / Dimension:	0.329" Dia x 0.303" H (8.35mm x 7.70mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Melting I²t:	92
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Through Hole
Package / Case:	Radial, Can, Vertical
Series:	MRT
Voltage Rating - AC:	250V
Current Rating:	4A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Fuses, also called circuit breakers or protective devices, is important in ensuring the safety and stability of electrical systems. Fuses are used to limit the flow of current through a circuit by reacting quickly to over-current conditions, instantly interrupting the current flow if it exceeds the safe limit. There are many types of fuses that come in a variety of shapes and sizes, including withdrawable fuses, engineer fuses, and many others.One of the most common fuses used today is the MRT 4-BULK-SHORT. This fuse combines the most common features of multiple fuse types into one product. It features a three-pole design with integral shielding to prevent back-arching. The fuse can be used for both single-phase and poly-phase applications and comes in a number of different amperage ratings to suit different applications. In this article, we will discuss the application field and working principle of the MRT 4-BULK-SHORT.

Application Field

The MRT 4-BULK-SHORT is a multi-purpose fuse designed for use in a variety of applications. It is used primarily in commercial, industrial, and residential settings for protecting electrical circuits and wiring from over-current and short circuit conditions. In particular, it is well-suited for protecting locations with multiple circuits, such as in banks, office complexes, and apartment buildings, as it provides more efficient protection than if multiple fuses were required for protecting each individual circuit.The MRT 4-BULK-SHORT can also be used in power distribution networks, providing a more cost-effective solution for protecting multiple circuits in a large scale system. It is also used in outdoor locations as its design makes it relatively resistant to harsh environmental conditions.

Working Principle

The MRT 4-BULK-SHORT features a three-pole design with an integral shielding system. This design allows the fuse to protect against over-current and short circuit conditions without relying on an increased current rating, which can lead to constraints in capacity.When the current passing through the fuse exceeds the rating, the fuse element reacts rapidly to the over-current condition. This causes the element to burn and interrupt the current flow. This interruption happens almost instantaneously so that no further damage can be caused to the circuit or wiring.The three-pole design with integral shielding also allows the MRT 4-BULK-SHORT to protect against back-arching, which can be caused due to a fault in a higher potential circuit but can also occur from line-to-ground shorts or arcs on current-carrying circuits. This is an important safety feature as back-arching can cause hazardous conditions.

Conclusion

The MRT 4-BULK-SHORT is an incredibly versatile and safe fuse, offering superior current and arc fault protection. It is suitable for many commercial, industrial, and residential applications, and can even be used in outdoor locations. The three-pole design with integral shielding ensures the fuse can protect against back-arching caused by external conditions. The MRT 4-BULK-SHORT is an invaluable tool in ensuring the safety and stability of your electrical systems.

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