MRT 1AMMO Circuit Protection

Package / Case:	Radial, Can, Vertical
DC Cold Resistance:	0.07 Ohms
Size / Dimension:	0.329" Dia x 0.303" H (8.35mm x 7.70mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CCC, CE, CSA, cURus, SEMKO, VDE
Melting I²t:	6
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Through Hole
Series:	MRT
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	1A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Introduction

MRTs are widely used in industrial settings to control and monitor current flow and potentially prevent over current situations. They incorporate design features such as adjustable current settings, rated current, and resetting capability. This article will discuss the application field and working principle of MRT 1AMMO Fuses.

Application Field

MRT 1AMMO Fuses are an ideal protection device for controlling over-currents in the power distribution network and are used in many industries, including power generation and distribution, industrial processes, and motor control. They are typically used in low-voltage circuit breaker, fuse switch, motor control and high-voltage switchgear panels.MRT 1AMMO Fuses are capable of providing protection for single-phase and three-phase systems, with ratings from 1,000 to 6,000 amperes all with dual element time delay. This makes them an ideal choice for protecting circuit boards, motors, and other equipment that require an adjustable current setting to ensure safe operations.

Working Principle

MRT 1AMMO Fuses operate on the principle of time delay combined with automatic reset. In this design, the current rating is preset at the factory and cannot be changed. The current is set based on the rated current of the equipment and the rise/alarm time setting set on the device.When the current reaches the preset limit, a time delay is initiated to allow the current level to reduce to a safe level before the fuse trips. This allows for shorter reset times and time-sensitive equipment to operate safely. After the initial fuse has opened, the device will automatically reset after a few seconds and re-open when a safe current is reached.

Conclusion

MRT 1AMMO Fuses are a reliable and efficient protection device for industrial settings. They are designed to provide adjustable current settings, preset at the factory, with dual element time delay to ensure safe operations. They are capable of single-phase and three-phase systems, with ratings from 1,000 to 6,000 amperes, and they operate on the principle of time delay combined with automatic reset.

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