Package / Case:	Blade, ATO/ATC
DC Cold Resistance:	123 Ohms
Size / Dimension:	0.752" L x 0.201" W x 0.484" H (19.10mm x 5.10mm x 12.30mm)
Color:	Black
Operating Temperature:	-40°C ~ 105°C
Approvals:	--
Melting I²t:	0.4
Breaking Capacity @ Rated Voltage:	1kA
Mounting Type:	Holder
Series:	ATOF®
Response Time:	--
Voltage Rating - DC:	32V
Current Rating:	1A
Fuse Type:	Automotive
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses

Introduction

Fuses are traditional overcurrent protective components that have been used for many years in electrical circuits. They have a current limiting function and are used to protect electric circuits, equipment and persons when a fault occurs in an electrical installation. Fuses limit the current flowing through the circuit for safety reasons. This is done by a quick interruption with a very small spark or noise when a fault occurs.

0287001.U Application Field and Working Principle

The 0287001.U fuse is type of fuses used in industrial and commercial applications and is in accordance with IEC 60947-1 standard. It has quick response fuse with centre-terminals for current ranges up to 63 A. Its primary application includes building gate, MV switchgears up to 6300A and motor protection circuit. The working principle of this 0287001.U fuse is simple and effective. It consists of a copper-coil, an insulating element and a lead fuse wire or strip. The copper-coil is connected to the power supply while the lead fuse wire or strip is connected to the load. The insulating element acts as a barrier between the copper-coil and the lead fuse wire or strip. When a fault occurs, the copper-coil heats up and expands the insulating element. This expansion breaks the contact between the copper-coil and the fuse wire or strip. This, in turn, causes an arc which interrupts the power supply.

Advantages and Disadvantages

The 0287001.U fuses provide many advantages over other fuses. It is very reliable and can be used in multiple circuits. Its high breaking capacity of up to 10 kA makes it suitable for a wide range of applications. It is also very easy to install and maintain. However, there are also some drawbacks to using the 0287001.U fuses. Its high breaking capacity means that it will have a longer response time in case of a fault which may not be suitable for some applications. Additionally, its high frequency of operation can lead to premature failure and operational errors.

Conclusion

The 0287001.U is a type of fuse that is used in industrial and commercial applications. It has a quick response and high breaking capacity which makes it suitable for a wide range of applications. Its advantages include reliability, easy installation and maintenance. However, it also has some drawbacks such as a longer response time and its high frequency of operation.

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Part Number	Manufacturer	Price	Quantity	Description