BK1/MCRS4A

Response Time:	Slow
DC Cold Resistance:	0.04 Ohms
Size / Dimension:	0.125" Dia x 0.280" L (3.18mm x 7.10mm)
Color:	--
Operating Temperature:	-55°C ~ 125°C
Approvals:	CSA, UL
Melting I²t:	15
Breaking Capacity @ Rated Voltage:	50A AC, 300A DC
Mounting Type:	Through Hole
Package / Case:	Axial
Series:	Microtron® MCRS
Voltage Rating - DC:	125V
Voltage Rating - AC:	125V
Current Rating:	4A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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BK1/MCRS4A application field and working principle

Fuses are usually defined as an electro-mechanical device, used to protect electrical circuits from overload or short-circuit, which is triggered when the current going through it exceeds the current rating of the fuse. Fuses also come in many shapes and sizes, depending on the particular application for which it is being used. The BK1/MCRS4A Fuse is a high temperature, non-current-limiting, thermally protected fuse, designed for use in a variety of applications. This type of fuse has a higher current rating than most regular fuses and thus can be used to effectively protect circuits from over-currents, voltage surges, and motor overloads. The BK1/MCRS4A fuse is usually used in motor starters, control circuits, and various other equipment used in industrial and commercial applications. The fuse is designed with a thermal mechanism that is triggered when the current rating exceeds the fuse rating. This trigger will cause the fuse to break the circuit, thus preventing any further damage from the overcurrent. The precise design of the BK1/MCRS4A fuse makes it ideal for use in situations where the current may fluctuate from time to time. This is because the thermal features in the fuse allow it to react quickly when the rated current is exceeded. This helps to effectively reduce the risks of any further damage caused due to an excessive amount of current passing through the circuit.The advantages of using the BK1/MCRS4A fuse include its robust construction, as well as its special design features, which make it very reliable and durable. It is able to quickly respond to any overcurrent situation and prevent any further damage from occurring. This makes it an ideal choice for use in circuit protection. Furthermore, the positive thermal coefficient of this fuse ensures that the fuse responds quickly and in a predictable manner when the current overloads. This means that the fuse can be relied on to do its job accurately and precisely.In addition to its reliability, the BK1/MCRS4A fuse has been designed to be easy to install, as well as easy to test and replace, should the need arise. Furthermore, compared to other regular fuses, the BK1/MCRS4A is much more robust and reliable, in terms of its construction, making it ideal for use in a variety of industrial applications. Overall, the BK1/MCRS4A is an excellent choice for those looking for an efficient and reliable fuse. Its high current rating, as well as its thermal protection features, make it an ideal choice for motor starters, control circuits, as well as other industrial applications. Furthermore, its robust construction and easy testing make it reliable and easy to install, ensuring that it is able to provide reliable and efficient protection in a variety of applications.

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Part Number	Manufacturer	Price	Quantity	Description