Package / Case:	5mm x 20mm
DC Cold Resistance:	0.237 Ohms
Size / Dimension:	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Color:	--
Operating Temperature:	--
Approvals:	BSI, CCC/CQC, CSA, cURus, IMQ, SEMKO, VDE
Melting I²t:	0.632
Breaking Capacity @ Rated Voltage:	1.5kA
Mounting Type:	Holder
Series:	S505
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	800mA
Fuse Type:	Cartridge, Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses: BK1/S505-800-R Application Field and Working Principle

Fuses are an essential component in every electrical circuit, responsible for safeguarding the circuit against electrical current exceeding the minimum level specified. The BK1/S505-800-R is a type of high-performance fuse created to meet the safety requirements set by the latest industry standards. This fuse offers a robust construction and excellent tolerance against short circuit, making it suitable for high current applications. In this article, we will discuss the application field and working principle of the BK1/S505-800-R. The BK1/S505-800-R fuse is one of the most popular fuses in the world due to its reliability and performance. It is used in a wide range of applications, from residential and commercial buildings to electrical appliances and machinery. The fuse is rated for currents up to 800A and is capable of withstanding large amounts of current without damage. To discuss the working principle of the BK1/S505-800-R, let us first have a look at the structure. The fuse is made up of a metal strip that serves as a conductor, a ceramic body that houses the metal strip, and an inert gas, usually nitrogen, that is used to insulate the metal strip from the ceramic body. When current flows through the metal strip, the heat produced is absorbed by the inert gas, which then triggers a chemical reaction, resulting in the melting of the metal strip. As a result, the connection between the two ends of the metal strip is broken, effectively cutting off the electrical current and preventing damage to the circuit. The melting temperature of the metal strip is proportional to its current rating. For the BK1/S505-800-R, the melting temperature is approximately 900C, which is suitable for currents up to 800A. In addition to the abovementioned application field and working principle, the BK1/S505-800-R also has other features that make it an ideal fuse for high current applications. For example, the fuse is able to successfully combat short circuit currents and restart after a short circuit is detected. It also has an intrinsically low inductance, which enables the fuse to respond quickly to sudden current spikes. In conclusion, the BK1/S505-800-R is a high-performance fuse that is suitable for high current applications. Its robust construction, excellent tolerant against short circuits, and low inductance make it a reliable and trustworthy protection device. So, whether you are building a commercial building or an appliance, the BK1/S505-800-R is a great choice.

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Part Number	Manufacturer	Price	Quantity	Description