BK/S501-4-R

Package / Case:	5mm x 20mm
DC Cold Resistance:	0.027 Ohms
Size / Dimension:	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Color:	--
Operating Temperature:	--
Approvals:	BSI, CCC, CSA, cULus, IMQ, MITI/JET, SEMKO, VDE
Melting I²t:	14
Breaking Capacity @ Rated Voltage:	1.5kA
Mounting Type:	Holder
Series:	S501
Response Time:	Fast
Voltage Rating - AC:	250V
Current Rating:	4A
Fuse Type:	Cartridge, Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses – BK/S501-4-R application field and working principle

Fuses are materials purposely designed to facilitate the safe and reliable control of electrical energy. They work by providing the safest path -f or the least current - for electricity to flow in a circuit. Although they come in many varieties, the most common fuses are those used to protect electrical circuits from an excessive current or short circuit. The BK/S501-4-R is an example of a fuse commonly used in industrial applications.The BK/S501-4-R is a fast-acting, silver-plated fuse with a current rating of 4 Amps (A). It’s usually mounted on load centers and panels, usually in conjunction with to other circuit protection systems, such as a circuit breaker or an overload relay, depending on the circuit’s power draw. It’s designed for use in a circuit with a nominal voltage of 600 volts (V).The main purpose of the BK/S501-4-R is to provide protection from excessive current, which can lead to equipment damage or, in extreme cases, fire. It has a breaking capacity of 10 kiloamps (kA) and operates in less than one second when the current rating is exceeded. The fuse is constructed with a ceramic body and a silver plated end cap. The glass fusing element is designed to completely melt when the current exceeds the rated level.The principles of how a fuse works can be broken down into five steps.First, the fuse element is designed to begin to heat up when electricity flows through it in greater than the rated amount. Second, as the fuse element heats up, it begins to expand, which causes a physical break in the circuit. Third, the fusing element reaches its melting point, causing it to vaporize. Fourth, nitrogen-rich air is drawn in from around the element, cooling it down and, Fifth, preventing any further heat buildup and stops the flow of electricity through the fuse.The BK/S501-4-R is a reliable fuse and should be used in any application where protection from an over current is required. As a multi-purpose fuse, it can be used to protect any type of electrical system, from a home appliance to an industrial machinery. It is UL and CSA approved and is designed for use in wet or dry locations. It is also an economical choice, as it is relatively easy to install and lacks the more complicated components of other circuit protection systems.

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Part Number	Manufacturer	Price	Quantity	Description