BK/C519-250-R

Package / Case:	2AG, 5mm x 15mm
DC Cold Resistance:	1.32 Ohms
Size / Dimension:	0.205" Dia x 0.571" L (5.20mm x 14.50mm)
Color:	--
Operating Temperature:	--
Approvals:	CSA, UL
Melting I²t:	0.467
Breaking Capacity @ Rated Voltage:	35A
Mounting Type:	Holder
Series:	C519
Response Time:	Slow
Voltage Rating - AC:	250V
Current Rating:	250mA
Fuse Type:	Cartridge, Glass
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Fuses

Fuses are components of electrical circuits that have the ability to prevent catastrophic failure of electric components due to electricity overload. In a sense, they are a type of a safety device. A fuse is designed to cut the power when too much electricity is flowing through a circuit. This prevents overload and allows the circuit to return to its normal state. Fuses are an integral part of any electrical system, and it is critical that they are installed correctly and regularly inspected.

Types of Fuses

Fuses can be classified into two distinct types: fast-blow and slow-blow. Fast-blow fuses are designed to break the current in an instant if an overload occurs, and they are generally used for higher currents. Slow-blow fuses provide a larger capacity for short-term overloads and are generally used for lower currents in applications such as audio circuits. There are also time delay, ceramic, glass, AC, DC, power limiting, air terminal, and plug fuses.

BK/C519-250-R Fuse

The BK/C519-250-R is a slow-acting, current-limiting fuse specifically designed for over-current protection in small, energy-saving motors. This particular type of fuse has several advantages. It is removable, lacks thermal lag, and is able to handle cyclical applications with varying loads. Moreover, the BK/C519-250-R can be used as a system-wide protection device or as a local protection device.

BK/C519-250-R Application Field

The BK/C519-250-R is mostly used in small motors such as those found in household appliances, home automation systems, heating and cooling systems, refrigeration systems, and commercial lighting systems. It is also suitable for use in vehicles such as cars, boats, motorcycles, and recreational vehicles. Additionally, the BK/C519-250-R can be used in the protection of machine-tools, electric hand tools, water pumps, and other small motors.

BK/C519-250-R Working Principle

The working principle of the BK/C519-250-R involves a two-stage heating process. First, when the circuit is overloaded an arc is created that will cause the temperature of the fuse element to rapidly increase. This in turn triggers the second stage which involves the fuse responding to the temperature change by expanding its current and ultimately cutting off power to the circuit. The expansion of the fuse element serves to reduce the current in the circuit and protect connected electrical devices from further damage.

Conclusion

The BK/C519-250-R is a slow-acting current-limiting fuse specifically designed for small motor applications. Its two-stage heating process ensures that it is able to cut off power and protect electrical devices from further damage in the event of an overload. Due to its numerous advantages and versatility, the BK/C519-250-R is becoming increasingly popular for use in household appliances, vehicles, and other relevant applications.

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