BK1/ABC-12-R

Response Time:	Fast
DC Cold Resistance:	0.0068 Ohms
Size / Dimension:	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Color:	--
Operating Temperature:	--
Approvals:	CSA, UL
Melting I²t:	133.3
Breaking Capacity @ Rated Voltage:	750A AC, 10kA DC
Mounting Type:	Holder
Package / Case:	3AB, 3AG, 1/4" x 1-1/4"
Series:	ABC
Voltage Rating - DC:	125V
Voltage Rating - AC:	250V
Current Rating:	12A
Fuse Type:	Cartridge, Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Fuses: BK1/ABC-12-R Application Field and Working Principle

Fuses are an important electrical safety feature present in almost all electrical systems, with the BK1/ABC-12-R specifically used in high-power circuits.This type of fuse, when used and maintained properly, is effective in preventing possibly dangerous fire or electric shock incidents. This article will discuss the application field and working principle of the BK1/ABC-12-R fuse.

Application Field of the BK1/ABC-12-R

The BK1/ABC-12-R fuse was designed for use in high-power circuits, such as those in factories and electrical utilities. Generally, the fuse is employed in 110-600V AC and 15-400A DC circuits to protect people and equipment from damaging and potentially lethal levels of electricity.The BK1/ABC-12-R is also suited for specific applications, such as air circuit breakers, disconnectors, cable boxes, switchgear, etc. This fuse is one of the most commonly used types in North America due to its applications and safety features.

Working Principle of the BK1/ABC-12-R

The BK1/ABC-12-R is a simple yet reliable fuse. It uses a current rating system to ensure safe operation and effective response to fault conditions.When the current surpasses the fuse’s maximum rating, which is indicated by the letter R in the name, the fuse will create an open circuit. This halts the flow of electricity, protecting the circuit and any attached devices from potential damage.The BK1/ABC-12-R employs a time-delay feature. This delay starts once the circuit reaches the rated current and allows the fuse to break the circuit after a predetermined amount of time. This provides greater protection in the event of a heavy electric load.

Installation of the BK1/ABC-12-R

The installation of the BK1/ABC-12-R is relatively simple. The first step is to ensure the area around the fuse is clean and dry, as dust or moisture can impair the fuse’s performance.The next step is to connect the BK1/ABC-12-R in the circuit that requires protection, followed by the appropriate fuse holder. The final step is to ensure the fuse holder and fuse fit together properly and are secured.

Conclusion

The BK1/ABC-12-R is one of the most commonly used fuses for high power circuits due to its simple design, reliable performance, and high safety rating. Its application field and working principle makes it a popular choice for air circuit breakers, disconnectors, cable boxes, switchgear, and more.By understanding the proper installation of the BK1/ABC-12-R, homeowners, electricians, and other professionals can ensure that the fuse is installed safely and can do its job effectively.

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