What is a Lpj fuse?
Long time-delay minimizes needless fuse openings due to temporary overloads and transient surges. • Can often be sized for back-up protection against motor burnout from overload or single-phasing if other overload protective devices fail.
What is a Class J fuse?
A Class J fuse is a 600 volt AC current limiting, fuse that is rated to interrupt a minimum of 200,000 amps. Class J fuses are offered in fast acting, or time delay versions. Ampere ratings for the J type fuses range from 1 to 600 amps.
What is Bussmann fuse?
Bussmann series fuses play a major role in industrial or commercial facilities by providing reliable, maximum protection to power systems. Their physical size or rejection features prevent replacing a fuse with one from another fuse class.
What is the difference between Class R and Class J fuses?
Class R fuses are available with DC ratings. They have an interrupting rating of 200kA rms symmetrical and are separated into two separate classes, RK1 and RK5. Current ratings of UL Class J fuses range from 0A to 600A, and the voltage rating is 600VAC. Class J fuses are available with DC ratings.
Who owns Bussmann fuses?
Cooper Industries plc
Cooper Bussmann, the industry leader in critical circuit protection, power management and electrical safety, is a subsidiary of Cooper Industries plc (NYSE: CBE), and is headquartered in St. Louis, Missouri, USA.
What does SC mean on a fuse?
Compact branch-circuit units with high interrupting rating and current-limitation. • With 600V rating, they can be used in 120/208, 120/240 and 277/480V circuits.
What are Class L fuses used for?
These non-renewable fuses are current-limiting and conform to 248-10. They’re designed for the protection of feeders and service entrance equipment. Current ratings for UL Class L fuses range from 601A to 6000A, and the voltage rating is 600VAC. Class L fuses are available with DC ratings.
What is a Type S fuse?
Type S fuses are also called tamper proof fuses because each fuse size has a different base and thread size. These fuses also require the use of a special adapter which is screwed into the standard Edison base of the fuse holder. The adapters have amperage ratings the same as the fuses which go in them.
How do I remove a Bussmann fuse?
Use an insulated fuse puller to remove the blown fuse by grasping the fuse cylinder in the center and pulling straight out. Do not twist or turn the fuse. Do not touch the ends of the fuse while it is installed in the two metal brackets.
