UL Class Fuses

Industrial power generation and distribution creates unique demands for circuit and equipment protection. UL industrial fuses from Littelfuse meet all the performance requirements. Our current-limiting Class L, RK5, RK1, Class J, Class CC, Class T, Class G, and Class K5 fuse work in ac and dc systems that produce highly magnetized inductive loads. A sampling of applications includes transformers, industrial control panels, switchboards, fully rated panelboards, solenoids, and fluorescent lighting arrays. Most of our UL industrial fuses boast miniature design, and several come with indicators that show when they blow.

Subcategories under UL Class Fuses

Class CC Fuses

Littelfuse offers three different series of Class CC dual-element fuses that are specifically designed to protect different types of components. The

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Class G Fuses

Littelfuse offers a broad range of industrial power fuses for protection of electrical circuits in a variety of applications. The Littelfuse Class G

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Class J Fuses

Littelfuse offers three types of current-limiting Class J fuses to meet the need for circuit protection in industrial and electrical power generation

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Class K5 Fuses

Littelfuse makes a variety of industrial power fuses to protect electrical equipment in a broad range of applications. Class K5 "one-time,"

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Class L Fuses

Current-limiting Class L fuses are available in fast-acting and time-delay versions. Fuses in the LDC and KLPC series feature POWR-PRO® performance,

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Class RK1 Fuses

Littelfuse offers five different series of POWR-PRO® Class RK1 fuses for maximum circuit protection. They are extremely current-limiting and provide

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Class RK5 Fuses

Littelfuse offers five series of current-limiting Class RK5 fuses for superior short-circuit protection. Each boasts dual-element design and

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Class T Fuses

At less than one-third the size of similarly performing Class R fuses, current-limiting POWR-GARD® Class T fuses offer space-saving overcurrent and

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