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Hi-Tech current limiting fuses

Hi-Tech current limiting fuses

Hi-Tech® is an industry-leading brand of current-limiting fuses with advanced designs to provide maximum protection in small, cost-efficient form factors to optimize value, reliability and reduce system lifecycle costs. With fault clearing capabilities in less than one-half cycle, Hi-Tech current limiting fuses reduce the let-through energy, thereby significantly reducing stress on equipment and increasing safety. 


  • 100% factory tested and sealed for a long and reliable operating life
  • Some of the lowest current let-through values in the industry for increased protection
  • Rugged machined-brass end caps used for greater ferrule strength, resulting in less distortion and a more secure fuse attachment.
  • Patented damage sensor significantly reduces the risk of fuse failure



Hi-Tech OS series back-up current limiting fuses
Designed to enhance protection on overhead distribution systems.
Hi-Tech EXT series back-up current limiting fuses
Designed for installation in wet well fuse holders for oil filled pad-mounted switchgear and transformer applications.
Hi-Tech FX series full-range current limiting fuses
Provides both low and high current fault protection in a single, compact fuse body.
Hi-Tech EX series full-range current limiting fuses
Provides both overload and fault current protection for distribution equipment in a single fuse body.
Hi-Tech SX series full-range current limiting fuses
Capable of interrupting any continuous current between the minimum current that can cause melting of its elements and its rated maximum interrupting current.

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