Semiconductor Protection Fuses

Square Body High-Speed Fuse-Links DC Protection

Protistor® size 71 gR 550 to 600VDC

These Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors, GTO's and IGBT devices. Fuses are assembled with pure silver, die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic. All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.



  • Multiple body sizes and terminals or blades combination
  • gR Class according to IEC 60269-4 and VDE 636-23
  • Low I²t for improved semiconductor protection
  • Extremely fast acting
  • Eliminate all overloads
  • Excellent cycling capability


  • Voltage Range (VDC) 550 - 600 VDC
  • Ampere Range (A) 125 - 400 A
  • Speed / Characteristic gR
  • Body Style Square
  • Standards IEC 60269-4 Compliance
    UL/CSA Recognized E76491
    CCC GB 1359.4
  • Application Protection of inverters, motor drives, UPS systems and similar 600V or less equipments.
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Consult Technical Services


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  • D71GB60V125TF - Z302081
  • D71GB60V160EF - A302680
  • D71GB60V160TF - A302082
  • D71GB60V200EF - D302706
  • D71GB60V200TF - B302083
  • D71GB60V250EF - D302223
  • D71GB60V250TF - C302084
  • D71GB60V315EF - D234143
  • D71GB60V315TF - D302085
  • D71GB60V350TF - E302086


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