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ANSI / IEC medium voltage indoor fuses

MV fuses up to 40.5 kV for indoor or indoor/outdoor application, commonly known as high voltage fuses, provide main or back-up protection against overload and overcurrents.

Product scope

The current limiting and expulsion (non-current limiting) fuses for medium voltage systems, type tested according to IEC or ANSI standards.


Key
benefits

  • Capable to control full range of overload currents either in combination with switching apparatus or as sole protection
  • Economic protection devices for immediate interruption of high short circuit currents that significantly increase isolation life time
  • High mechanical and thermal resistance of housing materials
  • Low switching voltages makes suitable to be used in wide application range
  • Low power losses and low arc-voltage
  • High breaking capacity and high current limitation


Key features

  • Fuse voltage ratings of 1.2 kV – 40.5 kV, current ratings 0.4-315 A
  • Two housing materials are applicable – porcelain and resin-fiberglass
  • Interrupting capacity up to 115 kA
  • Special designs for wind applications(fast acting fuses CEF-S), motor circuits (CMF), railway (WBT) , distribution transformers (CEF), voltage transformers (CEF-VT, WBP) and capacitor banks (CLC, CIL)

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