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Medium And High Voltage Fuses

Littelfuse

E-Rated series

Article: 00083852

Current-limiting fuse / cylindrical / medium-voltage / transformer

The E-Rated fuses in this series have time current characteristics, being designed for providing current limiting protection for power transformers, power centers, potential transformers, feeder centers and unit sub-stations. When applied properly, these products can protect against low and high fault currents. Note that these products are compatible with the NEMA standards for E-rated medium voltage fuses, which requires that fuses rated 100E or less are open within 300 seconds.

The fuses with an E-rating more than 100E must also open within 600 seconds, especially when subjected to a current of type rms, of 200-240% of the continuous current rating of the fuse. The values establish one point on the time-current curve, while the live parts are available for mounting "PT", "R" and "E" triple, double and single barrel fuses. The mounting clips are available for ferrule type and clip lock style fuses.

Specifications

  • Type: current-limiting
  • Configuration: cylindrical
  • Other characteristics: medium-voltage
  • Applications: for transformers
  • Amperage: Min.: 3 A
  • VAC: Min.: 2750 V

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