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Approvals & Standards

IEC 60282-1

  • UTE C64-210

Key features & benefits

FR-type fuses are designed to protect HV/LV power distribution transformers. Designed to be coordinated with other equipment, these current limiting fuse-links interrupt fault currents before they reach their peak. The fault current is interrupted inside the fuse-link body and although this is very fast, there is no sign of it outside.
The 24kV fuses were specially designed with very low power losses, for use in SF6-insulated or compact air-insulated fused switchgear combinations
The main elements in these fuses are: a barrel of class F insulating synthetic material, nickel plated aluminium end contacts, pure silver fuse elements and a composite material fuse element holder to withstand high temperatures.
Thanks to their structure, based on a synthetic material, FR fuse-links are the perfect answer to the stress involved in use inside HV bays and fuse-link chambers.

More specifications


HV Transformers protection

  • Fused switch gear combination
  • Best used in SF6 insulated switch gear and compact switch gear
  • For indoor use
  • Operating temperature: -25°C to +40°C

Product Specifications

Item Number


Catalogue No.


Item Description (ERP)

FR 24/6,3  

Short Description

Limitor® HV NF/UTE 24kV ECO Type FR  



Rated voltage AC IEC

24   kV

Ampere Rating

6.3   A

Fuse Size

d=55mm, L=520mm  



Clearing I2t At Rated Voltage

0.32   kA²s

AC Max I.R./Breaking Capacity: I1

12.5   kA

Min Interrupting Rating (MBC)

31.5   A

Power Dissipation at Rated Current Value

25   W

Connection/Terminal Material

Nickel-Plated Aluminum  

Connection/Terminal Type


Body/Insulating Material

Class F insulating synthetic material  

Product Weight

2.1   kg

Product Diameter

55   mm

Product Length

520   mm

Sell Pack Quantity

3   EACH

Sell Pack Weight

6.3   kg

Sell Pack Width

270   mm

Sell Pack Length

570   mm

Sell Pack Height

90   mm