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PHP-NF/HTA-UTE-MSL

Limitor® - NF/UTE Back-up Fuses, 7,2kV to 24kV - Type FR

Approvals & Standards
IEC 60282-1
UTE C64-210

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.

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.

Key features & benefits

  • Superior mechanical strength

  • Outstanding withstand to operating stresses

  • 100% synthetic structure

  • Reduce power losses by 30 to 40% (24kV)

  • Average type striker: force 1 ±0.5 Joules

  • High breaking capacity

  • High current limitation

  • EDF Approval which guarantees high performances and quality of fuses manufactured (24kV)

  • In accordance with:

  • IEC 62271-105

  • IEC 62271-107

  • IEC 60787

  • IEC/TR 62655

Applications

  • 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

Technical Specifications
Voltage Range 7.2 ... 24 kV
Amperage Range 6.3 ... 125 A
CE Conformity 1
Reach Compliant Yes
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