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Approvals & Standards

IEC 60282-1

  • VDE 0670 part 4
  • DIN 43625


Key features & benefits

Mersen HV fuse-links have been used for reliable protection in high-voltage switchgear and controlgear and high-voltage systems for decades.
Limitor®-P HV fuses are back-up fuses as defined in the IEC 60282-1 standard and dedicated to protect transformers against effects of short-circuit currents.
To guarantee high quality, Mersen uses the best materials: fuse-elements are in pure silver, caps are in copper coated with silver and bodies are in ceramic.

More specifications


HV Transformer protection

Product Specifications

Item Number


Catalog number



High Voltage DIN Back-up fuse for Transformer Limitor® VDE T4 17.5kVAC IEC 50A d56mm, L367mm With Striker Standard 80N  

EAN/UPC code


Rated voltage AC IEC

17.5   kV

Rated current

50   A

AC or DC


Fuse size

d=56mm, L=367mm  



Clearing I2t At Rated Voltage

50   kA²s

AC Max I.R./Breaking Capacity: I1

63   kA

Minimum breaking capacitiy (MBC)

205   A

Power Dissipation at Rated Current Value

106   W

Design Details

VDE T4  

Indication System


Indication System Type


Contact materials

Silver-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

2.2   kg

Product Diameter

56.000   mm

Product Length

433.00   mm

Sell Pack Quantity

1   EA

Sell Pack Weight

2.2   kg

Sell Pack Width

75.00   mm

Sell Pack Length

455.00   mm

Sell Pack Height

60.00   mm