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Approvals & Standards

IEC 60282-1

  • VDE 0670 part 4
  • VDE 0670 part 402
  • 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®-PTD HV fuse-links are back-up fuses as defined in the standards: IEC 60282-1 and VDE 0670 T402 and dedicated to protect transformers in combination with air or gas insulated switchgear against the thermal and dynamic 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.
Limitor®-PTD HV fuse-links are perfectly designed to be used in combination with HV switchgear.
Siemens and Ormazabal recommend Limitor®-PTD HV fuses to be used in their gas-insulated switchgear.

More specifications


HV Transformer protection

Product Specifications

Item Number


Catalog number


Item Description (ERP)

H 1209UP BCKUP T VDE292-65/80  


HV fuse, DIN , VDE, 12kV 80A, 292mm, 45mm, medium striker 80N, thermal striker  

EAN/UPC code


Rated voltage AC IEC

12   kV

Rated current

80   A

Fuse size

d=65mm, L=292mm  



Clearing I2t At Rated Voltage

87   kA²s

AC Max I.R./Breaking Capacity: I1

63   kA

Minimum breaking capacitiy (MBC)

345   A

Power Dissipation at Rated Current Value

85   W

Indication System


Indication System Type


Contact materials

Silver-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

2.2   kg

Product Diameter

65   mm

Product Length

358   mm

Sell Pack Quantity

1   EACH

Sell Pack Weight

2.2   kg

Sell Pack Width

67   mm

Sell Pack Length

390   mm

Sell Pack Height

67   mm