Medium Voltage IEEE Fuses

General Purpose Bolt-On Fuses for Transformer Protection

7.2 kV / 8.25kV Bolt-On Mount Transformer Fuses

Mersen fuses for the protection of transformers and distribution lines deliver overload and short circuit protection. These current-limiting fuses will melt at current that can be as low as 1.7 times the fuse current ratings up to its maximum interrupting rating. These fuses are designed to withstand the transformer magnetizing inrush current. They are single, double, triple or quadruple barrels 3 inch diameter (size D) with end mounts designed for bolting directly to equipment bus or terminal pads.



  • UL listed for compatibility with UL listed equipment.
  • Bolt-In mounting for direct connection to bus or terminals.
  • Current-limiting for superior equipment protection.
  • Non-venting for silent operation
  • Metal embossed catalog number and manufacturing date for lasting identification.
  • Blown-fuse indicator to give positive identification of open fuse.
  • Amp trap: 2 lb tripped force - 0.50 Inch


  • Voltage Range (VAC) 7.2 - 8.3 kV VAC
  • Ampere Range (A) 125 to 400 A
  • I.R. AC (kA) 50 kA
    65 kA
  • Speed / Characteristic E-Rated
  • Mounting Bolted
  • Connection Terminal Type Blade
  • Body Style Ferrule
  • Body Material GMG
  • Materials Contact Silver-Plated Copper
  • Standards UL Listed to
  • Application Protection for 6.9kV to 8.3kV transformers or distribution systems.
  • ROHS Compliant Consult Technical Services
  • Lead Free Consult Technical Services
  • CE conformity Consult Technical Services
  • UL File Card E143362 JEEG.E143362


  • A072B2D0R0-250E
  • A072B2D0R0-300E
  • A072B2D0R0-350E
  • A072B2D0R0-400E
  • A083B2DAR0-125E - B1009540
  • A083B2DAR0-150E - A1009539
  • A083B2DAR0-175E - Z1009538
  • A083B2DAR0-200E - Y1009537


  • CAD Drawings

    • Drawing A083B2DAR0(125-200)E :   PDF (56 KB) DXF (1.3 MB) STP (1.8 MB)
    • Drawing A072B2D0R0(250-400)E :   PDF (56 KB)



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