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7.2 kV / 8.25kV Bolt-On Mount Transformer Fuses

Approvals & Standards
Some UL Listed to standard File E143362

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.

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.

Key features & benefits

  • 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

  • Outdoor usage for the 9F62

  • Blown-fuse indicator to give positive identification of open fuse

  • Amp trap: 2 lb tripped force - 0.50 Inch

  • 9F62: 0.125 lb tripped force – 0.20 Inch

Applications

  • Protection for 5.5kV to 15.5kV transformers or distribution systems

Technical Specifications

Frequency (Hz) 50/60 Hz
Amperage Range 125 to 400 A
Speed/Characteristic E-Rated
Reach Compliant Yes
Max Operating Temp. 80 °C

Reference Finder

18 references in this series

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Item number Ampere rating Fuse size Clearing I2t At Rated Voltage Indication System Product weight
A072B2D0R0-250E See product
250A - - Yes 11.7934kg
A072B2D0R0-300E See product
300A - - Yes 11.7934kg
A072B2D0R0-350E See product
350A - - Yes 11.7934kg
A072B2D0R0-400E See product
400A - - Yes 11.7934kg
A083B1DAR0-100E See product
100A - - No 5.4431kg
A083B1DAR0-10E See product
10A - - No 5.4431kg
A083B1DAR0-15E See product
5A - - No 5.4431kg
A083B1DAR0-20E See product
20A - - No 5.4431kg
A083B1DAR0-25E See product
25A - - No 5.4431kg
A083B1DAR0-30E See product
30A - - No 5.4431kg
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