Skip to main content

All locations

Please select your country & language

China | 中国
Germany | Deutschland

Your country is not in the list?

Go to our international website:

Mersen EP International website
Contact us

Approvals & Standards

  • Some UL Listed to standard File E143362

Key features & benefits

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.

More specifications

Applications

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

Product Specifications

Frequency (Hz)

50/60   Hz

Ampere range

10 to 1200 A  

Speed/Characteristic

E-Rated  

UL file number

File E143362  

UL Category Code

JEEG  

REACH Compliant

Yes  

Max Operating Temp.

80   °C

Max Storage Temp.

80   °C

Min Storage Temp.

-25   °C

Harmonized System

853510  

References in this series  (33)

A055B1DAR0-30E

30   A

-

-

Yes  

5.4885   kg

A055B1DAR0-40E

40   A

-

-

Yes  

5.4885   kg

A055B1DAR0-50E

50   A

-

-

Yes  

5.4885   kg

A055B1DAR0-65E

65   A

-

-

Yes  

5.4885   kg

A055B1DAR0-80E

80   A

-

-

Yes  

5.4885   kg

A055B2D0R0-450E

450   A

-

-

Yes  

12.9047   kg

A055B2D0R0-500E

500   A

-

-

Yes  

12.9047   kg

A055B2D0R0-600E

600   A

-

-

Yes  

12.9047   kg

A055B2DAR0-250E

250   A

-

-

Yes  

10.3419   kg

A055B2DAR0-300E

300   A

-

-

Yes  

10.3419   kg

A055B2DAR0-350E

350   A

-

-

Yes  

10.3419   kg

A055B2DAR0-400E

400   A

-

-

Yes  

10.3419   kg

A055B2DAR0-450E

450   A

-

-

Yes  

10.3419   kg

A055B2DSR0-450E

450   A

-

-

Yes  

10.4326   kg

A055B2DSR0-500E

500   A

-

-

Yes  

10.4326   kg