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Approvals & Standards

  • UL Recognized Component File E60314
  • DC Tested to UL248-1 (1-600A)

Key features & benefits

Mersen Form 600 fuses are the original current-limiting fuses, predating all the standards. Their 500V DC rating (through 600A) is a useful feature for special fusing applications. Form 600 fuses provide a high degree of current limitation in AC and DC applications. Types 1 and 3 are dimensionally interchangeable with Class H and K fuses. Types 4 and 5 have unique rejection dimensions and are not interchangeable.

More specifications

Product Specifications

Item Number


Item Description (ERP)

90480-FUSE,FORM 600  

Short Description

Form 600 Fuse 600V 100A Type 21 Blade Mount A6Y Series  



Rated voltage AC UL

600   V

Rated voltage DC UL

500   V


50/60   Hz

Ampere Rating

100   A



AC Max I.R./Breaking Capacity: I1

200   kA

L/R (ms)


Body/Insulating Material


Product Weight

0.35   lb

Product Diameter

1.06   in

Product Length

5.88   in

Sell Pack Quantity

5   Each

Sell Pack Weight

1.84   lb

Sell Pack Width

5.38   in

Sell Pack Length

1.06   in

Sell Pack Height

6   in