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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)

FORM 600 150A 600V  

Short Description

Form 600 Fuse 600V 150A Type 21 Blade Mount A6Y Series  



Rated voltage AC UL

600   V

Rated voltage DC UL

500   V

Ampere Rating

150   A



AC Max I.R./Breaking Capacity: I1

200   kA

L/R (ms)


Connection/Terminal Material

Silver-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.4082   kg

Product Diameter

38.1   mm

Product Length

149.4   mm

Sell Pack Quantity

1   Each

Sell Pack Weight

0.4309   kg

Sell Pack Width

39.6   mm

Sell Pack Length

185.7   mm

Sell Pack Height

39.6   mm