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Approvals & Standards

  • UL listed to standard 248-12 File E2137
  • DC listed to UL standard 248
  • CSA certified to standard C22.2 No. 248.12

Key features & benefits

Amp-Trap 2000 time-delay A2D-R fuses provide IEC Type 2 "no damage" protection to existing mains, feeders, and branch circuits serving motor and non-motor loads. A2D-R fuses will open fast enough under extreme fault conditions for maximum short circuit protection to prevent damage to motor starters, switches, and other circuit components, yet also provide the time-delay needed for motor in-rush currents. A2D-R fuses can be used to replace older 250V Class H, K or RK5 fuses already installed in the field.

More specifications


  • Motors
  • Safety switches
  • Transformers
  • Branch circuit protection
  • Disconnects
  • Control panels
  • All general-purpose circuits

Product Specifications

Item Number



Fuse A2D-R - Class RK1 - Time-Delay 250VAC 250VDC 0.5A Ferrule Amp-Trap 2000®  

EAN/UPC code


Rated voltage AC UL

250   V


50/60   Hz

Rated current

0.5   A

ROHS Compliant


AC or DC


Fuse class

Class RK1  


Time Delay  



AC Max I.R./Breaking Capacity: I1

200   kA

Contact materials

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.0168   kg

Product Diameter

14.2   mm

Product Length

50.8   mm

Sell Pack Quantity

10   EA

Sell Pack Weight

0.1769   kg

Sell Pack Width

52.3   mm

Sell Pack Length

76.2   mm

Sell Pack Height

30.2   mm