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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 SmartSpot 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

Frequency (Hz)

50/60   Hz

Ampere range

1/10 to 600 A  

Fuse class

Class RK1  


Time Delay  

Flammability rating

94 V-0  

UL file number

File E2137  

UL Category Code


CSA File number

Class 1422-02 Guide 012636_0  

REACH Compliant


Max Operating Temp.

80   °C

Max Storage Temp.

80   °C

Min Storage Temp.

-25   °C

Harmonized System


References in this serie  (60)

Item number - Catalog No.

Ampere rating

Fuse size

Total Clearing I2t

Indication System

Product weight


0.1   A




0.0181   kg


0.5   A




0.0181   kg


100   A




0.1406   kg


10   A




0.0181   kg


1.25   A




0.0181   kg