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Approvals & Standards

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

Key features & benefits

Tri-Onic TR-R current-limiting time-delay fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics of the TR-R safely handle harmless starting currents and inrush currents associated with today's motors and transformers.

More specifications


  • Motor circuits
  • Mains
  • Feeders
  • Branch circuits
  • Transformers
  • Service entrance equipment
  • General-purpose equipment

Product Specifications

Item Number


Item Description (ERP)

250V 110A 7 1/8x1 9/10 TD  


Fuse Tri-Onic® 250V 110A Time-Delay Class RK5 TR Series  

EAN/UPC code


Rated voltage AC UL

250   V

Rated voltage DC UL

250   V


50/60   Hz

Rated current

110   A

ROHS Compliant


Fuse class

Class RK5  


Time Delay  



AC Max I.R./Breaking Capacity: I1

200   kA

Contact materials

Tin-Plated Copper  

Connection/Terminal Type


Body/Insulating Material


Product Weight

0.4082   kg

Product Diameter

39.7   mm

Product Length

181.1   mm

Sell Pack Quantity

1   Each

Sell Pack Weight

0.4309   kg

Sell Pack Width

39.6   mm

Sell Pack Length

39.6   mm

Sell Pack Height

185.7   mm