Cut Sheet

 
Applications:
 Motor circuits
 Mains
 Feeders
 Branch circuits
 Transformers
 Service entrance equipment
 General-purpose equipment
Highlights:
 Time-delay
 Current-limiting
 AC & DC rated
TR-R & TRS-R Time-delay/Class RK5
The industry’s most popular fuse for motor circuit protection
With advanced material technology added to the existing product, the Tri-Onic
®
TR
and TRS current-limiting time-delay fuses are engineered for overcurrent protection of
motors and transformers, service entrance equipment, feeder and branch circuits. Tri-
Onic fuse’s proven time-delay characteristic safely handles harmless starting currents
and inrush currents associated with today’s motors and transformers. Now available
with optional SmartSpot
®
blown fuse indication technology.
Ratings:
   
    
: 250VAC
: 250VDC (.1-2.8A; 35-400A)
: 160VDC (3-30A; 450-600A)
   
: 1/10 to 600A
 
: 200kA I.R. AC / 20kA I.R. DC
    
    
: 600VAC
: 600VDC (.1-12A; 70-600A)
: 300VDC (15-60A)
   
: 1/10 to 600A
 
: 200kA I.R. AC
: 1/10A to 60A -> 20kA I.R. DC
: 70A to 600A -> 100kA I.R. DC
Features/Benefits:
 Optional solid state SmartSpot blown fuse indicator
 Time-delay for motor start-ups and transformer inrush currents without
nuisance opening
 Current-limiting for low peak let-thru current
 Rejection-style design prevents replacement errors (when used with
recommended fuse blocks)
 Easy-to-read label for quick brand recognition and replacement
 Metal-embossed date and catalog number for traceability and lasting
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 Fiberglass body provides dimensional stability in harsh industrial settings
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limitation
Approvals:
 UL listed to standard 248-12 File
E2137
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no. 248.12
 DC listed to UL standard 248
TRS only