Mersen, formerly Ferraz Shawmut TR-R, TRS-R Catalog Page
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
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
identication
• Fiberglass body provides dimensional stability in harsh industrial settings
• High-grade silica ller ensures fast arc quenching and high current
limitation
Highlights:
• Time-delay
• Current-limiting
• AC & DC rated
blown fuse indication technology.
Applications:
• Motor circuits
• Mains
• Feeders
• Branch circuits
• Transformers
• Service entrance equipment
• General-purpose equipment
Ratings:
TR-R
Volts : 250VAC
: 250VDC (.1-2.8A; 35-400A)
: 160VDC (3-30A; 450-600A)
Amps : 1/10 to 600A
IR : 200kA I.R. AC / 20kA I.R. DC
TRS-R
Volts : 600VAC
: 600VDC (.1-12A; 70-600A)
: 300VDC (15-60A)
Amps : 1/10 to 600A
IR : 200kA I.R. AC
: 1/10A to 60A -> 20kA I.R. DC
: 70A to 600A -> 100kA I.R. DC
Approvals:
• UL listed to standard 248-12 File
E2137
• CSA certied to standard C22.2
no. 248.12
• DC listed to UL standard 248
TRS only
B2
TR-R & TRS-R Time-delay/Class RK5
Catalog Numbers (amps)
250V 600V
TR1/10R* TR3-1/2R* TR50R TRS1/10R* TRS3-1/2R* TRS50R
TR15/100R* TR4R* TR60R TRS15/100R* TRS4R* TRS60R
TR2/10R* TR4-1/2R* TR70R TRS2/10R* TRS4-1/2R* TRS70R
TR3/10R* TR5R* TR75R* TRS3/10R* TRS5R* TRS75R*
TR4/10R* TR5-6/10R* TR80R TRS4/10R* TRS5-6/10R* TRS80R
TR1/2R* TR6R* TR90R TRS1/2R* TRS6R* TRS90R
TR6/10R* TR6-1/4R* TR100R TRS6/10R* TRS6-1/4R* TRS100R
TR8/10R* TR7R* TR110R TRS8/10R* TRS7R* TRS110R
TR1R* TR8R TR125R TRS1R* TRS8R TRS125R
TR1-1/8R* TR9R TR150R TRS1-1/8R* TRS9R TRS150R
TR1-1/4R* TR10R TR175R TRS1-1/4R* TRS10R TRS175R
TR1-4/10R* TR12R TR200R TRS1-4/10R* TRS12R TRS200R
TR1-6/10R* TR15R TR225R TRS1-6/10R* TRS15R TRS225R
TR1-8/10R* TR17-1/2R TR250R TRS1-8/10R* TRS17-1/2R TRS250R
TR2R* TR20R TR300R TRS2R* TRS20R TRS300R
TR2-1/4R* TR25R TR350R TRS2-1/4R* TRS25R TRS350R
TR2-1/2R* TR30R TR400R TRS2-1/2R* TRS30R TRS400R
TR2-8/10R* TR35R TR450R TRS2-8/10R* TRS35R TRS450R
TR3R* TR40R TR500R TRS3R* TRS40R TRS500R
TR3-2/10R* TR45R TR600R TRS3-2/10R* TRS45R TRS600R
Note: Optional blown fuse visual indication available. To order, place “ID” at the end of the catalog number. Example: #TRS30RID
* Not available with optional blow fuse indicator.
Tin plated end caps are available on Non-ID fuses less than 60A. Example Part # TRP30R, TRSP30R
Recommended Fuse Blocks With
Box Connectors For Tri-Onic
Class RK5 Fuses
Fuse
Ampere
Rating
0-30 20306R 20308R 60306R 60308R
31-60 20606R 20608R 60606R 60608R
61-100 21036R 21038R 61036R 61038R
101-200 22001R 22003R 62001R 62003R
201-400 24001R 24003R 64001R 64003R
401-600 2631R 2633R 6631R 6633R
A variety of pole configurations and termination provisions
are available. Refer to Section H for details.
250V 600V
1-Pole 3 -Pole 1-Pole 3-Pole
Catalog Number
®
B
Dimensions
Ampere Rating
250V-TR Fuses
0-30 2 51 9/16 14 - - - - - -
31-60 3 76 13/16 21 - - - - - -
61-100 5-7/8 149 1-1/16 27 1/8 3 3/4 19 1 25
101-200 7-1/8 181 1-9/16 40 3/16 5 1-1/8 28 1-3/8 35
201-400 8-5/8 219 2-1/16 53 1/4 6 1-5/8 41 1-7/8 48
401-600 10-3/8 264 2-9/16 66 1/4 6 2 51 2-1/4 57
600V-TRS Fuses
0-30 5 127 13/16 21 - - - - - -
31-60 5-1/2 139 1-1/16 27 - - - - - -
61-100 7-7/8 200 1-5/16 34 1/8 3 3/4 19 1 25
101-200 9-5/8 244 1-13/16 46 3/16 5 1-1/8 28 1-3/8 35
201-400 11-5/8 295 2-9/16 66 1/4 6 1-5/8 41 1-7/8 48
401-600 13-3/8 340 3-1/8 80 1/4 6 2 51 2-1/4 57
A B C D E
In. mm In. mm In. mm In. mm In. mm
0-60A
61-600A
B3
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