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Mersen TRS75R Fuse for Square D, AC Disconnect, TRS, 75A, 600VAC

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Mersen TRS75R Fuse for Square D, AC Disconnect, TRS, 75A, 600VAC

With advanced material technology added to the 

existing product, the 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.


  • Time Delay
  • Current Limiting
  • AC & DC Rated

Features and Benefits:

  • Optional Solid State SmartSpot 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 recognition
  • and replacement
  • Metal-embossed date and catalog number for
  • traceability and lasting identification
  • Fiberglass body provides dimensional stability in
  • harsh industrial settings
  • High-grade silica filler ensures fast arc quenching and 
high current limitation

TRS Ratings:

  • 1/10 to 600A, 600VAC, 200kA I.R.


  • 1/10 to 12A, 600VDC, 20kA I.R.
  • 15 to 60A, 300VDC, 20kA I.R.
  • 70 to 600A, 600VDC, 20kA I.R.


  • 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


TR-R - Class RK5 - Time-Delay

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.


  • Manufacturer: Mersen
  • Model: TRS75R
  • Length [mm (in)]: 7.88 in
  • Width [mm (in)]: 1.31 in
  • Depth [mm (in)]: 1.31 in
  • Weight [kg (lb)]: 0.68 lb

Surge/Lightning Protection



        Fuses & Holders

        • Amps [A]: 75

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