Fuse Tri-Onic Time-Delay Class RK5 250V 25A 2 Inch
Mersen

Mersen TR25R Fuse Tri-Onic Time-Delay Class RK5 250V 25A 2 Inch

  • MPN: TR25R
  • UPC: 782001747855
  • PPN: FER-TR25R

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$4.59

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Spec sheet

Description

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.

Features

  • Engineered with an advanced dual-element time-delay configuration, the TR25R temporarily tolerates harmless starting currents and transformer inrush loads without blowing. This calibrated performance delay eliminates frustrating nuisance trips, keeping your industrial conveyor lines, pumps, and HVAC equipment running continuously while maintaining critical protection.
  • As a Class RK5 current-limiting fuse, it responds to major short-circuit faults within milliseconds, choking off destructive peak currents before they can reach downstream electrical components. By minimizing the total let-thru energy during a fault, this unit prevents catastrophic panel damage and reduces arc-flash hazards for nearby facility maintenance personnel.
  • As a Class RK5 current-limiting fuse, it responds to major short-circuit faults within milliseconds, choking off destructive peak currents before they can reach downstream electrical components. By minimizing the total let-thru energy during a fault, this unit prevents catastrophic panel damage and reduces arc-flash hazards for nearby facility maintenance personnel.
  • Boasting a massive 200,000-amp AC interrupting rating at 250V AC (and 20,000 amps at 160V DC), this versatile fuse delivers reliable overcurrent defense for the most demanding main, feeder, and branch circuits. It easily handles modern high-fault utility services, guaranteeing that your facility's critical infrastructure remains safe and fully compliant with UL 248-12 and CSA standards.
  • Constructed with a dimensionally stable fiberglass outer tube and packed with high-grade silica filler, this fuse provides exceptionally fast arc quenching and internal pressure containment. This industrial-grade housing prevents physical housing ruptures, deformation, and electrical carbon tracking, even when subjected to severe ambient heat or repetitive thermal cycling.

Documentation & Downloads

Specifications

Additional

Voltage
250 V AC, 160 V DC
Interrupting Rating
200 kA AC, 20 kA DC
Length
2 in
Connection Material
Copper
Frequency
50/60 Hz
Material
Fiberglass body, high-grade silica filler
Compliance
UL Listed, CSA Certified, RoHS Compliant
Amperage25 A
Fuse ClassClass RK5 Time Delay
Connection TypeFerrule
Mounting TypeClip
Body MaterialPolyTube
Weight0.037 lb

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