TR300R Mersen Tri-Onic Low Voltage Fuse 250V 300A Fuse - Essential Electric Supply
TR300R Mersen Tri-Onic Low Voltage Fuse 250V 300A Fuse - Essential Electric Supply

Mersen TR300R - TR Fuse 300A (200kA@250V RK5 Class)

Mersen
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Mersen TR300R is a low-voltage current-limiting fuse designed for circuit protection in industrial electrical systems. This RK5-class TR-type fuse features a 300A current rating and 250V voltage rating with a high interrupting capacity of 200kA at rated voltage. The single-barrel construction measures 2.06" in diameter and weighs 1 lb, utilizing Mersen's Tri-Onic technology for reliable time-delay operation and short-circuit protection. It complies with industry standards for low-voltage fuses, making it suitable for motor branch circuits, transformers, and feeder protection in commercial and industrial power distribution systems.

Key Features & Specifications
  • Type: Tri-Onic time-delay current-limiting fuse (RK5 class)
  • Voltage Rating: 250V AC
  • Current Rating: 300A
  • Dimensions: 2.06" diameter single-barrel design
  • Standards: UL/CSA listed
  • Applications: Motor circuits, transformers, feeders
  • AIC rating: 200kA@250V
  • Class Rating: RK5
  • Weight: 1 lb
Product Identification
  • UPC: 782001748135
  • GTIN: 00782001748135