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

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