Mersen FTS300R - Current-Limiting Fuse 300A (RK5 Class, 200kA AIC)

The Mersen FTS300R is a low-voltage current-limiting fuse designed for high-performance circuit protection in industrial power distribution systems. It features a 600V AC voltage rating and 300A current rating with exceptional 200kA interrupting capacity at 600V for reliable fault protection. Constructed as a single-barrel RK5 class fuse with compact Flat-Trap design, this unit provides current limitation and energy limitation capabilities. The fuse meets industry standards for current-limiting fuses and is UL recognized for safety compliance. Typical applications include motor circuit protection, feeder circuit protection, and service entrance equipment in commercial and industrial facilities.

Key Features & Specifications

• Type: Current-limiting fuse, single barrel, RK5 class, Flat-Trap design
• Voltage Rating: 600V AC
• Current Rating: 300A
• Dimensions: Compact Flat-Trap configuration
• Standards: UL recognized, industry standard compliance
• Applications: Motor circuit protection, feeder circuits, service entrance equipment
• AIC rating: 200kA@600V
• Class Rating: RK5
• Barrels: 1
• Family: Flat-Trap
• Item Subcategory: Low Voltage
• Weight: 4 lb
• Manufacturer: Mersen