Description
The Littelfuse FLNR300 is a 300 amp, 250 V time-delay Class RK5 fuse engineered for high-capacity overcurrent protection in demanding industrial and commercial electrical systems. Featuring a dual-element slow-blow design, it allows temporary inrush currents—such as those from motors, transformers, and inductive loads—to pass without nuisance openings while still delivering strong protection against sustained overloads and short circuits. Built with a knife-blade construction, the FLNR300 ensures secure connections in high-current applications and reliable long-term performance. With excellent current-limiting capability and a high interrupting rating, this fuse is ideal for power distribution systems, motor control centers, and heavy-duty equipment protection.
Key Features:
- 300 amp current rating for heavy-duty circuit protection
- 250 V AC / 125 V DC voltage rating
- Time-delay (dual-element slow blow) design handles inrush currents
- Class RK5 fuse for strong current-limiting performance
- High interrupting capacity (up to 200–300 kA class typical)
- Knife-blade construction for secure high-current connections
- Ideal for motors, transformers, and power distribution systems
