Littelfuse FLSR.300ID Industrial Cartridge Fuse 0.3A 600VAC 300VDC Slo-Blo Time Lag 20000A Indicating

The FLSR_ID Series by Littelfuse represents a significant advancement in fuse technology, designed specifically for flexibility and performance in various industrial applications. These service entrance switches and indicator fuses are engineered to reduce inventory needs, as their superior performance allows them to function across a wide range of operations. By utilizing Slo-Blo/Time Lag characteristics, they minimize nuisance openings and extend the life of the fuse, ensuring reliable protection against overloads and short circuits. What sets the FLSR_ID fuses apart is their ability to enhance safety and efficiency; the built-in blown fuse indication system provides a clear visual cue—if the indicating window remains dark, an open fuse can be instantly recognized, eliminating the need for manual testing and allowing for quick maintenance responses. Ideal for use in switchboards, distribution panelboards, industrial control panels, and various other settings, these fuses maintain operational integrity while improving overall safety and minimizing costly downtime.

• Built-in blown fuse indication for quick visual status
• Dual-element design provides advanced short circuit and overload protection
• Slo-Blo/Time Lag characteristic reduces nuisance openings and extends fuse life
• Current limiting minimizes damage during faults
• Wide ampere range (1/10 - 600 A) suits versatile industrial applications
• Rated for 600 V AC and 300 V DC use
• Compatible with service entrance switches, switchboard mains, and feeder switches
• Suitable for motor control centers, industrial control panels, and motor branch circuits
• UL Listed, CSA Certified, and QPL WF-1814 compliant for safety assurance
• Reduces inventory needs by covering multiple operational applications

• Voltage Rating AC: 600 V
• Voltage Rating DC: 300 V
• Ampere Rating: 0.3 A
• Ampere Range: 1/10 - 600 A
• Interrupting Rating DC: 20,000 A @ 300 VDC
• Fuse Type: Dual Element, Time Delay, Indicator
• Standard: Class RK5
• Compliance: UL Listed, CSA Certified, QPL WF-1814

Certification

Datasheets