Littelfuse FLNR500ID Class RK5 Indicator Fuse 500A 300000A@250VDC Slo-Blo Knife-Blade

The FLNR500ID from Littelfuse’s FLNR_ID Series is an advanced solution designed for industrial control panels, distribution panelboards, and motor control centers. With an impressive interrupting rating of 300,000A at 250VDC, these fuses provide robust overload and short-circuit protection, significantly reducing the risk of equipment damage. A standout feature of the FLNR_ID Indicator fuses is their built-in blown fuse indication, allowing machine operators to quickly identify open fuses without testing; a simple glance at the indicator window reveals whether a fuse is intact or has opened—facilitating efficient maintenance. This design not only reduces downtime but also minimizes inventory needs due to their versatile applications across various circuits, from service entrance switches to fully-rated panelboards. Additionally, the time-delay characteristics of these fuses help prevent nuisance openings, extending their lifespan and enhancing safety by reducing exposure to live circuits. Overall, these fuses truly exemplify dependable performance in demanding environments.

• Built-in blown fuse indication for instant open fuse detection
• Current limiting to reduce arc flash hazards and equipment damage
• Time-delay (Slo-Blo) design to prevent nuisance openings and extend fuse life
• Dual-element design providing advanced overload and short-circuit protection
• High interrupting rating of 300,000A at 250VDC for robust short-circuit protection
• Suitable for industrial control panels, distribution panelboards, and motor control centers
• Versatile application across service entrance switches and fully-rated panelboards
• UL Listed, CSA Certified, QPL, and CE approvals ensuring safety and compliance
• Indicator window enabling efficient maintenance and reduced downtime
• Class RK5 rating for reliable performance in demanding industrial environments

• Interrupting Rating: 300000 A @ 250 VDC
• Voltage: 250 V AC, 125 V DC
• Amperage: 500 A
• Fuse Type: Dual Element, Time Delay (Slo-Blo/Time Lag)
• Fuse Series: FLNR_ID
• Approvals: UL Listed, CSA Certified, QPL, CE, Standard 248-12, Class RK5
• Length: 5.88 in (149.2 mm)

Certification

Datasheets