Littelfuse FLNR400ID Indicator Fuse 400A 250VAC 300000A Time-Delay Knife-Blade

Enhancing safety and operational efficiency, the FLNR_ID Series Indicator fuses from Littelfuse are specially designed for use in various industrial applications, including control panels and motor controllers. These fuses feature a built-in indication mechanism that clearly signals whether a fuse has blown, allowing machine operators to quickly ascertain the status without the need for testing, thus minimizing downtime and reducing accidents associated with live circuits. The unique time-delay characteristics of these fuses not only protect against overloads and short circuits but also help minimize nuisance openings, extending their lifespan and effectiveness. With a robust interrupting rating of 300,000A at 250VDC and an impressive ampere rating of 400, these knives-blade fuses can be integrated into multiple applications, simplifying inventory management while ensuring reliable protection for your electrical systems.

• Built-in blown fuse indication for enhanced safety
• Time-delay dual-element design minimizes nuisance openings
• High interrupting rating of 300,000A for short circuit protection
• 400 ampere rating suitable for industrial high-current applications
• Knife-blade design ensures reliable and secure connection
• UL Listed, CSA Certified, and meets Federal Specification WF-1814
• Dual-element construction protects against overload and short circuit
• Indicating fuse simplifies maintenance by eliminating fuse testing
• Compatible with industrial control panels and motor controllers
• Reduces fuse inventory by covering multiple applications

• Ampere Rating: 400 A
• Voltage Rating AC: 250 V
• Voltage Rating DC: 125 V
• Interrupting Rating DC: 300 kA @ 250 VDC
• Fuse Type: Slo-Blo/Time Lag (T)/Time Delay, Dual Element
• Dimensions (Length): 5.7–10.6 in (149.2–269.3 mm)
• Series: FLNR_ID
• Compliance: UL Listed, CSA Certified, Federal Spec WF-1814

Certification

Datasheets