Littelfuse FLNR250ID Knife-Blade Slo-Blo Time Delay Fuse 250A 250VAC 125VDC 300000A Interrupting Rating

The FLNR250ID, part of Littelfuse's FLNR_ID Series, is an essential component designed to enhance the safety and efficiency of various industrial electrical applications. Ideal for motor control center mains and motor branch circuits, it offers robust protection for fully-rated panelboards, load centers, and distribution panelboards. Notably, the built-in indicator feature allows for instant identification of blown fuses without the need for testing or powering down. This not only minimizes downtime, as machine operators can quickly alert maintenance personnel of any issues, but also significantly reduces the risk of accidents by lowering exposure to live circuits. Beyond its safety features, this fuse is engineered with superior overload and short-circuit protection, effectively reducing potential equipment damage while also lasting longer due to its optimized time-delay and cycling characteristics. Its versatility across various applications allows for decreased fuse inventory, making the FLNR250ID a practical choice for general-purpose circuits, combination motor controllers, and service entrance switches. With an impressive interrupting rating of 300,000A at 250V DC and an ampere rating of up to 250A, this knife-blade fuse seamlessly combines reliability and performance, making it an indispensable tool for modern industrial settings.

• Built-in indicator for instant blown fuse identification
• Time-delay slo-blo design for superior overload and short-circuit protection
• High interrupting rating of 300,000A at 250 VDC for enhanced safety
• Dual voltage ratings suitable for 125 VDC and 250 VAC applications
• Reduces downtime by enabling quick maintenance response
• Improves safety by minimizing exposure to live circuits
• Optimized cycling characteristics for longer fuse life
• Versatile use across general-purpose circuits and combination motor controllers
• Compatible with motor control center mains and motor branch circuits
• Protection for fully-rated panelboards, load centers, and distribution panelboards

• Voltage DC: 125 VDC
• Voltage AC: 250 VAC
• Interrupting Rating DC: 300,000 A @ 250 VDC
• Interrupting Rating AC: 200 kA rms symmetrical
• Ampere Rating: 250 A
• Opening: Slo-Blo / Time Delay

Certification

Datasheets