Littelfuse FLSR045ID Indicator Fuse 45A 600VAC 300VDC Time Delay 20000A@300VDC Industrial Cartridge

The FLSR045ID from Littelfuse is an advanced indicator fuse designed to enhance safety and efficiency in a wide range of industrial applications. This indicator fuse serves as an essential component for switchboards, motor control centers, and panelboards, providing reliable overload and short-circuit protection that significantly reduces potential equipment damage. One standout feature is the intuitive indicating window, allowing operators to quickly identify blown fuses without any testing – if the window is dark, maintenance can be immediately requested, minimizing downtime. Engineered with superior time-delay characteristics, the FLSR045ID helps reduce nuisance openings and extends the overall life of the fuse. By decreasing the inventory needed for fuse replacements, it proves invaluable for optimizing operational efficiency. Furthermore, its construction promotes safety by minimizing exposure to live circuits, eliminating the guesswork that often accompanies conventional blown fuse indicators. With a package size suitable for industrial settings and a robust interrupting rating of 20,000A at 300VDC, this fuse is built to meet the demanding needs of general-purpose circuits while ensuring operational continuity.

• Minimizes exposure to live circuits for enhanced operator safety
• Dual-element design for advanced short circuit and overload protection
• High interrupting rating of 20,000A at 300 VDC for industrial safety
• Time-delay feature reduces nuisance openings and extends fuse life
• Indicator window for quick blown fuse identification without testing
• Compatible with switchboards, motor control centers, and panelboards
• Reduces fuse inventory through versatile time-delay and multi-voltage ratings
• UL Listed, CSA Certified, and QPL WF-1814 approved for reliable compliance

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 45 A
• Interrupting Rating: 200 kA AC rms symmetrical, 20 kA DC
• Opening: Slo-Blo/Time Lag (T)/Time Delay
• Fuse Type: Dual Element, Time Delay, Current Limiting
• Series: FLSR_ID
• Approvals: UL Listed, CSA Certified, QPL WF-1814

Certification

Datasheets