Littelfuse FLSR040ID Indicator Fuse 40A Slo-Blo Time Delay 600VAC 300VDC Industrial Cartridge

The FLSR_ID Series from Littelfuse is designed with advanced features to enhance electrical safety and efficiency in various industrial applications. These Indicator fuses provide exceptional overload and short circuit protection, crucial for minimizing equipment damage across motor control center mains and branch circuits. With their superior time-delay characteristics, they help reduce nuisance openings, ultimately extending fuse life and decreasing operational interruptions. One of the standout features of the FLSR_ID Indicator fuse is its innovative indicating window, which allows for quick and easy identification of a blown fuse without the need for testing. When the window is dark, it clearly signifies that the fuse has opened, enabling machine operators to promptly notify maintenance personnel for a replacement. This design not only reduces downtime but also enhances overall safety by minimizing exposure to live circuits during maintenance. Furthermore, these Indicator fuses are versatile enough to be utilized across a wide range of applications, including service entrance switches and industrial control panels, leading to a reduction in fuse inventory. With a robust construction that includes a 40 ampere rating and a high interrupting capacity, the FLSR_ID Series offers reliable protection for fully-rated panelboards and loadcenters, ensuring that operations run smoothly and efficiently.

• Built-in indicating window shows fuse status without testing
• Current limiting design enhances short circuit protection
• Dual-element time-delay reduces nuisance openings and extends fuse life
• High interrupting capacity for reliable industrial operation
• Reduces equipment damage with superior overload protection
• Minimizes exposure to live circuits for increased safety
• Versatile use across motor control centers and service entrance switches
• Robust construction protects fully-rated panelboards and loadcenters
• Reduces fuse inventory with broad application compatibility
• UL Listed, CSA Certified, and QPL for safety and compliance

• Amperage: 40 A
• Voltage AC: 600 V AC
• Voltage DC: 300 V DC
• Fuse Type: Dual Element, Time Delay
• Interrupting Rating DC: 20,000 A @ 300 V DC
• Interrupting Rating AC: 200 kA rms symmetrical
• Current Limiting: Yes
• Opening: Slo-Blo/Time Lag/Time Delay
• Series: FLSR_ID
• Approvals: UL Listed, CSA Certified, QPL Federal Specification WF-1814

Certification

Datasheets