Littelfuse FLSR003ID Indicator Fuse 3A 600V 20000A@300VDC Slo-Blo Time Delay Industrial Cartridge

The FLSR003ID from Littelfuse belongs to the FLSR_ID Series, designed to offer exceptional protection and ease of use in various industrial applications. This indicator fuse features a clear window that provides immediate visual feedback on fuse status, allowing machine operators to quickly identify any open fuses without the need for testing. With a robust interrupting rating of 20,000A at 300VDC and a time-delay mechanism, it effectively reduces downtime while minimizing the risk of unnecessary fuse replacements and equipment damage. Ideal for motor control center mains, service entrance switches, and general-purpose circuits, these indicator fuses play a crucial role in enhancing safety by limiting exposure to live circuits and ensuring that operators can safely handle maintenance tasks. Their superior overload protection, combined with time-delay characteristics, allows for greater flexibility across various applications, leading to a significant reduction in the inventory of replacement fuses required.

• Clear window indicator for immediate fuse status visibility
• Dual-element design for short circuit and overload protection
• Time-delay (Slo-Blo) mechanism reduces unnecessary fuse replacements
• High interrupting rating of 20,000A at 300V DC for fault protection
• Minimizes exposure to live circuits to enhance operator safety
• Reliable overload and short circuit protection reduces downtime
• Versatile use across motor control center mains, service switches, and general circuits
• Current limiting enhances equipment safety
• Industrial cartridge design ensures secure, standardized installation
• Reduces fuse inventory needs through superior performance and application flexibility

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 3 A
• Interrupting Rating: 20,000 A @ 300 V DC
• Opening: Time Delay (Slo-Blo)
• Size: Industrial Cartridge
• Dimensions FLNR 1/10–30A: 2 in x 1/2 in x 1/2 in (50.8 mm x 12.7 mm x 12.7 mm)
• Dimensions FLSR 1/10–30A: 5 in x 3/4 in x 5/8 in (127 mm x 19.1 mm x 15.9 mm)
• Dimensions FLNR 35–60A: 3 in x 3/4 in x 5/8 in (76.2 mm x 19.1 mm x 15.9 mm)
• Dimensions FLSR 35–60A: 5 1/2 in x 1 in x 5/8 in (139.7 mm x 25.4 mm x 15.9 mm)
• Dimensions FLNR 70–100A: 5 5/8 in x 1 in x 1 1/8 in (149.2 mm x 25.4 mm x 28.6 mm)
• Dimensions FLSR 70–100A: 7 7/8 in x 1 1/4 in x 1 1/8 in (200 mm x 31.8 mm x 28.6 mm)
• Dimensions FLNR 110–200A: 7 1/8 in x 1 1/2 in x 1 15/32 in (181 mm x 38.1 mm x 37.3 mm)
• Dimensions FLSR 110–200A: 9 5/8 in x 1 3/4 in x 1 15/32 in (244.5 mm x 44.5 mm x 37.3 mm)
• Dimensions FLNR 225–400A: 8 5/8 in x 2 in x 1 15/16 in (219 mm x 50.8 mm x 49.2 mm)
• Dimensions FLSR 225–400A: 11 5/8 in x 2 1/2 in x 2 in (295.3 mm x 63.5 mm x 50.8 mm)
• Dimensions FLNR 450–600A: 10 3/8 in x 2 1/2 in x 2 3/8 in (263.5 mm x 63.5 mm x 60.3 mm)
• Dimensions FLSR 450–600A: 13 3/8 in x 3 in x 2 13/32 in (339.7 mm x 76.2 mm x 61.1 mm)

Certification

Datasheets