Littelfuse FLSR090ID is a 90 A, 600 VAC class RK5 time-delay blade fuse with an integral blown-indicator window for quick fault visibility. It is rated for 300 VDC operation and can interrupt up to 20 kA at 300 VDC, making it suitable for high-current protection in automotive and industrial power-distribution circuits. The "ID" suffix signifies the indicating (visual) variant in the FLSR_ID family, which uses blade/knife terminals for inline replacement. With a continuous 90 A rating and a 600 VAC maximum, this Littelfuse fuse delivers rugged protection where visible status and RK5 compatibility are important.
