FLSR.400 - FLSR Series

FLSR.400 - FLSR Series Fuse | Electrical Protection Solutions The Littelfuse FLSR series fuse is a UL Class RK5 dual-element time-delay fuse designed for advanced short circuit and overload protection. It is widely used by electrical distributors and switchgear suppliers for protecting circuits, especially those with motors. The FLSR series provides reliable performance in various applications, including service entrance switches, transformers, switchboard mains and feeders, motor control central mains, and general-purpose circuits. Specifications Manufacturer: Littelfuse Manufacturer Part Number: FLSR.400 Amperage Rating: 0.4 A Voltage Rating AC: 600 V Voltage Rating DC: 300 V Interrupting Rating AC: 300 kA rms symmetrical (Littelfuse self-certified) Interrupting Rating DC: 20 kA Ampere Range: 1/10 – 600 A Approvals: UL Listed (File: E81895), CSA Certified (File: LR29862), Federal Specification WF-1814 (QPL-W-F-1814) Product Weight: 1590 g UPC: 079458170931 Features Dual-element time-delay design for superior short circuit and overload protection Available in indicating and non-indicating versions Current limiting capability to reduce damage during fault conditions Widely used and trusted for motor circuit protection and general-purpose applications Downloads & Links FLNR and FLSR Series Datasheet UL JDDZ E81895 CSA 1422-02 029862