JLS050 - JLS Series Fast-Acting Fuse The JLS050 from Littelfuse is a Class J fast-acting fuse designed for space-saving overload and short-circuit protection in industrial and power conversion applications. This current-limiting fuse is ideal for electrical distributors and switchgear suppliers requiring fast, reliable protection for surge-sensitive devices and wire and cable systems. It is suitable for use in lighting solutions, variable speed drives, rectifiers, resistive loads, and solid-state devices. Specifications Manufacturer: Littelfuse Manufacturer Part #: JLS050 Amperage Rating: 50 A Voltage Rating: 600 V AC Interrupting Rating: 200,000 A RMS symmetrical Applicable Standards: UL Listed (File E81895), CSA Certified (File LR29862), Class J Standard 248-8, Federal Specification WF-1814 Dimensions: Length 4 5/8", Diameter 1 1/8" RoHS Compliant: Yes (Directive 2011/65/EU; Directive (EU) 2015/863) Product Weight: 80.1 grams Features Fast-acting for rapid overload protection Current-limiting to reduce damage from short-circuit currents Compact size ideal for limited space installations POWR-GARD® technology for maximum overcurrent protection Reliable interruption of overcurrents up to 200,000 A Suitable for power conversion devices, variable speed drives, and solid-state equipment Downloads & Links ICPTest_JLS pdf JLS Series Datasheet UL JDDZ E81895 CSA 1422-02 029862