Littelfuse JLLS020 Class T Fuse Fast-Acting 20A 600VAC 300VDC Industrial Cartridge

Offering advanced protection for electric services and meters, the JLLS series fuses from Littelfuse exemplify reliability in fast-acting performance. Designed for input or output configurations, these Class T fuses are particularly effective at safeguarding sensitive components such as variable speed drives and rectifiers, preventing costly damage that can be caused by short-circuit conditions. Their compact design allows for substantial space savings in panel layouts compared to traditional Class R fuses, making them an excellent choice for those looking to optimize their systems. Thanks to their extremely current-limiting capabilities, these fuses ensure rapid interruption of overcurrents, boasting impressive ratings of up to 200,000 A.I.R. This feature minimizes the thermal and magnetic stress on equipment, which can often lead to failures and costly downtime. With a fast-acting response and robust specifications, including an ampere rating of 20 and voltage capabilities of 600 VAC or 300 VDC, the JLLS series is engineered to enhance the performance and safety of electrical installations in a variety of industrial applications.

• Fast-acting overload protection for sensitive components
• Extremely current limiting to rapidly interrupt short circuits
• High interrupting rating up to 20,000 A at 300 VDC
• Melamine body with copper or bronze caps for durability
• Compact design saves panel space compared to Class R fuses
• UL Listed, CSA Certified, and RoHS compliant for safety
• Suitable for 600 VAC and 300 VDC electrical systems
• Protects individual electric services and meters

• Voltage: 600 VAC, 300 VDC
• Amperage: 20 A
• Interrupting Rating: 20,000 A @ 300 VDC
• Opening: Fast-Acting (F)
• Material: Melamine body, copper or bronze caps
• Size: Less than 1/3 size of Class R fuses
• Compliance: UL Listed, CSA Certified, RoHS Compliant
• Country of Origin: Mexico

Datasheets

Certification

ICP Test Report