Littelfuse JLS090 Class J Fuse 90A 600V Fast-Acting Knife-Blade

Designed for general purpose circuits with minimal motor load, the JLS090 from Littelfuse stands out with its current-limiting capabilities that significantly reduce potential damage to equipment caused by short-circuit currents. With an interruption rating of 200,000 A.I.R., it reliably handles all overcurrents up to this mark, alleviating the need for complex short-circuit calculations, making it a practical choice for various applications. This fast-acting fuse delivers quick protection for sensitive equipment, including variable speed drives and rectifiers, ensuring safe operation without compromising performance. Notably, its incredibly compact design allows manufacturers to standardize on 600-volt JLS fuses and Class J fuse blocks for diverse AC voltage ratings, simplifying inventory management while maintaining high levels of safety and efficiency in resistive loads, such as resistance electric heating.

• Fast-acting protection for sensitive equipment with solid-state devices
• Current-limiting design reduces damage from short-circuit currents
• 200,000 A interruption rating reliably handles high overcurrents
• Compact design allows standardized use across 600 V AC voltage ratings
• Suitable for general purpose circuits with minimal motor load
• Compatible with variable speed drives, rectifiers, and resistive loads
• Stops damaging short-circuit currents faster than mechanical devices
• Compliance with UL Listed, CSA Certified, CE Certified, and RoHS standards
• Similar characteristics to Class RK1 but much smaller size

• Voltage: 600 V ac
• Interrupting Rating: 200,000 A @ 600 V ac
• Ampere Rating: 90 A
• Fuse Type: Fast-Acting (F), Current-Limiting
• Length: 4 5/8 in
• Diameter: 1 1/8 in
• Standards: Standard 248-8, Class J; Federal Specification WF-1814
• Compliance: UL Listed, CSA Certified, CE Certified, RoHS Compliant

Certification

Datasheets

Environmental Info