Littelfuse JLLN200 Class T Fuse Fast-Acting 200A 300VAC 125VDC Knife-Blade Bolt-In

The JLLN Series fuses from Littelfuse exemplify compact yet powerful circuit protection solutions, specifically designed for modern electrical systems. With a fast-acting design, these Class T fuses provide vital overload protection for sensitive equipment, such as variable speed drives and rectifiers, ensuring reliable operation and minimizing damage from potentially harmful short circuit currents. Their innovative construction requires less than 50% of the panel area compared to traditional Class R fuse blocks, allowing for more streamlined switch enclosures and panelboards. Capable of handling series ratings up to 200,000 amperes, the JLLN fuses not only enhance the interrupting capabilities of molded case circuit breakers but also promote the use of less costly equipment due to their superior current-limiting properties. This ensures that electrical systems maintain optimal performance while safeguarding against overcurrents effectively.

• Fast-acting overload protection for sensitive equipment
• Extremely current-limiting design reduces short circuit damage
• High interrupting rating up to 200 kA AC and 20 kA DC
• Supports series ratings up to 200,000 amperes
• Compact design uses less than 50% panel area of Class R fuse blocks
• Compatible with variable speed drives and rectifiers
• Bolt-in knife-blade design ensures secure installation
• Melamine body with bronze or copper caps for durability and insulation
• UL Listed and CSA Certified for safety compliance
• RoHS compliant for environmentally responsible manufacturing

• Voltage: 300 V AC, 125 V DC
• Amperage Range: 200 A (Initial), 1–1200 A (AI)
• Interrupting Rating: 20 kA DC @ 125 V, 200 kA AC rms symmetrical
• Fuse Type: Fast-Acting (F)
• Material: Melamine body, bronze or copper caps
• Approvals: UL Listed (File: E81895), CSA Certified (File: LR29862)
• Environmental: RoHS Compliant
• Country of Origin: Mexico
• Class: T

RoHS Declaration

ICP Test Report

Certification

Environmental Info

Datasheets