Littelfuse JLLN800 Class T Fuse 800A 20000A@125VDC Fast-Acting Knife-Blade Bolt-In

The JLLN800 from Littelfuse represents a robust solution in the realm of electrical protection, designed specifically for high-performance environments where reliability is paramount. With a fast-acting mechanism and an impressive interrupting rating of up to 200,000 amperes, this device excels in shielding equipment such as variable speed drives and rectifiers from damaging short-circuit currents, ensuring that your systems operate smoothly and efficiently. Its innovative current limiting design not only mitigates heating and magnetic effects that can lead to equipment failure but also allows for the use of less costly, readily available equipment, enhancing both safety and cost-effectiveness in your installations. For those seeking versatile and compact protection, the JLLN series integrates seamlessly into molded case circuit breaker load centers and attendant panelboards, providing increased interrupting ratings when correctly paired with Littelfuse Class T fuses.

• UL Listed, CSA Certified, and RoHS Compliant for assured safety standards
• Fast-acting overload protection for surge-sensitive equipment
• High interrupting rating of 20,000 amperes at 125 VDC
• Extremely current limiting design reduces equipment heating and magnetic stress
• Allows use of cost-effective, readily available equipment
• Compact design fits molded case circuit breaker load centers and panelboards
• Compatible with variable speed drives, rectifiers, and sensitive electrical devices
• Melamine body with copper caps for electrical durability and reliability
• Designed for 300 V AC and 125 V DC operation
• Used to protect individual electric services and meters

• Voltage: 300 V AC, 125 V DC
• Amperage: 800 A
• Interrupting Rating: 20,000 A @ 125 VDC
• Fuse Type: Fast-Acting
• Material: Melamine body, bronze caps (1–30 A), copper caps (35–1200 A)
• Compliance: UL Listed, CSA Certified, RoHS Compliant
• Country of Origin: Mexico

RoHS Declaration

ICP Test Report

Certification

Datasheets