Littelfuse JLLS070 Class T Fast-Acting 70A 600VAC 20000A@300VDC Knife-Blade Bolt-In

The JLLS070 from Littelfuse is a robust solution designed to ensure exceptional protection for electrical systems, particularly in environments where quick response to overcurrents is critical. This fast-acting fuse operates efficiently at an ampere rating of 70 and features an opening mechanism that maximizes safety by swiftly interrupting currents up to 200,000 amperes. With its current-limiting design, it significantly minimizes the risk of damage to sensitive equipment, making it ideal for applications involving variable speed drives and rectifiers. Notably compact, this fuse is designed to occupy less space than traditional Class R blocks, enabling streamlined installation in meter stacks and panelboards. Its advanced specifications, including a 600 VAC and a 300 VDC rating, enhance its versatility, allowing it to cater to a wide range of electrical demands while ensuring that operational integrity is maintained.

• Fast-acting overload protection for surge-sensitive equipment
• Extremely current limiting design to minimize damage from short circuits
• High interrupting rating of 200,000 amperes for superior fault clearing
• Compact size occupying less than one-third the space of Class R fuses
• Versatile voltage ratings of 600 V AC and 300 V DC
• Durable melamine body with copper or bronze caps for reliable performance
• Knife-blade bolt-in connection for secure and easy installation
• UL Listed Class T and CSA Certified for safety compliance
• RoHS Compliant for environmental safety and sustainability
• Ideal for protection of variable speed drives, rectifiers, and power conversion devices

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 70 A
• Interrupting Rating: 20,000 A @ 300 V DC, 200 kA rms symmetrical AC
• Fuse Type: Fast-Acting (F)
• Current Limiting: Extremely current limiting design
• Material: Melamine body, copper or bronze caps
• Compliance: UL Listed Class T, CSA Certified (1–600 A), RoHS Compliant
• Country of Origin: Mexico
• Size: Less than one-third size of Class R fuses
• Connection Type: Knife-Blade/Bolt-In

Certification

Datasheets

ICP Test Report