Littelfuse JLLS025 Class T Fuse 25A 600VAC 300VDC Fast-Acting Industrial Cartridge

The JLLS025 from Littelfuse offers a robust solution for circuits requiring rapid overload protection. This fast-acting fuse is designed specifically for use in applications involving surge-sensitive components like variable speed drives and rectifiers, where it can effectively prevent the costly failure of semiconductor fuses. With a current-limiting capability that enhances circuit protection, this fuse minimizes damage caused by the magnetic and thermal effects of short circuit currents, making it an ideal choice for compact protection in meter stacks. Furthermore, it boasts impressive interrupting ratings of up to 200,000 amperes, enabling it to reliably manage overcurrents and protect individual electric services and meters. The Class T design offers a space-efficient solution, taking up less than 50% of the panel area required for traditional Class R fuse blocks, facilitating the use of lighter and more cost-effective electrical equipment while maintaining high performance standards in demanding environments.

• Fast-acting overload protection for sensitive equipment
• Current-limiting design reduces short circuit damage
• High interrupting rating up to 200,000 amperes
• Compact Class T design occupies less than 50% panel space
• Protects surge-sensitive components like variable speed drives and rectifiers
• Suitable for individual electric services and meter protection
• Durable construction with melamine body and copper or bronze caps
• UL Standard 248-15 Class T compliance for safety and performance
• UL Listed and CSA Certified for certified quality assurance
• RoHS compliant for environmentally responsible manufacturing

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 25 A
• Interrupting Rating: 20,000 A @ 300 V DC, 200 kA AC rms symmetrical
• Opening: Fast-Acting (F)
• Material: Melamine body, copper or bronze caps
• Compliance: UL Standard 248-15, Class T
• Approvals: UL Listed, CSA Certified
• Environmental: RoHS Compliant
• Country of Origin: Mexico

Datasheets

Certification

ICP Test Report