Littelfuse L25S450 Semiconductor Fuse 450A 200VDC 250VAC Very Fast-Acting

The L25S Series from Littelfuse offers exceptional performance with its extremely current-limiting design, making it ideal for a wide range of semiconductor applications. With low I²t and peak let-through currents, these fuses are engineered to meet stringent requirements, ensuring reliable protection under demanding conditions. They possess a remarkable interrupting rating of 200,000 amperes, capable of managing overcurrents efficiently, thus addressing both current and future system needs. Additionally, these UL Recognized semiconductor fuses can be utilized for supplementary protection within UL listed equipment, further enhancing their versatility in various electrical systems.

• Extremely current-limiting design for semiconductor protection
• Low I²t and peak let-through currents minimize fault damage
• High 200,000 A interrupting rating for overcurrent management
• UL Recognized for safe use in UL listed equipment
• Very fast-acting fuse type ensures rapid fault response
• Wide operating temperature range from -55 °C to +125 °C
• Silver-plated copper alloy caps ensure reliable conductivity
• Melamine body provides electrical insulation and durability
• Direct bus-bar or stud mount design for secure installation
• RoHS compliant for environmentally friendly applications

• Amperage: 450 A
• Voltage: 250 V AC, 200 V DC
• Interrupting Rating: 20 kA DC, 200 kA AC
• Fuse Type: Very Fast-Acting (FF)
• Operating Temperature: -55 °C to +125 °C
• Material: Body: Melamine, Caps: Copper Alloy (Silver Plated)
• Time Constant: 10 ms
• Country of Origin: Mexico

Datasheets

RoHS Declaration

Certification

ICP Test Report