Littelfuse L50S070 High-Speed Fuse 70A 500VAC 450VDC Very Fast-Acting

The L50S Series high-speed fuse by Littelfuse offers exceptional protection for sensitive electronic applications. With a 70 ampere rating, this fast-acting fuse is designed to swiftly interrupt overcurrents, ensuring reliable operation in UL listed equipment. Its extremely current-limiting characteristics, combined with low I2t and peak let-through currents, effectively meet the stringent requirements for semiconductors. Capable of handling up to 200 kAIC for AC applications and 20 kAIC for DC, this fuse is engineered to provide robust and dependable performance against both current overloads and system demands.

• UL recognized for safety assurance
• Extremely current limiting with low I2t and peak let-through currents
• Very fast-acting (FF) design for swift overcurrent interruption
• High interrupting rating of 200 kA AC and 20 kA DC
• Durable melamine body with silver-plated copper terminals
• Mounting via bolted tags compatible with 35-800 A range
• Wide operating temperature range from -55°C to +125°C
• Low watt losses of 17 W at full load and 10 W at 80% load for energy efficiency
• RoHS compliant for environmentally friendly construction

• Amperage: 70 A
• Voltage: 500 Vac, 450 Vdc
• Interrupting Rating: 20,000 A @ 450 Vdc, 200 kAIC AC
• Opening: Very Fast-Acting (FF)
• Fuse Torque: 15 N·m (132.76 in-lb)
• Hardware Size: M8 (5/16")
• Mounting Type: Bolted Tags (35 - 800 A)
• Material: Body Melamine, Terminals Copper (silver plated)
• Operating Temperature: -55°C to +125°C
• Compliance: UL Recognized, RoHS Compliant, CSA Recognized
• Country of Origin: Mexico
• Watts Loss at 100% Rated Current: 17 W
• Watts Loss at 80% Rated Current: 10 W
• Series: L50S
• Storage Temperature: Up to 35°C with <65% relative humidity

Datasheets

Certification

Environmental Info