L75QS Series - High-Speed Round Body Fuse

Brand: Littelfuse, Inc

The L75QS series is a next generation high-speed fuse for the protection of power semiconductor devices and is designed in the traditional round body bolted style package.

L75QS series high-speed fuses rated at 750 V dc are extremely current limiting and are used to protect power converters, drives and control circuit applications. Designed with lower I2t performance characteristics, these fuses provide balanced performance to extend longevity while lowering potentially damaging heat energy to the devices being protected.

In addition L75QS series fuses have been designed with a universal mounting option to meet customer requirements for installation into a variety of application configurations.

Littelfuse POWR-SPEED products offer optimized circuit protection at the extremely fast speed required to protect modern day, sensitive, high-power semiconductor devices.
Features
  • Compliance with US and Canadian Requirements
  • Traditional North American Bolted Style dimensions
  • 750 Vdc performance
  • Direct bus-bar mount or stud mount design
  • Halogen Free, RoHS and REACH Compliant

Specifications

Certifications & Approvals

  • HF
  • cURus
  • CE
  • RoHS

Voltage Rating

  • DC: 750 V

Ampere Range

  • 35-800 A

Interrupting Rating

  • DC: 50 kA

Time Constant

  • 10 milliseconds

Body Material

  • Melamine

Cap Material

  • Copper Alloy

Operating Temperature

  • -55° to 125° C

Storage Temperature

  • Up to 35° C with Relative Humidity < 65 %

  • Power Converters (Inverters, Rectifiers)
  • Power Supplies, UPS
  • EV Charging Stations
  • Variable Speed Drives
  • Dc Common Bus
show more