High-Speed Square Body Fuses

Littelfuse
Part Number Information
Part #: Price/Availability:
L70S450.X Browse Inventory
L70S150.V Browse Inventory
L70QS350.X Browse Inventory
LA15QS4504 Browse Inventory

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other solid state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection.

Features

  • Best in Class DC performance
  • Extremely current limiting
  • Superior cycling capability
  • Global certification cURus, CCC, IEC
  • Direct bus-bar mount design
  • Visual and optional microswitch fuse blown indication
  • Low watt-loss design
  • Compliance with US and Canadian requirements
  • Class aR performance according to IEC60269-4

Applications

  • Power Conversion Devices (UPS, Inverter, Rectifiers, Drives)
  • DC Systems (DC Common Bus, DC Injection Braking)
  • Battery Protection Application (Energy Storage Systems)
  • Electric Vehicle Charging Stations
  • Heaters and Power Supplies