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Series: PSR Flush End

PSR Flush End Series – High-Speed Semiconductor Fuse, Square Body
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The PSR Flush End series is a POWR-SPEED® high-speed, square body fuse specifically designed for the protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs, and other solid-state devices that are typically used in power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers, and soft-starters are examples of equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection.

Littelfuse POWR-SPEED® PSR series products offer optimized circuit protection at the extremely fast speed required to protect modern-day power conversion devices. These products are commonly found in pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants, and various large factories and MRO facilities.

  • Extremely current-limiting
  • Global certification cURus, CCC*, IEC
  • Low watt-loss design
  • POWR-SPEED® technology
  • Best-in-class dc performance
  • Superior cycling capability
  • Visual and optional microswitch fuse blown indication
  • Compliance with US and Canadian requirements
  • Fast-acting Class aR performance
  • Direct bus-bar mount design
  • Best in Class dc performance
  • Extremely current limiting
  • Superior cycling capability
  • Global certification cURus, CCC*
  • Direct bus-bar mount design
  • Visual and optional microswitch fuse blown indication
  • Low watt-loss design
  • Compliance with US and Canadian requirements
  • Fast-acting Class aR performance

PSR Flush End Parts

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PSR Flush End Applications

Highlights Section

  • Power conversion devices (UPS, inverter, rectifiers, drives)
  • Dc systems (dc common bus, dc injection braking)
  • Battery protection application (energy storage systems)
  • EV charging stations
  • Heaters and power supplies

Series: PSR Flush End Resources

Littelfuse POWR-SPEED High-Speed Fuses

PSR Flush End Related Products

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