PSR Series - High-Speed Square Body Fuses

Littelfuse PSR High-Speed Fuse Series
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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse.

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.

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

Features/Benefits

  • 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

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningCase SizeStockSamplesCompare
PSR030FL004040200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL005050200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL006363200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL008080200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0100100200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0125125200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0160160200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0200200200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0250250200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0315315200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0350350200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0400400200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0450450200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0500500200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FL0550550200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS004040200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS005050200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS006363200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS008080200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0100100200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0125125200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0160160200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0200200200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0250250200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0315315200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0350350200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0400400200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0450450200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0500500200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR030FS0550550200kA@700VACVery Fast-Acting (FF)30CheckOrder
PSR031FL0200200200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0250250200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0315315200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0350350200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0400400200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0450450200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0500500200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0550550200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0630630200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0700700200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FL0800800200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0200200200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0250250200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0315315200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0350350200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0400400200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0450450200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0500500200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0550550200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0630630200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0700700200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR031FS0800800200kA@700VACVery Fast-Acting (FF)31CheckOrder
PSR032FL0400400200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0450450200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0500500200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0550550200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0630630200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0700700200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0800800200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL0900900200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL1000100200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FL11001100200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0400400200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0450450200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0500500200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0550550200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0630630200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0700700200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0800800200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS0900900200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS10001000200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR032FS11001100200kA@700VACVery Fast-Acting (FF)32CheckOrder
PSR033FL0450450200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0500500200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0550550200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0630630200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0700700200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0800800200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL0900900200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL10001000200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL11001100200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL12501250200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL14001400200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FL15001500200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FL16001600200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FL18001800200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FL20002000200kA@600VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0450450200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0500500200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0550550200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0630630200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0700700200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0800800200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS0900900200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS10001000200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS11001100200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS12501250200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS14001400200kA@700VACVery Fast-Acting (FF)33CheckOrder
PSR033FS15001500200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FS16001600200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FS18001800200kA@650VACVery Fast-Acting (FF)33CheckOrder
PSR033FS20002000200kA@600VACVery Fast-Acting (FF)33CheckOrder
PSR070FL0050050100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0063063100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0080080100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0100100100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0125125100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0160160100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0200200100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0250250100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0280280100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FL0315315100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0050050100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0063063100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0080080100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0100100100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0125125100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0160160100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0200200100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0250250100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0280280100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR070FS0315315100kA@1300VACVery Fast-Acting (FF)70CheckOrder
PSR071FL0160160100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0200200100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0250250100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0280280100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0315315100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0350350100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0400400100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FL0450450100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0160160100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0200200100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0250250100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0280280100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0315315100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0350350100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0400400100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR071FS0450450100kA@1300VACVery Fast-Acting (FF)71CheckOrder
PSR072FL0250250100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0280280100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0315315100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0350350100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0400400100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0450450100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0500500100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0550550100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FL0630630100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0250250100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0280280100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0315315100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0350350100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0400400100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0450450100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0500500100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0550550100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR072FS0630630100kA@1300VACVery Fast-Acting (FF)72CheckOrder
PSR073FL0315315100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0350350100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0400400100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0450450100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0500500100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0550550100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0630630100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FL0700700100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0315315100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0350350100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0400400100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0450450100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0500500100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0550550100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0630630100kA@1300VACVery Fast-Acting (FF)73CheckOrder
PSR073FS0700700100kA@1300VACVery Fast-Acting (FF)73CheckOrder
Catalog # Certificates
Sorting icon
PSR030FL0040 URcuruscccccc
PSR030FL0050 URcuruscccccc
PSR030FL0063 URcuruscccccc
PSR030FL0080 URcuruscccccc
PSR030FL0100 URcuruscccccc
PSR030FL0125 URcuruscccccc
PSR030FL0160 URcuruscccccc
PSR030FL0200 URcuruscccccc
PSR030FL0250 URcuruscccccc
PSR030FL0315 URcuruscccccc
PSR030FL0350 URcuruscccccc
PSR030FL0400 URcuruscccccc
PSR030FL0450 URcuruscccccc
PSR030FL0500 URcuruscccccc
PSR030FL0550 URcuruscccccc
PSR030FS0040 URcurus
PSR030FS0050 URcurus
PSR030FS0063 URcurus
PSR030FS0080 URcurus
PSR030FS0100 URcurus
PSR030FS0125 URcurus
PSR030FS0160 URcurus
PSR030FS0200 URcurus
PSR030FS0250 URcurus
PSR030FS0315 URcurus
PSR030FS0350 URcurus
PSR030FS0400 URcurus
PSR030FS0450 URcurus
PSR030FS0500 URcurus
PSR030FS0550 URcurus
PSR031FL0200 URcuruscccccc
PSR031FL0250 URcuruscccccc
PSR031FL0315 URcuruscccccc
PSR031FL0350 URcuruscccccc
PSR031FL0400 URcuruscccccc
PSR031FL0450 URcuruscccccc
PSR031FL0500 URcuruscccccc
PSR031FL0550 URcuruscccccc
PSR031FL0630 URcuruscccccc
PSR031FL0700 URcuruscccccc
PSR031FL0800 URcuruscccccc
PSR031FS0200 URcurus
PSR031FS0250 URcurus
PSR031FS0315 URcurus
PSR031FS0350 URcurus
PSR031FS0400 URcurus
PSR031FS0450 URcurus
PSR031FS0500 URcurus
PSR031FS0550 URcurus
PSR031FS0630 URcurus
PSR031FS0700 URcurus
PSR031FS0800 URcurus
PSR032FL0400 URcuruscccccc
PSR032FL0450 URcuruscccccc
PSR032FL0500 URcuruscccccc
PSR032FL0550 URcuruscccccc
PSR032FL0630 URcuruscccccc
PSR032FL0700 URcuruscccccc
PSR032FL0800 URcuruscccccc
PSR032FL0900 URcuruscccccc
PSR032FL1000 URcuruscccccc
PSR032FL1100 URcuruscccccc
PSR032FS0400 URcurus
PSR032FS0450 URcurus
PSR032FS0500 URcurus
PSR032FS0550 URcurus
PSR032FS0630 URcurus
PSR032FS0700 URcurus
PSR032FS0800 URcurus
PSR032FS0900 URcurus
PSR032FS1000 URcurus
PSR032FS1100 URcurus
PSR033FL0450 URcuruscccccc
PSR033FL0500 URcuruscccccc
PSR033FL0550 URcuruscccccc
PSR033FL0630 URcuruscccccc
PSR033FL0700 URcuruscccccc
PSR033FL0800 URcuruscccccc
PSR033FL0900 URcuruscccccc
PSR033FL1000 URcuruscccccc
PSR033FL1100 URcuruscccccc
PSR033FL1250 URcuruscccccc
PSR033FL1400 URcuruscccccc
PSR033FL1500 URcuruscccccc
PSR033FL1600 URcuruscccccc
PSR033FL1800 URcuruscccccc
PSR033FL2000 URcuruscccccc
PSR033FS0450 URcurus
PSR033FS0500 URcurus
PSR033FS0550 URcurus
PSR033FS0630 URcurus
PSR033FS0700 URcurus
PSR033FS0800 URcurus
PSR033FS0900 URcurus
PSR033FS1000 URcurus
PSR033FS1100 URcurus
PSR033FS1250 URcurus
PSR033FS1400 URcurus
PSR033FS1500 URcurus
PSR033FS1600 URcurus
PSR033FS1800 URcurus
PSR033FS2000 URcurus
PSR070FL0050 URcuruscccccc
PSR070FL0063 URcuruscccccc
PSR070FL0080 URcuruscccccc
PSR070FL0100 URcuruscccccc
PSR070FL0125 URcuruscccccc
PSR070FL0160 URcuruscccccc
PSR070FL0200 URcuruscccccc
PSR070FL0250 URcuruscccccc
PSR070FL0280 URcuruscccccc
PSR070FL0315 URcuruscccccc
PSR070FS0050 URcurus
PSR070FS0063 URcurus
PSR070FS0080 URcurus
PSR070FS0100 URcurus
PSR070FS0125 URcurus
PSR070FS0160 URcurus
PSR070FS0200 URcurus
PSR070FS0250 URcurus
PSR070FS0280 URcurus
PSR070FS0315 URcurus
PSR071FL0160 URcuruscccccc
PSR071FL0200 URcuruscccccc
PSR071FL0250 URcuruscccccc
PSR071FL0280 URcuruscccccc
PSR071FL0315 URcuruscccccc
PSR071FL0350 URcuruscccccc
PSR071FL0400 URcuruscccccc
PSR071FL0450 URcuruscccccc
PSR071FS0160 URcurus
PSR071FS0200 URcurus
PSR071FS0250 URcurus
PSR071FS0280 URcurus
PSR071FS0315 URcurus
PSR071FS0350 URcurus
PSR071FS0400 URcurus
PSR071FS0450 URcurus
PSR072FL0250 URcuruscccccc
PSR072FL0280 URcuruscccccc
PSR072FL0315 URcuruscccccc
PSR072FL0350 URcuruscccccc
PSR072FL0400 URcuruscccccc
PSR072FL0450 URcuruscccccc
PSR072FL0500 URcuruscccccc
PSR072FL0550 URcuruscccccc
PSR072FL0630 URcuruscccccc
PSR072FS0250 URcurus
PSR072FS0280 URcurus
PSR072FS0315 URcurus
PSR072FS0350 URcurus
PSR072FS0400 URcurus
PSR072FS0450 URcurus
PSR072FS0500 URcurus
PSR072FS0550 URcurus
PSR072FS0630 URcurus
PSR073FL0315 URcuruscccccc
PSR073FL0350 URcuruscccccc
PSR073FL0400 URcuruscccccc
PSR073FL0450 URcuruscccccc
PSR073FL0500 URcuruscccccc
PSR073FL0550 URcuruscccccc
PSR073FL0630 URcuruscccccc
PSR073FL0700 URcuruscccccc
PSR073FS0315 URcurus
PSR073FS0350 URcurus
PSR073FS0400 URcurus
PSR073FS0450 URcurus
PSR073FS0500 URcurus
PSR073FS0550 URcurus
PSR073FS0630 URcurus
PSR073FS0700 URcurus

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