KLC Series – High-Speed Semiconductor Fuse Series - Littelfuse KLC High-Speed Fuses Provide Superior Protection

Series: KLC Series – High-Speed Semiconductor Fuse
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KLC
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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" includes Littelfuse, Inc., and all of its affiliate entities.

The KLC series is a traditional North American-style, high-speed fuse designed with POWR-SPEED® technology for protection of power semiconductor devices that are rated up to 600 V ac. This is a round body, extremely current-limiting fuse for use where no time delay is required. It is typically used for replacement purposes only. For new designs, the L70QS series is recommended.

POWR-SPEED® brand fuses are optimized for performance and efficiency to help extend equipment life. They offer Littelfuse-developed technology that sets tomorrow’s standards for accuracy, consistent quality, reliability, and predictable performance. Littelfuse engineers have redefined high-speed fuse technology by using advanced metallurgical, polymer, and materials research, mathematical modeling, and computerized statistical analysis.

The KLC series is specifically designed for supplementary protection of semiconducting devices such as silicon controlled rectifiers (SCRs), diodes, thyristors, triacs, transistors, and similar solid-state devices. These devices are used in power equipment including variable speed drives, power rectifiers, UPS systems, dc power supplies, and in a wide range of electronic equipment.

Features

  • Extremely current-limiting
  • Low energy let-through (I2t)
  • Low watt losses
  • Controlled transient overvoltages
  • Compliance with US and Canadian requirements
  • Traditional North American cylindrical and bolted-style dimensions
  • Class aR performance
  • POWR-SPEED® technology
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Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningVAC (V)StockSamplesCompare
KLC0011200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0022200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0033200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0044200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0055200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0066200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0077200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC0088200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC01010200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC01212200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC01515200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC02020200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC02525200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC03030200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC03535200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC04040200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC04545200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC05050200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC06060200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC07070200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC08080200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC09090200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC100100200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC110110200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC125125200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC150150200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC17.517.5200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC175175200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC200200200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC225225200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC250250200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC300300200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC350350200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC400400200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC450450200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC500500200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC600600200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC700700200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
KLC800800200 kA @ 600 VacVery Fast-Acting (FF)600CheckOrder
Catalog # Certificates
Sorting icon
KLC001 URiconCURicon
KLC002 URiconCURicon
KLC003 URiconCURicon
KLC004 URiconCURicon
KLC005 URiconCURicon
KLC006 URiconCURicon
KLC007 URiconCURicon
KLC008 URiconCURicon
KLC010 URiconCURicon
KLC012 URiconCURicon
KLC015 URiconCURicon
KLC020 URiconCURicon
KLC025 URiconCURicon
KLC030 URiconCURicon
KLC035 URiconCURicon
KLC040 URiconCURicon
KLC045 URiconCURicon
KLC050 URiconCURicon
KLC060 URiconCURicon
KLC070 URiconCURicon
KLC080 URiconCURicon
KLC090 URiconCURicon
KLC100 URiconCURicon
KLC110 URiconCURicon
KLC125 URiconCURicon
KLC150 URiconCURicon
KLC17.5 URiconCURicon
KLC175 URiconCURicon
KLC200 URiconCURicon
KLC225 URiconCURicon
KLC250 URiconCURicon
KLC300 URiconCURicon
KLC350 URiconCURicon
KLC400 URiconCURicon
KLC450 URiconCURicon
KLC500 URiconCURicon
KLC600 URiconCURicon
KLC700 URiconCURicon
KLC800 URiconCURicon
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0KLC001.T FUS 600V SEMICONDUCTOR 1A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC002.T FUS 600V SEMICONDUCTOR 2A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC003.T FUS 600V SEMICONDUCTOR 3A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC004.T FUS 600V SEMICONDUCTOR 4A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC005.T FUS 600V SEMICONDUCTOR 5A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC006.T FUS 600V SEMICONDUCTOR 6A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC007.T FUS 600V SEMICONDUCTOR 7A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC008.T FUS 600V SEMICONDUCTOR 8A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC010.T FUS 600V SEMICONDUCTOR 10A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC012.T FUS 600V SEMICONDUCTOR 12A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC015.T FUS 600V SEMICONDUCTOR 15A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC020.T FUS 600V SEMICONDUCTOR 20A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC025.T FUS 600V SEMICONDUCTOR 25A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC030.T FUS 600V SEMICONDUCTOR 30A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC035.T FUS 600V SEMICONDUCTOR 35A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC040.T FUS 600V SEMICONDUCTOR 40A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC045.T FUS 600V SEMICONDUCTOR 45A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC050.T FUS 600V SEMICONDUCTOR 50A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC060.T FUS 600V SEMICONDUCTOR 60A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC070.V FUS 600V SEMICONDUCTOR 70A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC080.V FUS 600V SEMICONDUCTOR 80A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC090.V FUS 600V SEMICONDUCTOR 90A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC100.V FUS 600V SEMICONDUCTOR 100A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC110.X FUS 600V SEMICONDUCTOR 110A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC125.X FUS 600V SEMICONDUCTOR 125A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC150.X FUS 600V SEMICONDUCTOR 150A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC17.5T FUS 600V SEMICONDUCTOR 17.5A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC175.X FUS 600V SEMICONDUCTOR 175A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC200.X FUS 600V SEMICONDUCTOR 200A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC225.X FUS 600V SEMICONDUCTOR 225A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC250.X FUS 600V SEMICONDUCTOR 250A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC300.X FUS 600V SEMICONDUCTOR 300A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC350.X FUS 600V SEMICONDUCTOR 350A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC400.X FUS 600V SEMICONDUCTOR 400A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC450.X FUS 600V SEMICONDUCTOR 450A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC500.X FUS 600V SEMICONDUCTOR 500A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC600.X FUS 600V SEMICONDUCTOR 600A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC700.X FUS 600V SEMICONDUCTOR 700A RoHS No 12/28/2006 PbFree No 12/28/2006
0KLC800.X FUS 600V SEMICONDUCTOR 800A RoHS No 12/28/2006 PbFree No 12/28/2006
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