KLDR Series - Littelfuse KLDR Fuses Provide Superior Transformer Protection

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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.

KLDR Series time-delay fuses are designed to protect control transformers, solenoids, and similar inductive components with high-magnetizing currents during the first half-cycle. These small-sized fuses provide excellent protection of motor branch circuits containing IEC or NEMA-rated motor controllers or contactors. The KLDR Series fuses closely match most control power transformer characteristics, which permits them to be sized in accordance with the latest revisions of UL 508 (Industrial Control) and UL 845 (Motor Control Centers).

Features and Benefits
  • Current-limiting
  • Short-circuit protection
  • Rejection capability
  • Time-delay

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningVAC (V)VDC (V)SizeStockSamplesCompare
KLDR.1000.1200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.1250.125200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.1500.15200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.1870.187200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.2000.2200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.2500.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.3000.3200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.4000.4200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.5000.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.6000.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.7500.75200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR.8000.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0011200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01.41.4200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01.51.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01.61.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01.81.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR1.121.12200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR1.251.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0022200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR02.52.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR02.82.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR2.252.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0033200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR03.23.2200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR03.53.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0044200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR04.54.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0055200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR05.65.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0066200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR6.256.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0077200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR07.57.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0088200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR0099200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01010200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01212200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR01515200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR17.517.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR02020200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR02525200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder
KLDR03030200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time Delay600300Class CCCheckOrder

  • Showing 3 items
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
KLDR.100HXP FUS 600V T/D CLASS CC .100A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.100TXP FUS 600V T/D CLASS CC .100A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.100TXP REACH209_Declaration_Contain-_KLDR.100TXP No
02/11/2013
Contains
KLDR.125HXP FUS 600V T/D CLASS CC .125A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.125TXP FUS 600V T/D CLASS CC .125A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.125TXP REACH191_Declaration_with_Pb_KLDR.125TXP No
02/11/2013
Contains
KLDR.150HXP FUS 600V T/D CLASS CC .150A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.150TXP FUS 600V T/D CLASS CC .150A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.187TXP FUS 600V T/D CLASS CC .187A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
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KLDR.187HXP FUS 600V T/D CLASS CC .187A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.200TXP FUS 600V T/D CLASS CC .200A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.200TXP REACH209_Declaration_Contain-_KLDR.200TXP No
02/11/2013
Contains
KLDR.200HXP FUS 600V T/D CLASS CC .200A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.250TXP FUS 600V T/D CLASS CC .250A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.250TXP REACH211_Declaration_Contain-_KLDR.250TXP No
02/11/2013
Contains
KLDR.250HXP FUS 600V T/D CLASS CC .250A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.250HXP REACH201_Declaration_with_Pb_KLDR.250HXP No
02/11/2013
Contains
KLDR.300TXP FUS 600V T/D CLASS CC .300A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.300TXP REACH209_Declaration_Contain-_KLDR.300TXP No
02/11/2013
Contains
KLDR.300HXP FUS 600V T/D CLASS CC .300A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.300HXP REACH191_Declaration_with_Pb_KLDR.300HXP No
02/11/2013
Contains
KLDR.400TXP FUS 600V T/D CLASS CC .400A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.400TXP REACH209_Declaration_Contain-_KLDR.400TXP No
02/11/2013
Contains
KLDR.400HXP FUS 600V T/D CLASS CC .400A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.400HXP REACH209_Declaration_Contain-_KLDR.400HXP No
02/11/2013
Contains
KLDR.500HXP FUS 600V T/D CLASS CC .500A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.500HXP REACH205_Declaration_with_Pb_KLDR.500HXP No
02/11/2013
Contains
KLDR.500TXP FUS 600V T/D CLASS CC .500A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.500TXP REACH219_Declaration_(Contain)_KLDR.500TXP No
02/11/2013
Contains
KLDR.600TXP FUS 600V T/D CLASS CC .600A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.600TXP REACH205_Declaration_Contain-_KLDR.600TXP No
02/11/2013
Contains
KLDR.600HXP FUS 600V T/D CLASS CC .600A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.750TXP FUS 600V T/D CLASS CC .750A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.750TXP REACH201_Declaration_with_Pb_KLDR.750TXP No
02/11/2013
Contains
KLDR.750HXP FUS 600V T/D CLASS CC .750A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.800TXP FUS 600V T/D CLASS CC .800A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 CoC_RoHS9_KLDR.800TXP REACH211_Declaration_(Contain)_KLDR.800TXP No
02/11/2013
Contains
KLDR.800HXP FUS 600V T/D CLASS CC .800A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR001.HXP FUS 600V T/D CLASS CC 1A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013