KLDR Series - Class CC Time-Delay Fuses

Series: KLDR
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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 fuses are time-delay fuses specifically designed for the protection of control transformers, solenoids and similar inductive components with high magnetizing currents during the first half-cycle.
  • They closely match most control power transformer characteristics, which permits the time delay fuses to be sized in accordance with the latest revisions of UL 508 (Industrial Control) and UL 845 (Motor Control Centers).
  • When the time delay of KLDR fuses is adequate to carry motor starting current, they provide excellent protection of motor branch circuits containing IEC or NEMA rated motor controllers or contractors.
  • Compared to other UL Listed fuses, Class CC time delay fuses are the most current limiting, rating for rating.
  • Time delay fuses provide this superior protection in a fraction of the space required by other fuse classes. — For example, when 600 V three-pole, 30 A Class R fuse blocks are replaced by Littelfuse Class CC fuse blocks, panel-mounting space is reduced approximately 70%.

Applications:

Small transformer protection (control power transformers) – KLDR series, time delay fuses designed to withstand the high magnetizing inrush of transformers.

Safety:

  • 200,000 A.I.R. — Reliable interruption of all overcurrents up to 200,000 amperes.
  • Extremely current limiting — Reduces damage caused by heating and magnetic effects of short-circuit currents…stops damaging short-circuit faster than any mechanical protective device.

Space Saving:

  • Class CC time delay fuses are the smallest 600V, 200,000 A.I.R. fuses approved for branch circuit protection.

Product Literature

Littelfuse POWR-Gard Catalog

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)Interrupting RatingOpeningSizeStockSamplesCompare
KLDR.1000.1200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.1250.125200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.1500.15200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.1870.187200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.2000.2200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.2500.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.3000.3200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.4000.4200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.5000.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.6000.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.7500.75200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR.8000.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0011200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01.41.4200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01.51.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01.61.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01.81.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR1.121.12200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR1.251.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0022200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR02.52.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR02.82.8200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR2.252.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0033200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR03.23.2200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR03.53.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0044200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR04.54.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0055200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR05.65.6200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0066200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR6.256.25200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0077200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR07.57.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0088200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR0099200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01010200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01212200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR01515200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR17.517.5200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR02020200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR02525200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass CCCheckOrder
KLDR03030200 kA @ 600 VacSlo-Blo/Time Lag (T)/Time DelayClass 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 No
02/11/2013
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 Yes
02/11/2013
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
02/11/2013
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 No
02/11/2013
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 No
02/11/2013
KLDR.250HXP FUS 600V T/D CLASS CC .250A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.300TXP FUS 600V T/D CLASS CC .300A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.300HXP FUS 600V T/D CLASS CC .300A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.400TXP FUS 600V T/D CLASS CC .400A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.400HXP FUS 600V T/D CLASS CC .400A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.500HXP FUS 600V T/D CLASS CC .500A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.500TXP FUS 600V T/D CLASS CC .500A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR.600TXP FUS 600V T/D CLASS CC .600A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
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 No
02/11/2013
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 No
02/11/2013
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
KLDR001.TXP FUS 600V T/D CLASS CC 1A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.4HXP FUS 600V T/D CLASS CC 1.4A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.4TXP FUS 600V T/D CLASS CC 1.4A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.5TXP FUS 600V T/D CLASS CC 1.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.5HXP FUS 600V T/D CLASS CC 1.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.6HXP FUS 600V T/D CLASS CC 1.6A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.6TXP FUS 600V T/D CLASS CC 1.6A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.8TXP FUS 600V T/D CLASS CC 1.8A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR01.8HXP FUS 600V T/D CLASS CC 1.8A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR1.12HXP FUS 600V T/D CLASS CC 1.12A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR1.12TXP FUS 600V T/D CLASS CC 1.12A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR1.25HXP FUS 600V T/D CLASS CC 1.25A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR1.25TXP FUS 600V T/D CLASS CC 1.25A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR002.TXP FUS 600V T/D CLASS CC 2A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR002.HXP FUS 600V T/D CLASS CC 2A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR02.5HXP FUS 600V T/D CLASS CC 2.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR02.5TXP FUS 600V T/D CLASS CC 2.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR02.8HXP FUS 600V T/D CLASS CC 2.8A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR02.8TXP FUS 600V T/D CLASS CC 2.8A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR2.25HXP FUS 600V T/D CLASS CC 2.25A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR2.25TXP FUS 600V T/D CLASS CC 2.25A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR003.TXP FUS 600V T/D CLASS CC 3A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR003.HXP FUS 600V T/D CLASS CC 3A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR03.2TXP FUS 600V T/D CLASS CC 3.2A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR03.2HXP FUS 600V T/D CLASS CC 3.2A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR03.5TXP FUS 600V T/D CLASS CC 3.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR03.5HXP FUS 600V T/D CLASS CC 3.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR004.HXP FUS 600V T/D CLASS CC 4A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR004.TXP FUS 600V T/D CLASS CC 4A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR04.5HXP FUS 600V T/D CLASS CC 4.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR04.5TXP FUS 600V T/D CLASS CC 4.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR005.HXP FUS 600V T/D CLASS CC 5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR005.TXP FUS 600V T/D CLASS CC 5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR05.6HXP FUS 600V T/D CLASS CC 5.6A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR05.6TXP FUS 600V T/D CLASS CC 5.6A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR006.HXP FUS 600V T/D CLASS CC 6A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR006.TXP FUS 600V T/D CLASS CC 6A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR6.25TXP FUS 600V T/D CLASS CC 6.25A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR6.25HXP FUS 600V T/D CLASS CC 6.25A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR007.TXP FUS 600V T/D CLASS CC 7A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR007.HXP FUS 600V T/D CLASS CC 7A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR07.5HXP FUS 600V T/D CLASS CC 7.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR07.5TXP FUS 600V T/D CLASS CC 7.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR008.HXP FUS 600V T/D CLASS CC 8A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR008.TXP FUS 600V T/D CLASS CC 8A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR009.TXP FUS 600V T/D CLASS CC 9A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR009.HXP FUS 600V T/D CLASS CC 9A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR010.TXP FUS 600V T/D CLASS CC 10A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR010.HXP FUS 600V T/D CLASS CC 10A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR012.HXP FUS 600V T/D CLASS CC 12A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR012.TXP FUS 600V T/D CLASS CC 12A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR015.TXP FUS 600V T/D CLASS CC 15A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR015.HXP FUS 600V T/D CLASS CC 15A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR17.5TXP FUS 600V T/D CLASS CC 17.5A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR17.5HXP FUS 600V T/D CLASS CC 17.5A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR020.TXP FUS 600V T/D CLASS CC 20A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR020.HXP FUS 600V T/D CLASS CC 20A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR025.HXP FUS 600V T/D CLASS CC 25A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR025.TXP FUS 600V T/D CLASS CC 25A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR030.TXP FUS 600V T/D CLASS CC 30A RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
KLDR030.HXP FUS 600V T/D CLASS CC 30A 100PK RoHS RoHS No 03/15/2006 PbFree No 02/11/2013 No
02/11/2013
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