LDFJ Series - UL Class J Fast-Acting Fuses

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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.

LDFJ series fuses provide space saving, high-speed performance and short-circuit protection for AC and DC drives.
LDFJ series offers current limiting features with lowest I2T for protection of power semiconductor devices and motor controllers.

Applications:
  • All AC/DC drives (Including variable frequency drives)
  • Power converters and solid-state devices
  • Resistive loads, such as resistance electric heat

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VAC (V)Interrupting RatingStockCompare
LDFJ0011600200 kA @ 600 VacCheck
LDFJ0022600200 kA @ 600 VacCheck
LDFJ0033600200 kA @ 600 VacCheck
LDFJ0044600200 kA @ 600 VacCheck
LDFJ0055600200 kA @ 600 VacCheck
LDFJ0066600200 kA @ 600 VacCheck
LDFJ0088600200 kA @ 600 VacCheck
LDFJ01010600200 kA @ 600 VacCheck
LDFJ01212600200 kA @ 600 VacCheck
LDFJ01515600200 kA @ 600 VacCheck
LDFJ02020600200 kA @ 600 VacCheck
LDFJ02525600200 kA @ 600 VacCheck
LDFJ03030600200 kA @ 600 VacCheck
LDFJ03535600200 kA @ 600 VacCheck
LDFJ04040600200 kA @ 600 VacCheck
LDFJ04545600200 kA @ 600 VacCheck
LDFJ05050600200 kA @ 600 VacCheck
LDFJ06060600200 kA @ 600 VacCheck
LDFJ07070600200 kA @ 600 VacCheck
LDFJ08080600200 kA @ 600 VacCheck
LDFJ09090600200 kA @ 600 VacCheck
LDFJ100100600200 kA @ 600 VacCheck
LDFJ110110600200 kA @ 600 VacCheck
LDFJ125125600200 kA @ 600 VacCheck
LDFJ150150600200 kA @ 600 VacCheck
LDFJ175175600200 kA @ 600 VacCheck
LDFJ200200600200 kA @ 600 VacCheck
LDFJ225225600200 kA @ 600 VacCheck
LDFJ250250600200 kA @ 600 VacCheck
LDFJ300300600200 kA @ 600 VacCheck
LDFJ400400600200 kA @ 600 VacCheck
LDFJ450450600200 kA @ 600 VacCheck
LDFJ500500600200 kA @ 600 VacCheck
LDFJ600600600200 kA @ 600 VacCheck

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