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LLNRK2.25

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LLNRK2.25

FUS 250V T/D CLASS RK1 2.25A | Series: LLNRK
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Littelfuse LLNRK and LLSRK series POWR-PRO™ fuses provide superior overload and short circuit protection for service entrance, main, feeder and general-purpose branch circuits up to 600 amperes.

LLNRK/LLSRK series fuses can be installed in existing Class H fuse blocks to upgrade systems containing lower interrupting rating Class H one-time or renewable fuses.

PropertyValue
Interrupting Rating
20 kA @ 125 Vdc
Opening
Slo-Blo/Time Lag (T)/Time Delay
Amp Fract
2 1/4
Family style
Powr-Pro Fuse
Fuse Class
Class RK1
Indicating
No
interrupt Amperage (A) - 1
200000
interrupt Amperage (A) - 2
300000
Interupt Amperage 3
20000
interrupt Voltage Type AC/DC) - 1
AC
interrupt Voltage Type AC/DC) - 2
AC
Interupt Voltage Type ACDC - 3
DC
interrupt Voltage (V) -1
250
interrupt Voltage (V) -2
250
Interupt Voltage - 3
125
Mounting Method
Fuse Block / Clip / Holder
PG Holder
LFR25030 Series
  • Extremely current-limiting, which reduces damage to circuits and equipment under short circuit conditions.
  • Stops damaging short circuits faster than mechanical protective devices.
  • Interrupting rating of 300 kA @ 125 V ac as self-certified by Littelfuse.
  • Meets trend toward need for handling higher short circuit currents.
  • Low resistance design reduces power consumption and utility bills.
  • Current-limiting design reduces costs by permitting use of readily available, less costly equipment.
  • Excellent time delay due to true dual-element construction with separate nonfatiguing, thermally reversible spring-loaded thermal overload element.
  • Withstands repeated surges within rated time delay without opening, which reduces downtime.

LLNRK2.25 Applications

Highlights Section

  • All general-purpose circuits
  • Motors
  • Transformers
  • Solenoids
  • Fluorescent lighting
  • All system components with high in-rush currents

LLNRK2.25 Resources

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Part NumberPart DescriptionRoHSPb-FreeRoHS (2015/863/EU) CertificateREACH (SVHC's) DeclarationREACH (SVHC's)Halogen FreeIPC-Material Declaration
LNRK2.25TFUS 250V T/D CLASS RK1 2.25A

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