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Littelfuse - KLNR070 - - Littelfuse .V, UL CLASS RK1 FAST-ACTING FUSE, Voltage: 250/125, Amp Size:70

  • MFR SKU: KLNR070
  • ITEM #: 12031326
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ITEM #: 12031326
KLNR070 - Littelfuse KLNR RK 1 F A
The KLNR Series Family
KLNR/KLSR series RK1 fast-acting fuses were the earliest type of current-limiting fuse developed. Their single-element, silver link design enables them to provide fast-acting overload and short-circuit protection. When used to protect inductive loads such as motors, solenoids, and transformers, KLNR/KLSR series fuses must be greatly oversized to prevent opening the fuses on harmless inrush currents. In such applications, KLNR/KLSR...
ITEM #: 12031326
KLNR070 - Littelfuse KLNR RK 1 F A
The KLNR Series Family
KLNR/KLSR series RK1 fast-acting fuses were the earliest type of current-limiting fuse developed. Their single-element, silver link design enables them to provide fast-acting overload and short-circuit protection. When used to protect inductive loads such as motors, solenoids, and transformers, KLNR/KLSR series fuses must be greatly oversized to prevent opening the fuses on harmless inrush currents. In such applications, KLNR/KLSR series fuses may only provide short-circuit protection.
We recommend using POWR-PRO™ LLNRK/LLSRK series RK1, dual-element, time-delay fuses in all new applications requiring the current-limiting ability of UL Class RK1 fast-acting fuses, or in existing applications where fast-acting RK1 or RK5 fuses have been opening on harmless system surges such as motor starting currents.
Applications:
  • Resistance heaters
  • Lighting circuits
  • Non-inductive loads
  • Molded case circuit breaker load centers and panelboards have increased interrupting ratings when "series rated" with Littelfuse KLNR/KLSR Class RK1 fast-acting fuses. Refer to panelboard manufacturer's literature for UL Listed combination of fuses and panelboards. Series ratings up to 200, 000 amperes are available.
Safety:
  • 200, 000 A.I.R. - Reliable interruption of all overcurrents up to 200, 000 amperes.
  • Extremely current limiting - Stops damaging short-circuit current faster than any mechanical protective device.
  • Fast-acting - Provides fast-acting protection to equipment such as variable speed drives, rectifiers and other equipment containing surge-sensitive components.
  • Longer Equipment Life:
  • Current-limiting design reduces damage to equipment caused by heating and magnetic effects of short-circuit currents.
Economical:
  • Extremely current-limiting - often permits use of readily available, less costly equipment.
  • Used as input or output fast-acting fuses for surge-sensitive components, such as variable speed drives and rectifiers, fast acting KLNR/KLSR fuses may prevent opening of expensive semiconductor fuses protecting individual components.
Easy to Use:
  • 200, 000 A.I.R. rating minimizes need for short circuit calculations.
  • Dimensions:
  • Refer to FLNR for KLNR dimensions and FLSR for KLSR dimensions.
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Littelfuse - KLNR070 - - Littelfuse .V, UL CLASS RK1 FAST-ACTING FUSE, Voltage: 250/125, Amp Size:70

  • Item #: 12031326
  • MFR SKU: KLNR070
Technical Specs
  • CLASS RK1 TYPE; 5-7/8 INCH; UL 248-12, CSA, CE APPROVAL; 250 VAC/125 VDC VOLTAGE RATING; 1-1/16 INCH DIAMETER; 200000 AMPERE (SYMMETRICAL), 20000 AMPERE (DC) INTERRUPTING RATING; 70 AMPERE CURRENT RATING; BLADE TERMINAL TYPE; FAST ACTING CHARACTERISTICS; POWR-GARD [R] BRAND; APPLICATION RESISTANCE HEATERS, LIGHTING CIRCUITS, NON-INDUCTIVE LOADS, MOLDED CASE CIRCUIT BREAKER LOAD CENTERS AND PANELBOARDS; KLNR MODEL
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