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FLSR Series - Class RK5
with Indication
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FLSR.100ID - Littelfuse FLSR.100ID - Littelfuse FLSR.100TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/10

FLSR.100ID - Littelfuse FLSR.100TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/10

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.150ID - Littelfuse FLSR.150ID - Littelfuse FLSR.150TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 15/100

FLSR.150ID - Littelfuse FLSR.150TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 15/100

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.200ID - Littelfuse FLSR.200ID - Littelfuse FLSR.200TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2/10

FLSR.200ID - Littelfuse FLSR.200TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2/10

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.250ID - Littelfuse FLSR.250ID - Littelfuse FLSR.250TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/4

FLSR.250ID - Littelfuse FLSR.250TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/4

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.300ID - Littelfuse FLSR.300ID - Littelfuse FLSR.300TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 3/10

FLSR.300ID - Littelfuse FLSR.300TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 3/10

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.400ID - Littelfuse FLSR.400ID - Littelfuse FLSR.400TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 4/10

FLSR.400ID - Littelfuse FLSR.400TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 4/10

Usually Ships in 3 to 5 Days
Price: $32.32
FLSR.500ID - Littelfuse FLSR.500ID - Littelfuse FLSR.500TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/2

FLSR.500ID - Littelfuse FLSR.500TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1/2

Usually Ships in 3 to 5 Days
Price: $30.27
FLSR.600ID - Littelfuse FLSR.600ID - Littelfuse FLSR.600TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 6/10

FLSR.600ID - Littelfuse FLSR.600TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 6/10

Usually Ships in 3 to 5 Days
Price: $30.27
FLSR.800ID - Littelfuse FLSR.800ID - Littelfuse FLSR.800TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 8/10

FLSR.800ID - Littelfuse FLSR.800TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 8/10

Usually Ships in 3 to 5 Days
Price: $30.27
FLSR001ID - Littelfuse FLSR001ID - Littelfuse FLSR001.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:1

FLSR001ID - Littelfuse FLSR001.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:1

Usually Ships in 3 to 5 Days
Price: $25.35
FLSR002ID - Littelfuse FLSR002ID - Littelfuse FLSR002.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:2

FLSR002ID - Littelfuse FLSR002.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:2

Usually Ships in 3 to 5 Days
Price: $24.09
FLSR003ID - Littelfuse FLSR003ID - Littelfuse FLSR003.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:3

FLSR003ID - Littelfuse FLSR003.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:3

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR004ID - Littelfuse FLSR004ID - Littelfuse FLSR004.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:4

FLSR004ID - Littelfuse FLSR004.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:4

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR005ID - Littelfuse FLSR005ID - Littelfuse FLSR005.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:5

FLSR005ID - Littelfuse FLSR005.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:5

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR006ID - Littelfuse FLSR006ID - Littelfuse FLSR006.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:6

FLSR006ID - Littelfuse FLSR006.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:6

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR007ID - Littelfuse FLSR007ID - Littelfuse FLSR007.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:7

FLSR007ID - Littelfuse FLSR007.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:7

Usually Ships in 3 to 5 Days
Price: $23.56
FLSR008ID - Littelfuse FLSR008ID - Littelfuse FLSR008.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:8

FLSR008ID - Littelfuse FLSR008.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:8

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR009ID - Littelfuse FLSR009ID - Littelfuse FLSR009.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:9

FLSR009ID - Littelfuse FLSR009.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:9

Usually Ships in 3 to 5 Days
Price: $23.56
FLSR01.4ID - Littelfuse FLSR01.4ID - Littelfuse FLSR01.4TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-4/10

FLSR01.4ID - Littelfuse FLSR01.4TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-4/10

Usually Ships in 3 to 5 Days
Price: $30.85
FLSR01.5ID - Littelfuse FLSR01.5ID - Littelfuse FLSR01.5TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-1/2

FLSR01.5ID - Littelfuse FLSR01.5TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-1/2

Usually Ships in 3 to 5 Days
Price: $28.71
FLSR01.6ID - Littelfuse FLSR01.6ID - Littelfuse FLSR01.6TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-6/10

FLSR01.6ID - Littelfuse FLSR01.6TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-6/10

Usually Ships in 3 to 5 Days
Price: $25.35
FLSR01.8ID - Littelfuse FLSR01.8ID - Littelfuse FLSR01.8TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-8/10

FLSR01.8ID - Littelfuse FLSR01.8TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 1-8/10

Usually Ships in 3 to 5 Days
Price: $28.71
FLSR010ID - Littelfuse FLSR010ID - Littelfuse FLSR010.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:10

FLSR010ID - Littelfuse FLSR010.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:10

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR012ID - Littelfuse FLSR012ID - Littelfuse FLSR012.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:12

FLSR012ID - Littelfuse FLSR012.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:12

Usually Ships in 3 to 5 Days
Price: $22.39
FLSR015ID - Littelfuse FLSR015ID - Littelfuse FLSR015.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:15

FLSR015ID - Littelfuse FLSR015.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:15

Usually Ships in 3 to 5 Days
Price: $19.73
FLSR02.5ID - Littelfuse FLSR02.5ID - Littelfuse FLSR02.5TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2-1/2

FLSR02.5ID - Littelfuse FLSR02.5TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2-1/2

Usually Ships in 3 to 5 Days
Price: $25.35
FLSR02.8ID - Littelfuse FLSR02.8ID - Littelfuse FLSR02.8TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2-8/10

FLSR02.8ID - Littelfuse FLSR02.8TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 2-8/10

Usually Ships in 3 to 5 Days
Price: $26.74
FLSR020ID - Littelfuse FLSR020ID - Littelfuse FLSR020.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:20

FLSR020ID - Littelfuse FLSR020.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:20

Usually Ships in 3 to 5 Days
Price: $19.73
FLSR025ID - Littelfuse FLSR025ID - Littelfuse FLSR025.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:25

FLSR025ID - Littelfuse FLSR025.TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size:25

Usually Ships in 3 to 5 Days
Price: $19.73
FLSR03.2ID - Littelfuse FLSR03.2ID - Littelfuse FLSR03.2TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 3-2/10

FLSR03.2ID - Littelfuse FLSR03.2TXID, UL CLASS RK5 DUAL-ELEMENT TIME-DELAY FUSE WITH INDICATION, Voltage: 600/300, Amp Size: 3-2/10

Usually Ships in 3 to 5 Days
Price: $23.56
   
 
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FLSR Series - Class RK5 with Indication

Littelfuse FLSR_ID Indicator™ fuses provide visual blown fuse indication at a glance. The patented state-of-the-art solid state design provides maximum reliability and superior performance characteristics in a true dual-element design. The use of Indicator fuses reduces down-time, nuisance opening, increases safety, and can save thousands of dollars in lost production time.

Applications:
  • Service entrance switches
  • Switchboard main and feeder switches
  • Motor control center mains and motor branch circuits
  • Individual fused combination motor controllers
  • Distribution panelboards
  • Industrial control panels
  • Protection of fully-rated panelboards and loadcenters
  • All general purpose circuits
Features/Benefits:
  • Reduce Down-Time — A glance at the indicating window of a FLSR_ID Indicator fuse pinpoints open fuses immediately. If the window is dark, the fuse has opened. It’s that simple. No fuse testing required. Machine operators can immediately determine that there is an open fuse and request maintenance personnel to bring the proper replacement.
  • Reduce Nuisance Opening — FLSR_ID Indicator fuses have superior time-delay and cycling characteristics which can lengthen fuse life and decrease needless opening.
  • Reduce Fuse Inventory — Because FLSR_ID Indicator fuses have superior performance characteristics they can be used on a variety of applications, thus decreasing fuse inventory.
  • Reduce Equipment Damage — FLSR_ID Indicator fuses have superior overload and short circuit protection which can reduce equipment damage.
  • Reduce Accidents — The FLSR_ID Indicator fuses improve safety by minimizing exposure to live circuits. Unlike other forms of blown fuse indication, Indicator fuses provide built-in blown fuse indication with the power on or off. No second guessing whether a light means a good or bad fuse and no current going across a blown fuse to power a lighted accessory.