Class RK1

Class RK1 are non-renewable fuses that conform to UL 198E. Current ratings range from 0A to 600A, with voltage ratings of 250VAC and 600VAC (DC ratings are also available). They have an interrupting rating of 200kA rms symmetrical (300kV symmetrical also available) and are closely related to the RK1 fuse.

Class RK1 fuses are actually Class K-1 fuses with ferrules and knife blades modified to conform to Class R rejection requirements. The grooved ring in the ferrule and the slot in the knife blade, when used in conjunction with special fuseholders designed to accept Class R fuses only, prevent interchanging of any other fuse class with the installed Class R fuse.

The fuses must be labeled "Current Limiting" and can be labeled "Time Delay", indicating that they meet the optional time-delay test by not opening in less than 10 seconds at 500% of fuse ampere rating.

Features:

  • High current limitation for low peak let-thru current
  • Rejection feature prevents replacement errors
  • Fast Acting
  • Low I2T
  • Solution for high-fault circuits

Applications:

  • Branch and feeder circuits
  • AC Drives
  • Load centers
  • Panel boards and Switchboards
  • Non-inductive loads
  • General purpose applications including lighting and heating

Brands:

  • Bussmann
  • Edison
  • Ferraz Shawmut
  • Littelfuse

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   · Fuses in this class:
#KTN-R-1
#KTN-R-2
#KTN-R-3
#KTN-R-4
#KTN-R-5
#KTN-R-6
#KTN-R-8
#KTN-R-10
#KTN-R-12
#KTN-R-15
#KTN-R-20
#KTN-R-25
#KTN-R-30
#KTN-R-35
#KTN-R-40
#KTN-R-45
#KTN-R-50
#KTN-R-60
#KTN-R-70
#KTN-R-75
#KTN-R-80
#KTN-R-90
#KTN-R-100
#KTN-R-110
#KTN-R-125
#KTN-R-150
#KTN-R-175
#KTN-R-200
#KTN-R-225
#KTN-R-250
#KTN-R-300
#KTN-R-350
#KTN-R-400
#KTN-R-450
#KTN-R-500
#KTN-R-600
#KTS-R-1
#KTS-R-2
#KTS-R-3
#KTS-R-4
#KTS-R-5
#KTS-R-6
#KTS-R-8
#KTS-R-10
#KTS-R-12
#KTS-R-15
#KTS-R-20
#KTS-R-25
#KTS-R-30
#KTS-R-35
#KTS-R-40
#KTS-R-45
#KTS-R-50
#KTS-R-60
#KTS-R-70
#KTS-R-75
#KTS-R-80
#KTS-R-90
#KTS-R-100
#KTS-R-110
#KTS-R-125
#KTS-R-150
#KTS-R-175
#KTS-R-200
#KTS-R-225
#KTS-R-250
#KTS-R-300
#KTS-R-350
#KTS-R-400
#KTS-R-450
#KTS-R-500
#KTS-R-600
#LPN-RK-1/10SP
#LPN-RK-15/100SP
#LPN-RK-2/10SP
#LPN-RK-3/10SP
#LPN-RK-4/10SP
#LPN-RK-1/2SP
#LPN-RK-6/10SP
#LPN-RK-8/10SP
#LPN-RK-1SP
#LPN-RK-1 1/18SP
#LPN-RK-1 1/4SP
#LPN-RK-1 4/10SP
#LPN-RK-1 6/10SP
#LPN-RK-1 8/70SP
#LPN-RK-2SP
#LPN-RK-2 1/4SP
#LPN-RK-2 1/2SP
#LPN-RK-2 8/10SP
#LPN-RK-3SP
#LPN-RK-3 2/10SP
#LPN-RK-3 1/2SP
#LPN-RK-4SP
#LPN-RK-4 1/2SP
#LPN-RK-5SP
#LPN-RK-5 6/10SP
#LPN-RK-6SP
#LPN-RK-6 1/4SP
#LPN-RK-8SP
#LPN-RK-9SP
#LPN-RK-10SP
#LPN-RK-12SP
#LPN-RK-15SP
#LPN-RK-17 1/2SP
#LPN-RK-20SP
#LPN-RK-25SP
#LPN-RK-30SP
#LPN-RK-35SP
#LPN-RK-40SP
#LPN-RK-45SP
#LPN-RK-50SP
#LPN-RK-60SP
#LPS-RK-70SPI
#LPS-RK-80SPI
#LPS-RK-90SPI
#LPS-RK-100SPI
#LPS-RK-110SPI
#LPS-RK-125SPI
#LPS-RK-150SPI
#LPS-RK-175SPI
#LPS-RK-200SPI
#LPS-RK-225SPI
#LPS-RK-250SPI
#LPS-RK-300SPI
#LPS-RK-350SPI
#LPS-RK-400SPI
#LPS-RK-450SPI
#LPS-RK-500SPI
#LPS-RK-600SPI
#KLNR 1
#KLNR 2
#KLNR 3
#KLNR 4
#KLNR 5
#KLNR 6
#KLNR 8
#KLNR 10
#KLNR 12
#KLNR 15
#KLNR 20
#KLNR 25
#KLNR 30
#KLNR 35
#KLNR 40
#KLNR 45
#KLNR 50
#KLNR 60
#KLNR 70
#KLNR 80
#KLNR 90
#KLNR 100
#KLNR 110
#KLNR 125
#KLNR 150
#KLNR 175
#KLNR 200
#KLNR 225
#KLNR 250
#KLNR 300
#KLNR 350
#KLNR 400
#KLNR 450
#KLNR 500
#KLNR 600
#KLSR 1
#KLSR 2
#KLSR 3
#KLSR 4
#KLSR 5
#KLSR 6
#KLSR 8
#KLSR 10
#KLSR 12
#KLSR 15
#KLSR 20
#KLSR 25
#KLSR 30
#KLSR 35
#KLSR 40
#KLSR 45
#KLSR 50
#KLSR 60
#KLSR 70
#KLSR 80
#KLSR 90
#KLSR 100
#KLSR 110
#KLSR 125
#KLSR 150
#KLSR 175
#KLSR 200
#KLSR 225
#KLSR 250
#KLSR 300
#KLSR 350
#KLSR 400
#KLSR 450
#KLSR 500
#KLSR 600
#LLNRK 1/10
#LLNRK 15/100
#LLNRK 2/10
#LLNRK 1/4
#LLNRK 3/10
#LLNRK 4/10
#LLNRK 1/2
#LLNRK 6/10
#LLNRK 8/10
#LLNRK 1
#LLNRK 1 1/8
#LLNRK 1 1/4
#LLNRK 1 4/10
#LLNRK 1 6/10
#LLNRK 1 8/10
#LLNRK 2
#LLNRK 2 1/4
#LLNRK 2 1/2
#LLNRK 2 8/10
#LLNRK 3
#LLNRK 3 2/10
#LLNRK 3 1/2
#LLNRK 4
#LLNRK 4 1/2
#LLNRK 5
#LLNRK 5 6/10
#LLNRK 6
#LLNRK 6 1/4
#LLNRK 7
#LLNRK 8
#LLNRK 9
#LLNRK 10
#LLNRK 12
#LLNRK 15
#LLNRK 17 1/2
#LLNRK 20
#LLNRK 25
#LLNRK 30
#LLNRK 35
#LLNRK 40
#LLNRK 45
#LLNRK 50
#LLNRK 60
#LLNRK 70
#LLNRK 75
#LLNRK 80
#LLNRK 90
#LLNRK 100
#LLNRK 110
#LLNRK 125
#LLNRK 150
#LLNRK 175
#LLNRK 200
#LLNRK 225
#LLNRK 250
#LLNRK 300
#LLNRK 350
#LLNRK 400
#LLNRK 450
#LLNRK 500
#LLNRK 600
#LLSRK 1/10
#LLSRK 15/100
#LLSRK 2/10
#LLSRK 1/4
#LLSRK 3/10
#LLSRK 4/10
#LLSRK 1/2
#LLSRK 6/10
#LLSRK 8/10
#LLSRK 1
#LLSRK 1 1/8
#LLSRK 1 1/4
#LLSRK 1 4/10
#LLSRK 1 6/10
#LLSRK 1 8/10
#LLSRK 2
#LLSRK 2 1/4
#LLSRK 2 1/2
#LLSRK 2 8/10
#LLSRK 3
#LLSRK 3 2/10
#LLSRK 3 1/2
#LLSRK 4
#LLSRK 4 1/2
#LLSRK 5
#LLSRK 5 6/10
#LLSRK 6
#LLSRK 6 1/4
#LLSRK 7
#LLSRK 8
#LLSRK 9
#LLSRK 10
#LLSRK 12
#LLSRK 15
#LLSRK 17 1/2
#LLSRK 20
#LLSRK 25
#LLSRK 30
#LLSRK 35
#LLSRK 40
#LLSRK 45
#LLSRK 50
#LLSRK 60
#LLSRK 70
#LLSRK 75
#LLSRK 80
#LLSRK 90
#LLSRK 100
#LLSRK 110
#LLSRK 125
#LLSRK 150
#LLSRK 175
#LLSRK 200
#LLSRK 225
#LLSRK 250
#LLSRK 300
#LLSRK 350
#LLSRK 400
#LLSRK 450
#LLSRK 500
#LLSRK 600
#NCLR 1
#NCLR 2
#NCLR 3
#NCLR 4
#NCLR 5
#NCLR 6
#NCLR 8
#NCLR 10
#NCLR 12
#NCLR 15
#NCLR 20
#NCLR 25
#NCLR 30
#NCLR 35
#NCLR 40
#NCLR 45
#NCLR 50
#NCLR 60
#NCLR 70
#NCLR 80
#NCLR 90
#NCLR 100
#NCLR 110
#NCLR 125
#NCLR 150
#NCLR 175
#NCLR 200
#NCLR 225
#NCLR 250
#NCLR 300
#NCLR 350
#NCLR 400
#NCLR 450
#NCLR 500
#NCLR 600
#SCLR 1
#SCLR 2
#SCLR 3
#SCLR 4
#SCLR 5
#SCLR 6
#SCLR 8
#SCLR 10
#SCLR 12
#SCLR 15
#SCLR 20
#SCLR 25
#SCLR 30
#SCLR 35
#SCLR 40
#SCLR 45
#SCLR 50
#SCLR 60
#SCLR 70
#SCLR 80
#SCLR 90
#SCLR 100
#SCLR 110
#SCLR 125
#SCLR 150
#SCLR 175
#SCLR 200
#SCLR 225
#SCLR 250
#SCLR 300
#SCLR 350
#SCLR 400
#SCLR 450
#SCLR 500
#SCLR 600
#LENRK 0.1
#LENRK 0.15
#LENRK 0.2
#LENRK 0.25
#LENRK 30
#LENRK 0.4
#LENRK 0.5
#LENRK 0.6
#LENRK 0.8
#LENRK 1
#LENRK 1.125
#LENRK 1.25
#LENRK 1.4
#LENRK 1.6
#LENRK 1.8
#LENRK 2
#LENRK 2.25
#LENRK 2.5
#LENRK 2.8
#LENRK 3
#LENRK 3.2
#LENRK 3.5
#LENRK 4
#LENRK 4.5
#LENRK 5
#LENRK 5.6
#LENRK 6
#LENRK 6.25
#LENRK 7
#LENRK 8
#LENRK 9
#LENRK 10
#LENRK 12
#LENRK 15
#LENRK 17.5
#LENRK 20
#LENRK 25
#LENRK 35
#LENRK 40
#LENRK 45
#LENRK 50
#LENRK 60
#LENRK 70
#LENRK 75
#LENRK 80
#LENRK 90
#LENRK 100
#LENRK 110
#LENRK 125
#LENRK 150
#LENRK 175
#LENRK 200
#LENRK 225
#LENRK 250
#LENRK 300
#LENRK 350
#LENRK 400
#LENRK 450
#LENRK 500
#LENRK 600
#LESRK 0.1
#LESRK 0.15
#LESRK 0.2
#LESRK 0.25
#LESRK 30
#LESRK 0.4
#LESRK 0.5
#LESRK 0.6
#LESRK 0.8
#LESRK 1
#LESRK 1.125
#LESRK 1.25
#LESRK 1.4
#LESRK 1.6
#LESRK 1.8
#LESRK 2
#LESRK 2.25
#LESRK 2.5
#LESRK 2.8
#LESRK 3
#LESRK 3.2
#LESRK 3.5
#LESRK 4
#LESRK 4.5
#LESRK 5
#LESRK 5.6
#LESRK 6
#LESRK 6.25
#LESRK 7
#LESRK 8
#LESRK 9
#LESRK 10
#LESRK 12
#LESRK 15
#LESRK 17.5
#LESRK 20
#LESRK 25
#LESRK 35
#LESRK 40
#LESRK 45
#LESRK 50
#LESRK 60
#LESRK 70
#LESRK 75
#LESRK 80
#LESRK 90
#LESRK 100
#LESRK 110
#LESRK 125
#LESRK 150
#LESRK 175
#LESRK 200
#LESRK 225
#LESRK 250
#LESRK 300
#LESRK 350
#LESRK 400
#LESRK 450
#LESRK 500
#LESRK 600
#A2K1R
#A2K3R
#A2K4R
#A2K5R
#A2K6R
#A2K8R
#A2K10R
#A2K12R
#A2K15R
#A2K20R
#A2K25R
#A2K30R
#A2K35R
#A2K40R
#A2K45R
#A2K50R
#A2K60R
#A2K70R
#A2K80R
#A2K90R
#A2K100R
#A2K110R
#A2K125R
#A2K150R
#A2K175R
#A2K200R
#A2K225R
#A2K250R
#A2K300R
#A2K350R
#A2K400R
#A2K450R
#A2K500R
#A2K600R
#A6K1R
#A6K3R
#A6K4R
#A6K5R
#A6K6R
#A6K8R
#A6K10R
#A6K12R
#A6K15R
#A6K20R
#A6K25R
#A6K30R
#A6K35R
#A6K40R
#A6K45R
#A6K50R
#A6K60R
#A6K70R
#A6K80R
#A6K90R
#A6K100R
#A6K110R
#A6K125R
#A6K150R
#A6K175R
#A6K200R
#A6K225R
#A6K250R
#A6K300R
#A6K350R
#A6K400R
#A6K450R
#A6K500R
#A6K600R
#A2D1/10R
#A2D15/100R
#A2D2/10R
#A2D1/4R
#A2D3/10R
#A2D4/10R
#A2D1/2R
#A2D6/10R
#A2D8/10R
#A2D1R
#A2D1-1/8R
#A2D1-1/4R
#A2D1-4/10R
#A2D1-6/10R
#A2D1-8/10R
#A2D2R
#A2D2-1/4R
#A2D2-1/2R
#A2D2-8/10R
#A2D3R
#A2D3-2/10R
#A2D3-1/2R
#A2D4R
#A2D4-1/2R
#A2D5R
#A2D5-6/10R
#A2D6R
#A2D6-1/4R
#A2D7R
#A2D8R
#A2D9R
#A2D10R
#A2D12R
#A2D15R
#A2D17-1/2R
#A2D20R
#A2D25R
#A2D30R
#A2D35R
#A2D40R
#A2D45R
#A2D50R
#A2D60R
#A2D70R
#A2D75R
#A2D80R
#A2D90R
#A2D100R
#A2D110R
#A2D125R
#A2D150R
#A2D175R
#A2D200R
#A2D225R
#A2D250R
#A2D300R
#A2D350R
#A2D400R
#A2D450R
#A2D500R
#A2D600R
#A6D1/10R
#A6D15/100R
#A6D2/10R
#A6D1/4R
#A6D3/10R
#A6D4/10R
#A6D1/2R
#A6D6/10R
#A6D8/10R
#A6D1R
#A6D1-1/8R
#A6D1-1/4R
#A6D1-4/10R
#A6D1-6/10R
#A6D1-8/10R
#A6D2R
#A6D2-1/4R
#A6D2-1/2R
#A6D2-8/10R
#A6D3R
#A6D3-2/10R
#A6D3-1/2R
#A6D4R
#A6D4-1/2R
#A6D5R
#A6D5-6/10R
#A6D6R
#A6D6-1/4R
#A6D7R
#A6D8R
#A6D9R
#A6D10R
#A6D12R
#A6D15R
#A6D17-1/2R
#A6D20R
#A6D25R
#A6D30R
#A6D35R
#A6D40R
#A6D45R
#A6D50R
#A6D60R
#A6D70R
#A6D75R
#A6D80R
#A6D90R
#A6D100R
#A6D110R
#A6D125R
#A6D150R
#A6D175R
#A6D200R
#A6D225R
#A6D250R
#A6D300R
#A6D350R
#A6D400R
#A6D450R
#A6D500R
#A6D600R
#HSRK70R
#HSRK80R
#HSRK90R
#HSRK100R
#HSRK110R
#HSRK125R
#HSRK150R
#HSRK175R
#HSRK200R
#HSRK225R
#HSRK250R
#HSRK300R
#HSRK350R
#HSRK400R
#HSRK450R
#HSRK500R
#HSRK600R