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    19 Products

    UL Class RK1 Fast-Acting Fuses

    Image of Product. Front orientation. Fuses. UL Class RK1 Fast-Acting Fuses , Ferrule Cartridge Fuse.
    Image of Product. Front orientation. Fuses. UL Class RK1 Fast-Acting Fuses , Knife-Blade Cartridge Fuse.

    Ferrule

    Cartridge Fuse

    Knife-Blade Cartridge

    Fuse

    These fuses open circuits quickly when surges are detected. They have a rejection-style end design that safeguards against replacement errors. Use with Fuse Blocks for UL Class RK1 Fuses.
    Breakthrough Current @ Voltage—Breakthrough current at voltage, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
    Each
    Current,
    amp
    Fuse UL
    Class
    Voltage
    Breakthrough Current @ Voltage
    Overall
    Lg.
    No. of
    Elements
    Cartridge
    Fuse Type
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Rejection-Style
    End
    Certification
    1-9
    10-Up
    Manufacturer Equivalent Fuse: A6K-R, KLS-R, KTS-R
     
    13/16" Overall Diameter
    1RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K111000000000000
    2RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1120000000000
    3RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1130000000000
    4RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1140000000000
    5RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1150000000000
    6RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1160000000000
    8RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1170000000000
    10RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K1180000000000
    12RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K2110000000000
    15RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K2120000000000
    20RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K2130000000000
    25RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K2140000000000
    30RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K2150000000000
     
    1 1/16" Overall Diameter
    40RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    5 1/2"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K3310000000000
    50RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    5 1/2"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K3320000000000
    60RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    5 1/2"1FerruleFast ActingNoYesUL Listed, CSA Certified
    6616K3330000000000
     
    1 5/16" Overall Diameter
    80RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    7 7/8"1Knife BladeFast ActingNoYesUL Listed, CSA Certified
    6616K341000000000000
    90RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    7 7/8"1Knife BladeFast ActingNoYesUL Listed, CSA Certified
    6616K342000000000000
    100RK1600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    7 7/8"1Knife BladeFast ActingNoYesUL Listed, CSA Certified
    6616K343000000000000
     
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