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    11 Products
    About Fuses
    industrial info icon

    Compare across fuse type, UL class, and voltage. Then cross-reference manufacturer part numbers to find suitable replacements.

    UL Class RK5 Fuses

    Image of Product. Front orientation. Fuses. UL Class RK5 Fuses , Knife-Blade Cartridge Fuse, With Blown Fuse Indicator.
    Image of Product. Front orientation. Fuses. UL Class RK5 Fuses , Knife-Blade Cartridge Fuse, Without Blown Fuse Indicator.

    Knife-Blade Cartridge

    Fuse, With Blown Fuse

    Indicator

    Knife-Blade Cartridge

    Fuse, Without Blown

    Fuse Indicator

    Also known as dual-element fuses, these time-delay fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor. They have a rejection-style end design that safeguards against replacement errors. Use with Fuse Blocks for UL Class RK5 Fuses.
    With Blown Fuse Indicator—Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
    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
    UL File
    No.
    CSA File
    No.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: FLN-R, FRN-R, TR-R
     
    1 1/16" Overall Diameter
    70RK5250V AC200,000 amp @ 250V AC5 7/8"2Knife BladeTime DelayNoYesUL Listed, CSA Certified
    		E4273053787_C_0007049K262000000000000
     
    Manufacturer Equivalent Fuse: FLN-R-ID, FRN-R-ID, TR-R-ID
     
    1 1/16" Overall Diameter
    70RK5250V AC, 250V DC200,000 amp @ 250V AC
    20,000 amp @ 250V DC    		5 7/8"2Knife BladeTime DelayYesYesUL Listed, CSA Certified
    		E2137012636_0_0007487K7810000000000
     
    Manufacturer Equivalent Fuse: FLS-R, FRS-R, TRS-R
     
    1 1/8" Overall Diameter
    70RK5600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC    		7 7/8"2Knife BladeTime DelayNoYesUL Listed, CSA Certified
    		E4273053787_C_0007049K3120000000000
     
    Manufacturer Equivalent Fuse: FRS-R-ID, IDSR, TRS-R-ID
     
    1 5/16" Overall Diameter
    70RK5600V AC, 600V DC200,000 amp @ 600V AC
    20,000 amp @ 600V DC    		7 7/8"2Knife BladeTime DelayYesYesUL Listed, CSA Certified
    		E2137012636_0_0007487K5140000000000
     

    UL Class J Time-Delay Fuses for Tight Spaces

    Image of Product. Front orientation. Fuses. UL Class J Time-Delay Fuses for Tight Spaces , Knife-Blade Cartridge Fuse, With Blown Fuse Indicator.
    Image of Product. Front orientation. Fuses. UL Class J Time-Delay Fuses for Tight Spaces , Knife-Blade Cartridge Fuse, Without Blown Fuse Indicator.

    Knife-Blade

    Cartridge Fuse,

    With Blown Fuse

    Indicator

    Knife-Blade

    Cartridge Fuse,

    Without Blown Fuse

    Indicator

    Also known as dual-element fuses, these fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor. More compact than UL Class RK1 or RK5 fuses, they are suitable for tight spaces. Use with Fuse Blocks for UL Class J Fuses.
    With Blown Fuse Indicator—Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
    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: AJT, JTD, LPJ-SP
     
    1 1/8" Overall Diameter
    70J600V AC, 300V DC300,000 amp @ 600V AC
    100,000 amp @ 300V DC    		4 5/8"2Knife BladeTime DelayNoNoUL Listed, CSA Certified
    		70325K51300000000000000
     
    Manufacturer Equivalent Fuse: AJT, JTD-ID, LPJ-SPI
     
    1 1/16" Overall Diameter
    70J600V AC, 400V DC200,000 amp @ 600V AC
    100,000 amp @ 400V DC    		4 5/8"2Knife BladeTime DelayYesNoUL Listed, CSA Certified
    		5054T310000000000
     

    UL Class K5 Fuses

    Image of Product. Front orientation. Fuses. UL Class K5 Fuses , Knife-Blade Cartridge Fuse.

    Knife-Blade

    Cartridge Fuse

    Use these fast-acting fuses in applications where temporary overload current is not present, such as in lighting and heating. They open circuits quickly when surges are detected. Use with Fuse Blocks for UL Class K5 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
    UL File
    No.
    CSA File
    No.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: NLN, NON, OT
     
    1 1/16" Overall Diameter
    70K5250V AC, 250V DC50,000 amp @ 250V AC
    20,000 amp @ 250V DC    		5 7/8"1Knife BladeFast ActingNoNoUL Listed, CSA Certified
    		E2137012636_0_0007072K131000000000000
     
    Manufacturer Equivalent Fuse: NLS, NOS, OTS
     
    1 5/16" Overall Diameter
    70K5600V AC, 300V DC50,000 amp @ 600V AC
    20,000 amp @ 300V DC    		7 7/8"1Knife BladeFast ActingNoNoUL Listed, CSA Certified
    		E2137012636_0_0007072K1490000000000
     

    UL Class T Fuses for Extra-Tight Spaces

    Image of Product. Front orientation. Fuses. UL Class T Fuses for Extra-Tight Spaces , Knife-Blade Cartridge Fuse.

    Knife-Blade

    Cartridge Fuse

    Smaller than UL Class J fuses, these fast-acting fuses can be used in extra-tight spaces such as meters, uninterruptible power supplies, and variable-speed drives. They open circuits quickly when surges are detected. Use with Fuse Blocks for UL Class T 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,
    V AC
    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: A6T, JJS, JLLS
     
    3/4" Overall Diameter
    70T600200,000 amp @ 600V AC2 15/16"1Knife BladeFast ActingNoNoUL Listed, CSA Certified, CE Marked
    		70455K831000000000000
     

    Touch-Safe Fuses

    Image of Product. Front orientation. Fuses. Touch-Safe Fuses .
    Prevent accidental contact with electrical circuits—these fuses have an enclosed design with recessed plug-in blades. Also known as dual-element fuses, they withstand current overload for a short time so they won't open when exposed to harmless temporary surges, such as when starting a motor.
    With Blown Fuse Indicator—Fuses with blown fuse indicator have a dot on the side that turns red when the fuse blows.
    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.
    Fuses
    DIN-Rail Mount
    Fuse Blocks
    Current,
    amp
    Fuse UL
    Class
    Voltage
    Breakthrough Current @ Voltage
    Ht.
    Wd.
    Dp.
    No. of
    Elements
    Fuse Protection Type
    With Blown Fuse
    Indicator
    Certification
    Specs. Met
    Each
    Each
    Manufacturer Equivalent Fuse: TCF
    70CF600V AC, 300V DC300,000 amp @ 600V AC
    100,000 amp @ 300V DC    		3.01"1"1.26"2Time Delay, Touch SafeYesUL Listed, CSA Certified
    		EN 63000, IEC 630008078K3400000008078K41000000
     
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