McMaster-Carr logo
    Filter by
    Fuse Protection Type
    Fuse UL Class
    Number of Elements
    Fuse Trade Size
    Cartridge Fuse Type
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    With Blown Fuse Indicator
    Rejection-Style End
    Performance
    European Fuse Class
    Indicator Type
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    24 Products

    UL Class CC Time-Delay Midget Fuses for Motors

    Image of Product. Front orientation. Fuses. UL Class CC Time-Delay Midget Fuses for Motors .
    These fuses can withstand the high inrush current caused by a motor starting. They provide comparable performance with a smaller footprint than standard size fuses. All have a rejection-style end that safeguards against replacement errors. Use them to protect power distribution branch circuits. Designed for use with Fuse Blocks for UL Class CC 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: ATD-R, CCMR, LP-CC
     
    13/32" Overall Diameter
    12CC600V AC, 500V DC200,000 amp @ 600V AC
    20,000 amp @ 500V DC
    1 1/2"2FerruleTime DelayNoYesUL Listed
    000000000000000000000
     

    Time-Delay Ceramic-Tube Fuses

    Image of Product. 1/4" Dia.. Front orientation. 1/4" Overall Diameter. Time-Delay Ceramic-Tube Fuses .
    Image of Product. 5mm Dia.. Front orientation. 5 mm Overall Diameter. Time-Delay Ceramic-Tube Fuses .

    1/4" Dia.

    5mm Dia.

    Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges. They can withstand temperature swings and high ambient temperatures better than glass-tube fuses. Use them with electronics, control panels, and other sensitive components. Select these fuses by their diameters. Designed for use with Fuse Blocks for Ceramic-Tube Fuses.
    1/4" Overall Diameter—1/4" dia. fuses can be used in high-current electronic circuits such as microwave ovens.
    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
    Fuse Trade
    Size
    Current,
    amp
    Voltage
    Breakthrough Current @ Voltage
    Overall
    Lg.
    No. of
    Elements
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Certification
    UL File
    No.
    Pkg.
    Qty.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: 326, GSA, MDA
     
    1/4" Overall Diameter
    3AB12250V AC10,000 amp @ 125V AC1 1/4"1Time DelayNoUL Listed, CSA Certified, CE Marked
    E191800000000000000000000
     
    Manufacturer Equivalent Fuse: 477
     
    5 mm Overall Diameter
    12500V AC, 400V DC100 amp @ 500V AC
    400 amp @ 400V DC
    20 mm1Time DelayNoUL Recognized Component, CE Marked, C-UL Recognized Component
    E104805000000000000000000
     

    Fast-Acting Glass-Tube Fuses

    Image of Product. 1/4" Dia.. Front orientation. 1/4" Overall Diameter. Fast-Acting Glass-Tube Fuses .

    1/4" Dia.

    These fuses open circuits quickly when surges are detected. The clear glass tube makes it easy to see when fuses open. Use them with electronics, control panels, and other sensitive components. Select them by their diameter. Designed for use with Fuse Blocks for Glass-Tube 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.
    Pkg.
    Fuse Trade
    Size
    Current,
    amp
    Voltage,
    V AC
    Breakthrough Current
    @ Voltage
    Overall
    Lg.
    No. of
    Elements
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Certification
    Pkg.
    Qty.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: 312, AGC, GGC
     
    1/4" Overall Diameter
    3AG1232300 amp @ 32V AC1 1/4"1Fast ActingYesUL Listed
    500000000000000000
     

    Fast-Acting Ceramic-Tube Fuses

    Image of Product. 1/4" Dia.. Front orientation. 1/4" Overall Diameter. Fast-Acting Ceramic-Tube Fuses .

    1/4" Dia.

    These fuses open circuits quickly when surges are detected. They can withstand temperature swings and high ambient temperatures better than glass-tube fuses. Use with electronics, control panels, and other sensitive components. Select these fuses by their diameters. Designed for use with Fuse Blocks for Ceramic-Tube Fuses.
    1/4" Overall Diameter—1/4" dia. fuses can be used in high-current electronic circuits such as microwave ovens.
    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.
    Pkg.
    Fuse Trade
    Size
    Voltage
    Breakthrough Current @ Voltage
    Overall
    Lg.
    No. of
    Elements
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Certification
    Current,
    amp
    Pkg.
    Qty.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: 322, GBB
     
    1/4" Overall Diameter
    3AB250V AC, 125V DC10,000 amp @ 125V AC
    10,000 amp @ 125V DC
    1 1/4"1Fast ActingNoUL Recognized Component, CSA Certified
    12000000000000000000000
     
    Manufacturer Equivalent Fuse: 314, ABC, GAB
     
    1/4" Overall Diameter
    3AB250V AC, 125V DC10,000 amp @ 125V AC
    10,000 amp @ 125V DC
    1 1/4"1Fast ActingNoUL Listed, CSA Certified
    12500000000000000000
     
    Manufacturer Equivalent Fuse: 505
     
    1/4" Overall Diameter
    3AB450V AC20,000 amp @ 450V AC1 1/4"1Fast ActingNoUL Recognized Component, C-UL Recognized Component
    1250000000000000000000
     

    UL Class CC Time-Delay Midget Fuses for Transformers

    Image of Product. Front orientation. Fuses. UL Class CC Time-Delay Midget Fuses for Transformers .
    Designed to handle high inrush currents and the initial current cycle unique to transformers, these fuses provide comparable performance with a smaller footprint than standard size fuses. Use them to protect power distribution branch circuits. They’re for use with Fuse Blocks for UL Class CC Fuses.
    With Rejection-Style End—Fuses with a rejection-style end safeguard against replacement errors.
    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: ATQ-R, FNQ-R, KLD-R
     
    13/32" Overall Diameter
    12CC600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    1 1/2"1FerruleTime DelayNoYesUL Listed
    0000000000000000000
     

    UL Class RK5 Fuses

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

    Ferrule Cartridge

    Fuse, With Blown

    Fuse Indicator

    Ferrule

    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
     
    9/16" Overall Diameter
    12RK5250V AC, 125V DC200,000 amp @ 250V AC
    20,000 amp @ 125V DC
    2"2FerruleTime DelayNoYesUL Listed, CSA Certified
    E4273053787_C_0000000000000000000000
     
    Manufacturer Equivalent Fuse: FLS-R, FRS-R, TRS-R
     
    13/16" Overall Diameter
    12RK5600V AC, 300V DC200,000 amp @ 600V AC
    20,000 amp @ 300V DC
    5"2FerruleTime DelayNoYesUL Listed, CSA Certified
    E4273053787_C_00000000000000000000
     
    Manufacturer Equivalent Fuse: FRS-R-ID, IDSR, TRS-R-ID
     
    13/16" Overall Diameter
    12RK5600V AC, 600V DC200,000 amp @ 600V AC
    20,000 amp @ 600V DC
    5"2FerruleTime DelayYesYesUL Listed, CSA Certified
    E2137012636_0_000000000000000000000
     

    UL Class CC Fast-Acting Midget Fuses

    Image of Product. Front orientation. Fuses. UL Class CC Fast-Acting Midget Fuses .
    These fuses open circuits quickly when surges are detected. They provide comparable performance with a smaller footprint than standard size fuses. Use them in power distribution branch circuits. All have a rejection-style end that safeguards against replacement errors. Designed for use with Fuse Blocks for UL Class CC 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: ATM-R, KLK-R, KTK-R
     
    13/32" Overall Diameter
    12CC600200,000 amp @ 600V AC1 1/2"1FerruleFast ActingNoYesUL Listed
    000000000000000000000
     

    Time-Delay Midget Fuses

    Image of Product. Front orientation. Fuses. Time-Delay Midget Fuses .
    Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor. Use them to protect equipment—they are not designed for power distribution circuits. Designed for use with Fuse Blocks for Midget 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
    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: ATQ, FLQ, FNQ
     
    13/32" Overall Diameter
    1250010,000 amp @ 500V AC1 1/2"1FerruleTime DelayNoNoUL Listed, CSA Certified
    000000000000000000
     
    Manufacturer Equivalent Fuse: FLM, FNM, TRM
     
    13/32" Overall Diameter
    1225010,000 amp @ 250V AC1 1/2"1FerruleTime DelayNoNoUL Listed, CSA Certified
    000000000000000
     

    UL Class J Time-Delay Fuses for Tight Spaces

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

    Ferrule

    Cartridge Fuse,

    With Blown Fuse

    Indicator

    Ferrule

    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
     
    13/16" Overall Diameter
    12J600V AC, 300V DC300,000 amp @ 600V AC
    100,000 amp @ 300V DC
    2 1/4"2FerruleTime DelayNoNoUL Listed, CSA Certified
    000000000000000000000
     
    Manufacturer Equivalent Fuse: AJT, JTD-ID, LPJ-SPI
     
    13/16" Overall Diameter
    12J600V AC, 400V DC200,000 amp @ 600V AC
    100,000 amp @ 400V DC
    2 1/4"1FerruleTime DelayYesNoUL Listed, CSA Certified
    00000000000000000
     

    Fast-Acting Midget Fuses

    Image of Product. Front orientation. Fuses. Fast-Acting Midget Fuses .
    These fuses open circuits quickly when surges are detected. Use them to protect equipment—they are not designed for power distribution circuits. Designed for use with Fuse Blocks for Midget 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
    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: ATM, DCM, KLKD
     
    13/32" Overall Diameter
    12600V AC, 600V DC100,000 amp @ 600V AC
    10,000 amp @ 600V DC
    1 1/2"1FerruleFast ActingNoNoUL Listed, CSA Certified
    000000000000000000
     
    Manufacturer Equivalent Fuse: ATM, KLK, KTK
     
    13/32" Overall Diameter
    12600V AC100,000 amp @ 600V AC1 1/2"1FerruleFast ActingNoNoUL Listed, CSA Certified
    0000000000000000000
     
    Manufacturer Equivalent Fuse: BAF, BLF, OTM
     
    13/32" Overall Diameter
    12250V AC750 amp @ 250V AC1 1/2"1FerruleFast ActingNoNoUL Listed, CSA Certified
    0000000000000000
     

    European Fuses

    Image of Product. Front orientation. Fuses. European Fuses .
    These fuses can be used with equipment made in Europe.
    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
    Voltage,
    V AC
    Breakthrough Current
    @ Voltage
    Overall
    Lg., mm
    No. of
    Elements
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Certification
    1-9
    10-Up
    Class gL/gG
     
    10 mm Overall Diameter
    12500120,000 amp @ 500V AC381Fast ActingNoCE Marked
    0000000000000000000
     

    UL Class K5 Fuses

    Image of Product. Front orientation. Fuses. UL Class K5 Fuses , Ferrule Cartridge Fuse.

    Ferrule

    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
     
    9/16" Overall Diameter
    12K5250V AC, 250V DC50,000 amp @ 250V AC
    20,000 amp @ 250V DC
    2"1FerruleFast ActingNoNoUL Listed, CSA Certified
    E2137012636_0_000000000000000000000
     

    UL Class RK1 Fast-Acting Fuses

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

    Ferrule

    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
    12RK1600V AC, 250V DC200,000 amp @ 600V AC
    20,000 amp @ 250V DC
    5"1FerruleFast ActingNoYesUL Listed, CSA Certified
    00000000000000000000
     

    UL Class J Fast-Acting Fuses for Tight Spaces

    Image of Product. Front orientation. Fuses. UL Class J Fast-Acting Fuses for Tight Spaces , Ferrule Cartridge Fuse.

    Ferrule

    Cartridge Fuse

    These fuses open circuits quickly when surges are detected. More compact than UL Class RK1 or RK5 fuses, they are suitable for tight spaces. Use with Fuse Blocks for UL Class J 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
    UL File
    No.
    1-9
    10-Up
    Manufacturer Equivalent Fuse: A4J, JKS, JLS
     
    13/16" Overall Diameter
    12J600200,000 amp @ 600V AC2 1/4"1FerruleFast ActingNoNoUL Listed, CSA Certified
    E427300000000000000000000
     

    1,000V DC Fuses

    Image of Product. Front orientation. Fuses. 1,000V DC Fuses .
    Developed for the solar industry, these fuses meet the needs of high-voltage DC applications. They can withstand the cycling conditions and environment associated with outdoor installations. Designed for use with fuse blocks for 1,000V DC 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.
    Current,
    amp
    Voltage,
    V DC
    Breakthrough Current
    @ Voltage
    Overall
    Lg.
    No. of
    Elements
    Cartridge
    Fuse Type
    Fuse Protection
    Type
    With Blown Fuse
    Indicator
    Rejection-Style
    End
    Certification
    Specs. Met
    Each
    Manufacturer Equivalent Fuse: DCT, PV
     
    13/32" Overall Diameter
    121,00010,000 amp @ 1,000V DC1 1/2"1FerruleFast ActingNoNoUL Listed
    EN 63000, IEC 6300000000000000000
     
    back to top