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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, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: ATD-R, CCMR, LP-CC | ||||||||||
40 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 1 7/8" | 27/32" | 2 | Ferrule | UL Listed | 000000000 | 000000 | 000000 |
UL Class RK5 Fuses


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.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
Overall | Each | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Blown Fuse Indicator | Specifications Met | UL File Number | CSA File Number | 1-9 | 10-Up | |
Manufacturer Equivalent: FLN-R, FRN-R, TR-R | |||||||||||||
40 | 250V AC/125V DC | 20,000 A @ 125 V DC 200,000 A @ 250 V AC | 3" | 13/16" | 2 | Ferrule | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 0000000 | 000000 | 000000 |
Manufacturer Equivalent: FLN-R-ID, FRN-R-ID, TR-R-ID | |||||||||||||
40 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 3" | 13/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 00000 |
Manufacturer Equivalent: FLS-R, FRS-R, TRS-R | |||||||||||||
40 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5 1/2" | 1 1/16" | 2 | Ferrule | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 0000000 | 00000 | 00000 |
Manufacturer Equivalent: FRS-R-ID, IDSR, TRS-R-ID | |||||||||||||
40 | 600V AC/300V DC | 20,000 A @ 300 V DC 200,000 A @ 600 V AC | 5 1/2" | 1 1/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | __ | __ | 00000000 | 00000 | 00000 |
UL Class J Time-Delay Fuses for Tight Spaces


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.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
For technical drawings and 3-D models, click on a part number.
Overall | Each | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Blown Fuse Indicator | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: AJT, JTD, LPJ-SP | |||||||||||
40 | 600V AC/300V DC | 100,000 A @ 300 V DC 300,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 2 | Ferrule | No | UL Listed, CSA Certified | 000000000 | 000000 | 000000 |
Manufacturer Equivalent: AJT, JTD-ID, LPJ-SPI | |||||||||||
40 | 600V AC/400V DC | 100,000 A @ 400 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
UL Class J Fast-Acting Fuses for Tight Spaces

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, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: A4J, JKS, JLS | ||||||||||
40 | 600V AC/175V DC | 10,000 A @ 175 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 000000 | 000000 |
UL Class RK1 Time-Delay Fuses

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. They have a rejection-style end design that safeguards against replacement errors. Designed for use with Fuse Blocks for UL Class RK1 Fuses.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: A2D-R, LLN-RK, LPN-RK | ||||||||||
40 | 250V AC/125V DC | 100,000 A @ 125 V DC 300,000 A @ 250 V AC | 3" | 13/16" | 2 | Ferrule | UL Listed, CSA Certified | 000000000 | 000000 | 000000 |
Manufacturer Equivalent: A6D-R, LLS-RK, LPS-RK | ||||||||||
40 | 600V AC/300V DC | 100,000 A @ 300 V DC 300,000 A @ 600 V AC | 5 1/2" | 1 1/16" | 2 | Ferrule | UL Listed, CSA Certified | 000000000 | 00000 | 00000 |
UL Class RK1 Fast-Acting Fuses

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, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: A6K-R, KLS-R, KTS-R | ||||||||||
40 | 600V AC/300V DC | 20,000 A @ 300 V DC 200,000 A @ 600 V AC | 5 1/2" | 1 1/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 000000 | 000000 |
UL Class K5 Fuses

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, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: NLN, NON, OT | ||||||||||
40 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 3" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
Manufacturer Equivalent: NLS, NOS, OTS | ||||||||||
40 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5 1/2" | 1 1/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
UL Class T Fuses for Extra-Tight Spaces

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, also known as interrupt current, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: A3T, JJN, JLLN | ||||||||||
40 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 7/8" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 000000000 | 000000 | 000000 |
Manufacturer Equivalent: A6T, JJS, JLLS | ||||||||||
40 | 600V AC | 200,000 A @ 600 V AC | 1 9/16" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 000000000 | 00000 | 00000 |
UL Class G 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. They have a smaller footprint than standard size fuses. Protect power distribution branch circuits from overcurrent. Use with Fuse Blocks for UL Class G Fuses.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Specifications Met | 1-9 | 10-Up | |
Manufacturer Equivalent: AG, SC, SLC | ||||||||||
40 | 480V AC/300V DC | 10,000 A @ 300 V DC 100,000 A @ 480 V AC | 2 1/4" | 13/32" | 1 | Ferrule | UL Listed, CSA Certified | 000000000 | 000000 | 000000 |
UL Class H Replaceable-Element Fuses

Replace the current-carrying element rather than the entire fuse after the fuse breaks. Use with Fuse Blocks for UL Class H Fuses.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Replacement Elements for UL Class H Replaceable-Element Fuses

Breakthrough current, labeled on your fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Current, A | Voltage | Breakthrough Current | Protection Type | Pkg. Qty. | Pkg. | |
40 | 250V AC | 10,000 A @ 250 V AC | Fast Acting | 2 | 00000000 | 000000 |
Fuses for Sensitive Electronics


With a quicker response than standard fast-acting fuses, these fuses provide the best protection for sensitive electronics.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | No. of Elements | Cartridge Fuse Style | Protection Type | Specifications Met | Each | |
Manufacturer Equivalent: A30QS, FWX, L25S | ||||||||||
40 | 250V AC | 200,000 A @ 250 V AC | 3 3/16" | 13/16" | 1 | Knife Blade | Fast Acting | UL Recognized Component | 000000000 | 000000 |
Manufacturer Equivalent: A50QS, FWH, L50S | ||||||||||
40 | 500V AC | 200,000 A @ 500 V AC | 3 3/16" | 13/16" | 1 | Knife Blade | Fast Acting | UL Recognized Component | 000000000 | 00000 |
Manufacturer Equivalent: A70QS, FWP, L70S | ||||||||||
40 | 700V AC | 200,000 A @ 700 V AC | 2" | 9/16" | 1 | Ferrule | Fast Acting | UL Recognized Component | 000000000 | 00000 |
Automotive Fuses


These fuses are suitable for low-voltage automotive and other electronic applications. Use with Fuse Blocks for Automotive Fuses.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Fast-acting fuses open circuits quickly when surges are detected.
Time-delay fuses withstand current overload for a short time so they won't open when exposed to harmless temporary surges.
For technical drawings and 3-D models, click on a part number.
Overall | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Ht. | Blade Ht. | Protection Type | Number of Elements | Blown Fuse Indicator | Specifications Met | Pkg. Qty. | Pkg. | |
Manufacturer Equivalent: 257, AF, ATC, ATO | ||||||||||||
Standard Blade Style | ||||||||||||
40 | 32V DC | 1,000 A @ 32 V DC | 3/4" | 0.73" | 0.25" | Fast Acting | 1 | No | UL Listed | 5 | 0000000 | 00000 |
Manufacturer Equivalent: 299, AF3, MAX | ||||||||||||
Maxi Blade Style | ||||||||||||
40 | 32V DC | 1,000 A @ 32 V DC | 1.15" | 1.35" | 0.5" | Time Delay | 1 | No | UL Recognized Component | 1 | 00000000 | 0000 |
Fast-Acting Lift Truck Fuses

These fuses open circuits quickly when surges are detected. Use them on battery-operated lift trucks.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
For technical drawings and 3-D models, click on a part number.
High-Current Automotive Fuses

Suitable for battery and alternator circuit protection, these fuses can handle higher current than standard automotive fuses.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
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.
Breakthrough current, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Fuses with blown fuse indicator have a dot on the side that turns red when the fuse blows.
For technical drawings and 3-D models, click on a part number.
Fuses | DIN-Rail Mount Fuse Blocks | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current, A | UL Class | Voltage | Breakthrough Current | Ht. | Wd. | Dp. | No. of Elements | Blown Fuse Indicator | Protection Type | Specifications Met | Each | Each | ||
Manufacturer Equivalent: TCF | ||||||||||||||
40 | CF | 600V AC/300V DC | 100,000 A @ 300 V DC 300,000 A @ 600 V AC | 2.13" | 1" | 1.13" | 2 | Yes | Time Delay | UL Listed, CSA Certified, EN 63000, IEC 63000 | 0000000 | 0000000 | 0000000 | 000000 |