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Manufacturer Equivalent Manufacturer Equivalent | Show |
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Manufacturer Equivalent Manufacturer Equivalent | Hide |
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UL Class UL Class |
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Blown Fuse Indicator Blown Fuse Indicator |
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Fuse Type Fuse Type |
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![]() | Cartridge |
Protection Type Protection Type |
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Breakthrough Current Breakthrough Current |
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Cartridge Fuse Style Cartridge Fuse Style |
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Indicator Type Indicator Type |
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Rejection-Style End Rejection-Style End |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Fuses
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UL Class J Time-Delay Fuses for Tight Spaces

Ferrule Style with Blown-Fuse Indicator

Knife-Blade Style with 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.
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 | ||||||||||
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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-ID, LPJ-SPI | |||||||||||
8 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 000000 | 000000 |
9 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
10 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
12 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
15 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
17 1/2 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
20 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
25 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
30 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 1/4" | 13/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
35 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
40 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
45 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
50 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
60 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 2 3/8" | 1 1/16" | 1 | Ferrule | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
70 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 4 5/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
80 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 4 5/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
90 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 4 5/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
100 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 4 5/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 00000 | 00000 |
125 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 5 3/4" | 1 5/8" | 4 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 000000 | 000000 |
150 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 5 3/4" | 1 5/8" | 4 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 000000 | 000000 |
175 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 5 3/4" | 1 5/8" | 4 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 000000 | 000000 |
200 | 600V AC/500V DC | 100,000 A @ 500 V DC 200,000 A @ 600 V AC | 5 3/4" | 1 5/8" | 4 | Knife Blade | Yes | UL Listed, CSA Certified | 0000000 | 000000 | 000000 |