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Breakthrough Current Breakthrough Current |
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Cartridge Fuse Style Cartridge Fuse Style |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Indicator Type Indicator Type |
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UL File Number UL File Number |
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CSA File Number CSA File Number |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Fuses
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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.
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 | UL File Number | CSA File Number | 1-9 | 10-Up | |
Manufacturer Equivalent: FLN-R-ID, FRN-R-ID, TR-R-ID | |||||||||||||
| 8 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 000000 | 000000 |
| 10 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 00000 |
| 15 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 0000 |
| 20 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 0000 |
| 25 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 0000 |
| 30 | 250V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 250 V AC | 2" | 9/16" | 2 | Ferrule | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 00000 | 0000 |
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 | ||||||||||
| 15 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 7/8" | 7/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 000000000 | 000000 | 000000 |
| 20 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 7/8" | 7/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 000000000 | 00000 | 00000 |
| 30 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 7/8" | 7/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 000000000 | 00000 | 00000 |
| 35 | 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 | 00000 | 00000 |
| 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 | 00000 | 00000 |
| 50 | 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 | 00000 | 00000 |
| 60 | 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 | 00000 | 00000 |
| 80 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 3/16" | 3/4" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 00000 | 00000 |
| 100 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 3/16" | 3/4" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 00000 | 00000 |
| 150 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 7/16" | 7/8" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 00000 | 00000 |
| 200 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 7/16" | 7/8" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 00000 | 00000 |
| 300 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 3/4" | 1" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 000000 | 000000 |
| 400 | 300V AC/160V DC | 20,000 A @ 160 V DC 200,000 A @ 300 V AC | 2 3/4" | 1" | 1 | Knife Blade | UL Listed, CSA Certified, CE Marked | 00000000 | 00000 | 00000 |

























