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About Fuses
More
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 | ||||||||||
35 | 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 |
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 | 00000 | 00000 |
45 | 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 | 00000 | 00000 |
50 | 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 | 00000 | 00000 |
60 | 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 | 00000 | 00000 |
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, FRN-R, TR-R | |||||||||||||
300 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 8 5/8" | 2 3/8" | 2 | Knife Blade | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 00000000 | 0000000 | 0000000 |
400 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 8 5/8" | 2 3/8" | 2 | Knife Blade | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 0000000 | 000000 | 000000 |
600 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 10 3/8" | 2 7/8" | 2 | Knife Blade | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 00000000 | 000000 | 000000 |
Manufacturer Equivalent: FLN-R-ID, FRN-R-ID, TR-R-ID | |||||||||||||
35 | 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 |
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 |
45 | 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 |
50 | 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 |
60 | 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 |
70 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
80 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
90 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
100 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
125 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 7 1/8" | 1 9/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
150 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 7 1/8" | 1 9/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
200 | 250V DC/250V AC | 20,000 A @ 250 V DC 200,000 A @ 250 V AC | 7 1/8" | 1 9/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636-0-000 | 00000000 | 00000 | 00000 |
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 | ||||||||||
100 | 250V DC/250V AC | 100,000 A @ 250 V DC 300,000 A @ 250 V AC | 5 7/8" | 1 3/16" | 2 | Knife Blade | UL Listed, CSA Certified | 00000000 | 000000 | 000000 |
125 | 250V DC/250V AC | 100,000 A @ 250 V DC 300,000 A @ 250 V AC | 7 1/8" | 1 11/16" | 2 | Knife Blade | UL Listed, CSA Certified | 000000000 | 000000 | 00000 |
200 | 250V DC/250V AC | 100,000 A @ 250 V DC 300,000 A @ 250 V AC | 7 1/8" | 1 11/16" | 2 | Knife Blade | UL Listed, CSA Certified | 00000000 | 000000 | 00000 |
400 | 250V DC/250V AC | 100,000 A @ 250 V DC 300,000 A @ 250 V AC | 8 5/8" | 2 3/8" | 2 | Knife Blade | UL Listed, CSA Certified | 00000000 | 000000 | 000000 |
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 | ||||||||||
1 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 000000 | 000000 |
2 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
3 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
4 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
5 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
6 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
8 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
10 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
12 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
15 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
20 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
25 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
30 | 600V AC/250V DC | 20,000 A @ 250 V DC 200,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
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 | ||||||||||
3 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
5 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
6 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
10 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
15 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
20 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
30 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 0000 | 0000 |
35 | 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 | 0000 | 0000 |
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 | 0000 | 0000 |
50 | 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 | 0000 | 0000 |
60 | 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 | 0000 | 0000 |
70 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
80 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
100 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 5 7/8" | 1 1/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
200 | 250V AC/250V DC | 20,000 A @ 250 V DC 50,000 A @ 250 V AC | 7 1/8" | 1 9/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |