Fuse Type Fuse Type |
---|
![]() | Cartridge |
UL Class UL Class |
---|
|
Protection Type Protection Type |
---|
|
Cartridge Fuse Style Cartridge Fuse Style |
---|
|
Breakthrough Current Breakthrough Current |
---|
|
Number of Elements Number of Elements |
---|
|
Blown Fuse Indicator Blown Fuse Indicator |
---|
|
Rejection-Style End Rejection-Style End |
---|
|
CSA File Number CSA File Number |
---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
---|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
Don’t see the fuse you need? Just tell us what you’re looking for and we’ll get it for you.
About Fuses
More
UL Class K5 Fuses

Ferrule Style

Knife-Blade Style
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 | ||||||||||
1 | 250V AC/125V DC | 50,000 A @ 125 V DC 50,000 A @ 250 V AC | 2" | 9/16" | 1 | Ferrule | UL Listed, CSA Certified, CE Marked | 00000000 | 000000 | 000000 |
2 | 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 |
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 | 0000 | 0000 |
4 | 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 |
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 |
7 | 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 |
8 | 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 |
12 | 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 |
25 | 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 |
45 | 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 |
Manufacturer Equivalent: NLS, NOS, OTS | ||||||||||
3 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
5 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
10 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
15 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
20 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
25 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
30 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 5" | 13/16" | 1 | Ferrule | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
35 | 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 | 0000000 | 00000 | 00000 |
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 |
50 | 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 |
60 | 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 |
70 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 7 7/8" | 1 5/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
80 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 7 7/8" | 1 5/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
100 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 7 7/8" | 1 5/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |
200 | 600V AC/300V DC | 20,000 A @ 300 V DC 50,000 A @ 600 V AC | 9 5/8" | 1 13/16" | 1 | Knife Blade | UL Listed, CSA Certified | 00000000 | 00000 | 00000 |