About Fuses
More
Don’t see the fuse you need? Just tell us what you’re looking for and we’ll get it for you.
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 | |||||||||||||
| 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 |
Manufacturer Equivalent: FLS-R, FRS-R, TRS-R | |||||||||||||
| 300 | 600V AC/300V DC | 20,000 A @ 300 V DC 200,000 A @ 600 V AC | 11 5/8" | 2 11/32" | 2 | Knife Blade | No | UL Listed, CSA Certified | E4273 | 053787_C_000 | 0000000 | 000000 | 000000 |
Manufacturer Equivalent: FRS-R-ID, IDSR, TRS-R-ID | |||||||||||||
| 300 | 600V DC/600V AC | 20,000 A @ 600 V DC 200,000 A @ 600 V AC | 11 5/8" | 2 9/16" | 2 | Knife Blade | Yes | UL Listed, CSA Certified | E2137 | 012636_0_000 | 00000000 | 000000 | 000000 |
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 | ||||||||||
| 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 | 0000000 | 0000000 |
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: A15QS, FWA, L15S | ||||||||||
| 300 | 150V AC | 100,000 A @ 150 V AC | 2 11/16" | 1 1/8" | 1 | Knife Blade | Fast Acting | UL Recognized Component | 00000000 | 000000 |
Manufacturer Equivalent: A50QS, FWH, L50S | ||||||||||
| 300 | 500V AC | 200,000 A @ 500 V AC | 4 5/16" | 1 1/2" | 1 | Knife Blade | Fast Acting | UL Recognized Component | 000000000 | 000000 |
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.