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UL Class J Time-Delay Fuses for Tight Spaces

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.
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 | 1-9 | 10-Up | |
Manufacturer Equivalent: AJT, JTD, LPJ-SP | |||||||||||
250 | 600V AC/300V DC | 100,000 A @ 300 V DC 300,000 A @ 600 V AC | 7 1/8" | 2 1/8" | 2 | Knife Blade | No | UL Listed, CSA Certified | 000000000 | 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 | ||||||||||
250 | 150V AC | 100,000 A @ 150 V AC | 2 11/16" | 1 1/8" | 1 | Knife Blade | Fast Acting | UL Recognized Component | 00000000 | 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.
Time-Delay Lift Truck Fuses

Able to withstand current overload for a short time, these fuses will not open when exposed to harmless temporary surges, such as when starting a motor. Use these fuses 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.
For technical drawings and 3-D models, click on a part number.
Overall | |||||||||
---|---|---|---|---|---|---|---|---|---|
Current, A | Voltage | Breakthrough Current | Lg. | Dia. | Protection Type | No. of Elements | Specifications Met | Each | |
Manufacturer Equivalent: ACK, CCK | |||||||||
250 | 125V DC/125V AC | 10,000 A @ 125 V AC 10,000 A @ 125 V DC | 4 3/4" | 1 1/8" | Time Delay | 1 | UL Recognized Component | 0000000 | 000000 |
High-Current Automotive Fuses

Suitable for battery and alternator circuit protection, these fuses can handle higher current than standard automotive 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.