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Decipher key specs from your fuse’s label and cross-reference manufacturer part numbers to find a suitable replacement.
Fuses for Sensitive Electronics
 |  |
Ferrule Cartridge Fuse | Knife-Blade Cartridge Fuse |
With a quicker response than standard fast-acting fuses, these fuses provide the best protection for sensitive electronics.
Breakthrough Current @ Voltage—Breakthrough current at voltage, labeled on the fuse as IR, is the maximum current that a fuse can safely stop in the event of a short circuit.
Current, amp | Voltage, V AC | Breakthrough Current @ Voltage | Overall Lg. | No. of Elements | Cartridge Fuse Type | Fuse Protection Type | With Blown Fuse Indicator | Rejection-Style End | Certification | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Manufacturer Equivalent Fuse: A70QS, FWP, L70S | |||||||||||||
9/16" Overall Diameter | |||||||||||||
| 10 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K415 | 000000 | ||
| 20 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K411 | 00000 | ||
| 25 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K412 | 00000 | ||
| 30 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K413 | 00000 | ||
| 32 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K42 | 00000 | ||
| 40 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K414 | 00000 | ||
| 50 | 700 | 200,000 amp @ 700V AC | 2" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K43 | 00000 | ||
7/8" Overall Diameter | |||||||||||||
| 63 | 700 | 200,000 amp @ 700V AC | 2 5/16" | 1 | Ferrule | Fast Acting | No | No | UL Recognized Component | 74475K47 | 00000 | ||
1 1/2" Overall Diameter | |||||||||||||
| 150 | 700 | 200,000 amp @ 700V AC | 5 1/16" | 1 | Knife Blade | Fast Acting | No | No | UL Recognized Component | 74475K44 | 000000 | ||
2" Overall Diameter | |||||||||||||
| 400 | 700 | 200,000 amp @ 700V AC | 5 1/16" | 1 | Knife Blade | Fast Acting | No | No | UL Recognized Component | 74475K45 | 000000 | ||
