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Breakthrough Current @ Voltage
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UL Class RK5 Fuses
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Knife-Blade Cartridge Fuse, Without Blown Fuse Indicator |
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 @ 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.
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Current, amp | Fuse UL Class | Voltage | Breakthrough Current @ Voltage | Overall Lg. | No. of Elements | Cartridge Fuse Type | Fuse Protection Type | With Blown Fuse Indicator | Rejection-Style End | Certification | UL File No. | CSA File No. | 1-9 | 10-Up | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer Equivalent Fuse: FLN-R, FRN-R, TR-R | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 7/8" Overall Diameter | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 600 | RK5 | 250V AC, 250V DC | 200,000 amp @ 250V AC 20,000 amp @ 250V DC | 10 3/8" | 2 | Knife Blade | Time Delay | No | Yes | UL Listed, CSA Certified | E4273 | 053787_C_000 | 00000000 | 0000000 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer Equivalent Fuse: FLS-R, FRS-R, TRS-R | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 7/8" Overall Diameter | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 600 | RK5 | 600V AC, 300V DC | 200,000 amp @ 600V AC 20,000 amp @ 300V DC | 13 3/8" | 2 | Knife Blade | Time Delay | No | Yes | UL Listed, CSA Certified | E4273 | 053787_C_000 | 00000000 | 000000 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
UL Class RK1 Time-Delay Fuses
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Knife-Blade Cartridge Fuse |
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 @ 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.
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Current, amp | Fuse UL Class | Voltage | Breakthrough Current @ Voltage | Overall Lg. | No. of Elements | Cartridge Fuse Type | Fuse Protection Type | With Blown Fuse Indicator | Rejection-Style End | Certification | 1-9 | 10-Up | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer Equivalent Fuse: A6D-R, LLS-RK, LPS-RK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2 7/8" Overall Diameter | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 600 | RK1 | 600V AC, 300V DC | 300,000 amp @ 600V AC 100,000 amp @ 300V DC | 13 3/8" | 2 | Knife Blade | Time Delay | No | Yes | UL Listed, CSA Certified | 00000000 | 0000000 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fuses for Sensitive Electronics
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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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Manufacturer Equivalent Fuse: A50QS, FWH, L50S | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2" Overall Diameter | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 600 | 500 | 200,000 amp @ 500V AC | 4 5/16" | 1 | Knife Blade | Fast Acting | No | No | UL Recognized Component | 000000000 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fast-Acting Lift Truck Fuses
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These fuses open circuits quickly when surges are detected. Use them on battery-operated lift trucks.
With Blown Fuse Indicator—Fuses with blown fuse indicator have a dot on the side that changes color when the fuse blows.
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.
