Fast-Acting High-Speed Fuses

Littelfuse Fast-Acting High-Speed Fuses are designed to protect equipment and systems. These fast-acting fuses feature Littelfuse-developed technology that sets standards for accuracy, consistent quality, reliability, and predictable performance. Littelfuse Fast-Acting High-Speed Fuses are optimized for performance and efficiency to better protect critical power semiconductors against short circuits.

Results: 189
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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Body Style
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Mounting Style
Termination Style
Fuse Type
Fuse Size/Group
Indicator Style
Packaging
Littelfuse Specialty Fuses 50A 600VAC VDC FF L60S POWR-SPEED
Datasheet
10Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 50 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 60A 600VAC VDC FF L60S POWR-SPEED
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L60S Specialty Fuses Cartridge Fuses 60 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 70A 600VAC VDC FF L60S POWR-SPEED
Datasheet
4Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 70 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 150A 600VAC VDC FF L60S POWR-SPEED
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 150 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 225A 600VAC VDC FF L60S POWR-SPEED
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 225 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 400A 600VAC VDC FF L60S POWR-SPEED
Datasheet
4Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 400 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 500A 600VAC VDC FF L60S POWR-SPEED
Datasheet
8Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 500 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 600A 600VAC VDC FF L60S POWR-SPEED
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 600 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 30A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
54Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 30 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 175A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
14Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 175 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 250A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
19Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 250 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 400A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 400 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 450A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
11Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 450 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 600A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 600 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 700A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
17Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 700 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 400A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
1Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 400 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 25A 250VAC 250VDC FF L25S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 10 Weeks
Min.: 1
Mult.: 1

L25S Specialty Fuses Round Body Blade Fuses 25 A 250 VAC 250 VDC 20 kA at 250 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 150A 250VAC 250VDC FF L25S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

L25S Specialty Fuses Round Body Blade Fuses 150 A 250 VAC 250 VDC 20 kA at 250 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 275A 250VAC 200VDC FF L25S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

L25S Specialty Fuses Round Body Blade Fuses 275 A 250 VAC 200 VDC 20 kA at 200 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 700A 250VAC 200VDC FF L25S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

L25S Specialty Fuses Round Body Blade Fuses 700 A 250 VAC 200 VDC 20 kA at 200 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 800A 250VAC 200VDC FF L25S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

L25S Specialty Fuses Round Body Blade Fuses 800 A 250 VAC 200 VDC 20 kA at 200 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 125A 600VAC VDC FF L60S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1

L60S Specialty Fuses Cartridge Fuses 125 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 80A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 80 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 800A 700VAC 650VDC FF L70S POWR-SPEED
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 1
Mult.: 1

L70S Specialty Fuses Round Body Blade Fuses 800 A 700 VAC 650 VDC 20 kA at 650 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 1A 600VAC VDC FF KLC POWR-SPEED
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1

KLC Specialty Fuses Cartridge Blade Fuses 1 A 600 VAC 200 kA at 600 VAC Stud Bolt Down Fast Blow Without Indicator Bulk