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
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (CAD) 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 20A 600VAC VDC FF KLC POWR-SPEED
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

KLC Specialty Fuses Cartridge Blade Fuses 20 A 600 VAC 200 kA at 600 VAC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 40A 600VAC VDC FF KLC POWR-SPEED
Datasheet
16Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

KLC Specialty Fuses Cartridge Blade Fuses 40 A 600 VAC 200 kA at 600 VAC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 45A 600VAC VDC FF KLC POWR-SPEED
Datasheet
5Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

KLC Specialty Fuses Cartridge Blade Fuses 45 A 600 VAC 200 kA at 600 VAC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 50A 150VAC 150VDC FF L15S POWR-SPEED
Datasheet
5Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 50 A 150 VAC 150 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 60A 150VAC 150VDC FF L15S POWR-SPEED
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 60 A 150 VAC 150 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 70A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
31Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 70 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 80A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
25Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 80 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 90A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
130Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 90 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 125A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
64Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 125 A 150 VAC 100 VDC 100 kA at 150 VAC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 200A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
74Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 200 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 400A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 400 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 450A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 450 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 600A 150VAC 100VDC FF L15S POWR-SPEED
Datasheet
15Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L15S Specialty Fuses Round Body Blade Fuses 600 A 150 VAC 100 VDC 20 kA at 100 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 12A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
5Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 12 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 15A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 15 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 175A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
281Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 175 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 275A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
18Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 275 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 600A 500VAC 450VDC FF L50S POWR-SPEED
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50S Specialty Fuses Round Body Blade Fuses 600 A 500 VAC 450 VDC 20 kA at 450 VDC Stud Bolt Down Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 10A 600VAC VDC FF L60S POWR-SPEED
Datasheet
8Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 10 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 15A 600VAC VDC FF L60S POWR-SPEED
Datasheet
34Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 15 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 20A 600VAC VDC FF L60S POWR-SPEED
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 20 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 30A 600VAC VDC FF L60S POWR-SPEED
Datasheet
32Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 30 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 35A 600VAC VDC FF L60S POWR-SPEED
Datasheet
29Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 35 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 40A 600VAC VDC FF L60S POWR-SPEED
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 40 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk
Littelfuse Specialty Fuses 45A 600VAC VDC FF L60S POWR-SPEED
Datasheet
34Factory Stock Available
More Info Available
Min.: 1
Mult.: 1
No
L60S Specialty Fuses Cartridge Fuses 45 A 600 VAC 200 kA at 600 VAC Holder Clip Fast Blow Without Indicator Bulk