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Qty. RoHS ECAD Model Series
Product
Current Rating
Voltage Rating AC
Fuse Type
Voltage Rating DC
Interrupt Rating
Body Style
Mounting Style
Termination Style
Fuse Size/Group
Indicator Style
Packaging
Littelfuse Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
41In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 400 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
93In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 600 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 50.8 mm x 113.49 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
54In Stock
Min.: 1
Mult.: 1
L50QS Specialty Fuses 100 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
42In Stock
Min.: 1
Mult.: 1
L50QS Specialty Fuses 125 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 30.94 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
46In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 150 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 30.94 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
52In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 200 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 30.94 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
30In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 250 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
51In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 300 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
65In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 350 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
16In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 500 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 50.8 mm x 113.49 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
61In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 35 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
62In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 90 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 225A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
18In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 225 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
31In Stock
Min.: 1
Mult.: 1
L50QS Specialty Fuses 60 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
24In Stock
Min.: 1
Mult.: 1
L50QS Specialty Fuses 80 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 175A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
8In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 175 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 30.94 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
4In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 450 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 50.8 mm x 113.49 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 50A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
23In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 50 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
17In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 70 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 275A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
4In Stock
Min.: 1
Mult.: 1

L50QS Specialty Fuses 275 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 700A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
1In Stock
Min.: 1
Mult.: 1
L50QS Specialty Fuses 700 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 63.5 mm x 157.15 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 40A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
7Expected 4/14/2026
Min.: 1
Mult.: 1

L50QS Specialty Fuses 40 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 25.4 mm x 92.08 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 325A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

L50QS Specialty Fuses 325 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 38.1 mm x 110.31 mm Without Indicator Bulk
Littelfuse Industrial & Electrical Fuses 800A 500VAC 500VDC FF L50QS POWR-SPEED
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

L50QS Specialty Fuses 800 A 500 VAC Fast Blow 500 VDC 200 kA at 500 VAC Round Body Fuses Stud Bolt Down 63.5 mm x 157.15 mm Without Indicator Bulk