Industrial & Electrical Fuses

.hide-partial { max-height: none; } .show-more { display: none; }

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 24

Applied Filters:

Current Rating

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS090.T
Littelfuse
1: $61.860
62In Stock

Mfr. Part #
L50QS090.T

Mouser Part #
576-L50QS090.T

Littelfuse

Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

62In Stock

$61.860

$54.520

$44.381

$42.583

$38.776

Min.: 1
Mult.: 1

Semiconductor Fuses

90 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS600.X
Littelfuse
1: $220.003
75In Stock

Mfr. Part #
L50QS600.X

Mouser Part #
576-L50QS600.X

Littelfuse

Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

75In Stock

$220.003

$174.297

$166.556

$149.130

Min.: 1
Mult.: 1

Semiconductor Fuses

600 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS125.V
Littelfuse
1: $102.982
34In Stock

Mfr. Part #
L50QS125.V

Mouser Part #
576-L50QS125.V

Littelfuse

Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

34In Stock

$102.982

$85.544

$81.096

$67.087

$61.766

Min.: 1
Mult.: 1

Semiconductor Fuses

125 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS150.V
Littelfuse
1: $102.918
81In Stock

Mfr. Part #
L50QS150.V

Mouser Part #
576-L50QS150.V

Littelfuse

Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

81In Stock

$102.918

$85.849

$79.403

$67.087

$61.766

Min.: 1
Mult.: 1

Semiconductor Fuses

150 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS200.V
Littelfuse
1: $103.318
39In Stock

Mfr. Part #
L50QS200.V

Mouser Part #
576-L50QS200.V

Littelfuse

Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

39In Stock

$103.318

$85.818

$81.096

$67.087

$61.766

Min.: 1
Mult.: 1

Semiconductor Fuses

200 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS250.V
Littelfuse
1: $164.579
25In Stock

Mfr. Part #
L50QS250.V

Mouser Part #
576-L50QS250.V

Littelfuse

Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

25In Stock

$164.579

$142.725

$125.824

$104.033

$95.756

Min.: 1
Mult.: 1

Semiconductor Fuses

250 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS350.V
Littelfuse
1: $164.579
60In Stock

Mfr. Part #
L50QS350.V

Mouser Part #
576-L50QS350.V

Littelfuse

Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

60In Stock

$164.579

$140.096

$131.819

$109.491

$95.756

Min.: 1
Mult.: 1

Semiconductor Fuses

350 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS400.V
Littelfuse
1: $156.607
17In Stock

Mfr. Part #
L50QS400.V

Mouser Part #
576-L50QS400.V

Littelfuse

Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

17In Stock

$156.607

$132.944

$125.824

$102.024

View

Min.: 1
Mult.: 1

Semiconductor Fuses

400 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS500.X
Littelfuse
1: $234.969
10In Stock

Mfr. Part #
L50QS500.X

Mouser Part #
576-L50QS500.X

Littelfuse

Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

10In Stock

$234.969

$200.747

$183.036

$157.838

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS035.T
Littelfuse
1: $58.201
30In Stock
19Expected 7/31/2026

Mfr. Part #
L50QS035.T

Mouser Part #
576-L50QS035.T

Littelfuse

Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

30In Stock

19Expected 7/31/2026

$58.201

$50.008

$46.054

$42.709

View

Min.: 1
Mult.: 1

Semiconductor Fuses

35 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 50A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS050.T
Littelfuse
1: $56.234
13In Stock
10Expected 7/30/2026

Mfr. Part #
L50QS050.T

Mouser Part #
576-L50QS050.T

Littelfuse

Industrial & Electrical Fuses 50A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

13In Stock

10Expected 7/30/2026

$56.234

$47.147

$44.339

$42.709

View

Min.: 1
Mult.: 1

Semiconductor Fuses

50 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS060.T
Littelfuse
1: $67.424
12On Order

Mfr. Part #
L50QS060.T

Mouser Part #
576-L50QS060.T

Littelfuse

Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

12On Order

$67.424

$53.847

$50.450

$42.709

View

Min.: 1
Mult.: 1

Semiconductor Fuses

60 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS080.T
Littelfuse
1: $74.218
11In Stock
12Expected 9/3/2026

Mfr. Part #
L50QS080.T

Mouser Part #
576-L50QS080.T

Littelfuse

Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

11In Stock

12Expected 9/3/2026

$74.218

$66.004

$61.103

$46.990

View

Min.: 1
Mult.: 1

Semiconductor Fuses

80 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS450.X
Littelfuse
1: $249.997
4In Stock

Mfr. Part #
L50QS450.X

Mouser Part #
576-L50QS450.X

Littelfuse

Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

4In Stock

$249.997

$207.225

$191.040

$157.838

Min.: 1
Mult.: 1

Semiconductor Fuses

450 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 40A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS040.T
Littelfuse
1: $64.342
13In Stock

Mfr. Part #
L50QS040.T

Mouser Part #
576-L50QS040.T

Littelfuse

Industrial & Electrical Fuses 40A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

13In Stock

$64.342

$55.939

$51.596

$41.479

View

Min.: 1
Mult.: 1

Semiconductor Fuses

40 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS070.T
Littelfuse
1: $74.218
11In Stock

Mfr. Part #
L50QS070.T

Mouser Part #
576-L50QS070.T

Littelfuse

Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

11In Stock

$74.218

$63.985

$61.103

$46.990

View

Min.: 1
Mult.: 1

Semiconductor Fuses

70 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 225A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS225.V
Littelfuse
1: $156.628
13In Stock

Mfr. Part #
L50QS225.V

Mouser Part #
576-L50QS225.V

Littelfuse

Industrial & Electrical Fuses 225A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

13In Stock

$156.628

$140.096

$129.190

$102.393

$95.756

Min.: 1
Mult.: 1

Semiconductor Fuses

225 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS100.T
Littelfuse
1: $59.031
220Expected 8/13/2026

Mfr. Part #
L50QS100.T

Mouser Part #
576-L50QS100.T

Littelfuse

Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

220Expected 8/13/2026

$59.031

$52.227

$49.103

$43.256

View

Min.: 1
Mult.: 1

Semiconductor Fuses

100 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS300.V
Littelfuse
1: $157.754
60Expected 8/20/2026

Mfr. Part #
L50QS300.V

Mouser Part #
576-L50QS300.V

Littelfuse

Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

60Expected 8/20/2026

$157.754

$136.467

$125.824

$104.033

$95.756

Min.: 1
Mult.: 1

Semiconductor Fuses

300 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 175A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS175.V
Littelfuse
1: $106.031
10Expected 9/17/2026

Mfr. Part #
L50QS175.V

Mouser Part #
576-L50QS175.V

Littelfuse

Industrial & Electrical Fuses 175A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

10Expected 9/17/2026

$106.031

$87.921

$76.563

$67.087

$61.766

Min.: 1
Mult.: 1

Semiconductor Fuses

175 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 275A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS275.V
Littelfuse
1: $145.975
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
L50QS275.V

Mouser Part #
576-L50QS275.V

Littelfuse

Industrial & Electrical Fuses 275A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$145.975

$131.651

$123.027

$104.033

$95.756

Min.: 1
Mult.: 1

Semiconductor Fuses

275 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 325A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS325.V
Littelfuse
1: $153.442
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
L50QS325.V

Mouser Part #
576-L50QS325.V

Littelfuse

Industrial & Electrical Fuses 325A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$153.442

$135.721

$127.938

$121.765

$119.388

Min.: 1
Mult.: 1

Semiconductor Fuses

325 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 700A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS700.X
Littelfuse
1: $390.219
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
L50QS700.X

Mouser Part #
576-L50QS700.X

Littelfuse

Industrial & Electrical Fuses 700A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

$390.219

$323.353

Min.: 1
Mult.: 1

Semiconductor Fuses

700 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Industrial & Electrical Fuses 800A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS800.X
Littelfuse
1: $366.356
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
L50QS800.X

Mouser Part #
576-L50QS800.X

Littelfuse

Industrial & Electrical Fuses 800A 500VAC 500VDC FF L50QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$366.356

$323.342

$297.996

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

800 A

500 VAC

Fast-Acting Fuses

500 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L50QS

Customer Service Office

Company

Resources

Support

35 A
40 A
50 A
60 A
70 A
80 A
90 A
100 A
125 A
150 A
175 A
200 A
225 A
250 A
275 A
300 A
325 A
350 A
400 A
450 A