Industrial & Electrical Fuses

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Part #

Industrial & Electrical Fuses 700A 700V SIZE 31 Flush End Mtrc Thred

PSR031FL0700Z
Littelfuse
1: $386.770
1In Stock

Mfr. Part #
PSR031FL0700Z

Mouser Part #
576-PSR031FL0700Z

Littelfuse

Industrial & Electrical Fuses 700A 700V SIZE 31 Flush End Mtrc Thred

Learn More

Datasheet

1In Stock

$386.770

$311.921

$289.068

Min.: 1
Mult.: 1

Semiconductor Fuses

700 A

700 VAC

Fast-Acting Fuses

600 VDC

Quick Connect

Class aR Fuses

Visual Side Indicator

Bulk

PSR

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

L50QS125.V
Littelfuse
1: $100.762
55Expected 9/2/2026

Mfr. Part #
L50QS125.V

Mouser Part #
576-L50QS125.V

Littelfuse

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

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Datasheet

55Expected 9/2/2026

$100.762

$83.683

$81.096

$66.320

$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 500A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS500.X
Littelfuse
1: $234.580
14On Order

Mfr. Part #
L50QS500.X

Mouser Part #
576-L50QS500.X

Littelfuse

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

Learn More

Datasheet

14On Order

$234.580

$195.656

$179.807

$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 300A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS300.X
Littelfuse
1: $278.908
10Expected 8/26/2026

Mfr. Part #
L70QS300.X

Mouser Part #
576-L70QS300.X

Littelfuse

Industrial & Electrical Fuses 300A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

10Expected 8/26/2026

$278.908

$231.193

$212.084

$180.439

Min.: 1
Mult.: 1

Semiconductor Fuses

300 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

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

L50QS035.T
Littelfuse
1: $64.174
119On Order

Mfr. Part #
L50QS035.T

Mouser Part #
576-L50QS035.T

Littelfuse

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

Learn More

Datasheet

119On Order

$64.174

$54.046

$49.829

$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 60A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS060.T
Littelfuse
1: $67.424
27Expected 10/29/2026

Mfr. Part #
L50QS060.T

Mouser Part #
576-L50QS060.T

Littelfuse

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

Learn More

Datasheet

27Expected 10/29/2026

$67.424

$53.373

$50.313

$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 175A 500VAC 500VDC FF L50QS POWR-SPEED

L50QS175.V
Littelfuse
1: $106.021
10Expected 9/3/2026

Mfr. Part #
L50QS175.V

Mouser Part #
576-L50QS175.V

Littelfuse

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

Learn More

Datasheet

10Expected 9/3/2026

$106.021

$87.921

$80.023

$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 350A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS350.X
Littelfuse
1: $245.843
6Expected 9/17/2026

Mfr. Part #
L70QS350.X

Mouser Part #
576-L70QS350.X

Littelfuse

Industrial & Electrical Fuses 350A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

6Expected 9/17/2026

$245.843

$223.000

$206.058

$170.227

Min.: 1
Mult.: 1

Semiconductor Fuses

350 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

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

L50QS040.T
Littelfuse
1: $61.545
16Expected 11/13/2026

Mfr. Part #
L50QS040.T

Mouser Part #
576-L50QS040.T

Littelfuse

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

Learn More

Datasheet

16Expected 11/13/2026

$61.545

$52.395

$47.621

$41.395

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 40A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS040.V
Littelfuse
1: $98.228
9Expected 10/5/2026

Mfr. Part #
L70QS040.V

Mouser Part #
576-L70QS040.V

Littelfuse

Industrial & Electrical Fuses 40A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

9Expected 10/5/2026

$98.228

$87.963

$82.253

$69.065

$63.585

Min.: 1
Mult.: 1

Semiconductor Fuses

40 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

Industrial & Electrical Fuses 350A 700V SIZE 31 Flush End Mtrc Thred

PSR031FL0350Z
Littelfuse
1: $324.562
1Expected 12/14/2026

Mfr. Part #
PSR031FL0350Z

Mouser Part #
576-PSR031FL0350Z

Littelfuse

Industrial & Electrical Fuses 350A 700V SIZE 31 Flush End Mtrc Thred

Learn More

Datasheet

1Expected 12/14/2026

$324.562

$255.718

$235.642

$216.638

Min.: 1
Mult.: 1

Semiconductor Fuses

350 A

700 VAC

Fast-Acting Fuses

600 VDC

Quick Connect

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH M

PSR030FL0250Z
Littelfuse
1: $207.435
Non-Stocked Lead-Time 18 Weeks

Mfr. Part #
PSR030FL0250Z

Mouser Part #
576-PSR030FL0250Z

Littelfuse

Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH M

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$207.435

$181.332

$180.533

$161.477

Min.: 1
Mult.: 1

Semiconductor Fuses

250 A

700 VAC

Fast-Acting Fuses

600 VDC

Quick Connect

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 DIN 80MM 500A

PSR033DS0500X
Littelfuse
1: $488.373
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
PSR033DS0500X

Mouser Part #
576-PSR033DS0500X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 DIN 80MM 500A

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

$488.373

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

700 VAC

Fast-Acting Fuses

600 VDC

150 kA, 200 kA

Blade / Bolt

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses 315A 1250VAC SIZE 71 POWER-SPEED FLUSH M

PSR071FL0315Z
Littelfuse
1: $429.163
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
PSR071FL0315Z

Mouser Part #
576-PSR071FL0315Z

Littelfuse

Industrial & Electrical Fuses 315A 1250VAC SIZE 71 POWER-SPEED FLUSH M

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

$429.163

$348.046

$327.707

Min.: 1
Mult.: 1

Semiconductor Fuses

315 A

1.3 kVAC

Fast-Acting Fuses

1 kVDC

Quick Connect

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 73 US LONG BL 315A

PSR073UL0315X
Littelfuse
1: $547.247
Non-Stocked Lead-Time 11 Weeks

Mfr. Part #
PSR073UL0315X

Mouser Part #
576-PSR073UL0315X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 73 US LONG BL 315A

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

$547.247

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

315 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

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

L50QS275.V
Littelfuse
1: $151.811
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

$151.811

$134.627

$125.519

$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: $156.754
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

$156.754

$138.644

$131.850

$125.141

View

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: $403.513
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

$403.513

$342.746

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: $391.513
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

$391.513

$334.343

$310.932

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

Industrial & Electrical Fuses 90A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS090.V
Littelfuse
1: $142.746
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
L70QS090.V

Mouser Part #
576-L70QS090.V

Littelfuse

Industrial & Electrical Fuses 90A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$142.746

$117.947

$110.648

$92.717

$85.355

Min.: 1
Mult.: 1

Semiconductor Fuses

90 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

Industrial & Electrical Fuses 225A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS225.X
Littelfuse
1: $247.999
Lead-Time 15 Weeks

Mfr. Part #
L70QS225.X

Mouser Part #
576-L70QS225.X

Littelfuse

Industrial & Electrical Fuses 225A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

Lead-Time 15 Weeks

$247.999

$235.831

$233.791

Min.: 1
Mult.: 1

Semiconductor Fuses

225 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

Industrial & Electrical Fuses 700A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS700.X
Littelfuse
1: $493.884
Lead-Time 22 Weeks

Mfr. Part #
L70QS700.X

Mouser Part #
576-L70QS700.X

Littelfuse

Industrial & Electrical Fuses 700A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

Lead-Time 22 Weeks

$493.884

$470.516

$461.292

Min.: 1
Mult.: 1

Semiconductor Fuses

700 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

Industrial & Electrical Fuses 800A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS800.X
Littelfuse
1: $515.255
Non-Stocked Lead-Time 37 Weeks

Mfr. Part #
L70QS800.X

Mouser Part #
576-L70QS800.X

Littelfuse

Industrial & Electrical Fuses 800A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

Non-Stocked Lead-Time 37 Weeks

$515.255

Min.: 1
Mult.: 1

Semiconductor Fuses

800 A

700 VAC

Fast-Acting Fuses

700 VDC

200 kA

Bolt Down

Class aR Fuses

Without Indicator

Bulk

L70QS

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 40A

PSR030DL0040Z
Littelfuse
1: $289.404
Non-Stocked Lead-Time 21 Weeks

Mfr. Part #
PSR030DL0040Z

Mouser Part #
576-PSR030DL0040Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 40A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$289.404

$228.848

$216.480

$182.268

Min.: 1
Mult.: 1

Semiconductor Fuses

40 A

700 VAC

Fast-Acting Fuses

600 VDC

150 kA, 200 kA

Blade / Bolt

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 50A

PSR030DL0050Z
Littelfuse
1: $242.604
Non-Stocked Lead-Time 21 Weeks

Mfr. Part #
PSR030DL0050Z

Mouser Part #
576-PSR030DL0050Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 50A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$242.604

$242.593

$223.968

Min.: 1
Mult.: 1

Semiconductor Fuses

50 A

700 VAC

Fast-Acting Fuses

600 VDC

150 kA, 200 kA

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Customer Service Office

Company

Resources

Support

35 A
40 A
50 A
60 A
63 A
70 A
80 A
90 A
100 A
125 A
150 A
160 A
175 A
200 A
225 A
250 A
275 A
280 A
300 A
315 A