Industrial & Electrical Fuses

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Part #

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A

PSR070UL0200Z
Littelfuse
1: $353.63
18In Stock

Mfr. Part No.
PSR070UL0200Z

Mouser Part No
576-PSR070UL0200Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A

Learn More

Datasheet

18In Stock

$353.63

$312.03

$302.41

Min.: 1
Mult.: 1

Semiconductor Fuses

200 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A

PSR072DL0500X
Littelfuse
1: $555.94
5In Stock

Mfr. Part No.
PSR072DL0500X

Mouser Part No
576-PSR072DL0500X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A

Learn More

Datasheet

5In Stock

$555.94

$438.12

$399.74

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

1.3 kVAC

Fast-Acting Fuses

1 kVDC

100 kA, 150 kA

Blade / Bolt

Class aR Fuses

Visual Side Indicator

Bulk

PSR

Industrial & Electrical Fuses 1000V SIZE 70 LONG BL 100A

PSR070UL0100Z
Littelfuse
1: $397.56
1In Stock

Mfr. Part No.
PSR070UL0100Z

Mouser Part No
576-PSR070UL0100Z

Littelfuse

Industrial & Electrical Fuses 1000V SIZE 70 LONG BL 100A

Learn More

Datasheet

1In Stock

$397.56

$333.53

$307.35

Min.: 1
Mult.: 1

Semiconductor Fuses

100 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 50A

PSR070UL0050Z
Littelfuse
1: $387.21
1In Stock

Mfr. Part No.
PSR070UL0050Z

Mouser Part No
576-PSR070UL0050Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 50A

Learn More

Datasheet

1In Stock

$387.21

$314.65

$289.94

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

50 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses 900V FAST BLOW 700A

PSR073UL0700X
Littelfuse
1: $532.38
11On Order

Mfr. Part No.
PSR073UL0700X

Mouser Part No
576-PSR073UL0700X

Littelfuse

Industrial & Electrical Fuses 900V FAST BLOW 700A

Learn More

Datasheet

11On Order

$532.38

$505.86

$503.06

Min.: 1
Mult.: 1

Semiconductor Fuses

700 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 250A

PSR070UL0250Z
Littelfuse
1: $428.04
3Expected 21/12/2026

Mfr. Part No.
PSR070UL0250Z

Mouser Part No
576-PSR070UL0250Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 250A

Learn More

Datasheet

3Expected 21/12/2026

$428.04

$347.15

$309.21

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

250 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 100A

PSR030UL0100Z
Littelfuse
1: $285.69
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR030UL0100Z

Mouser Part No
576-PSR030UL0100Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 100A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$285.69

$231.76

$201.37

$187.50

Min.: 1
Mult.: 1

Semiconductor Fuses

100 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 250A

PSR030UL0250Z
Littelfuse
1: $239.73
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR030UL0250Z

Mouser Part No
576-PSR030UL0250Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 250A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$239.73

$216.34

$205.86

$194.70

Min.: 1
Mult.: 1

Semiconductor Fuses

250 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 500A

PSR030UL0500Z
Littelfuse
1: $257.17
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR030UL0500Z

Mouser Part No
576-PSR030UL0500Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 500A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$257.17

$234.71

$225.13

$214.11

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 125A

PSR030US0125Z
Littelfuse
1: $275.20
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR030US0125Z

Mouser Part No
576-PSR030US0125Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 125A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$275.20

$223.27

$205.79

$180.00

Min.: 1
Mult.: 1

Semiconductor Fuses

125 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 500A

PSR031DL0500Z
Littelfuse
1: $282.56
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031DL0500Z

Mouser Part No
576-PSR031DL0500Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 500A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$282.56

$264.85

$254.77

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 POWR-SPEED SQB SIZE 31 DIN 80MM 700A

PSR031DS0700Z
Littelfuse
3: $325.06
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR031DS0700Z

Mouser Part No
576-PSR031DS0700Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 700A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$325.06

$304.00

$293.32

Quote

Min.: 3
Mult.: 3

Semiconductor Fuses

700 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 31 US LONG BL 200A

PSR031UL0200Z
Littelfuse
1: $311.66
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031UL0200Z

Mouser Part No
576-PSR031UL0200Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 200A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$311.66

$242.19

$221.52

$210.10

Min.: 1
Mult.: 1

Semiconductor Fuses

200 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A

PSR031UL0400Z
Littelfuse
1: $288.92
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031UL0400Z

Mouser Part No
576-PSR031UL0400Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$288.92

$243.44

$226.73

$214.23

Min.: 1
Mult.: 1

Semiconductor Fuses

400 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 500A

PSR031UL0500Z
Littelfuse
1: $312.34
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031UL0500Z

Mouser Part No
576-PSR031UL0500Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 500A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$312.34

$248.57

$238.64

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 700A

PSR031UL0700Z
Littelfuse
1: $408.44
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR031UL0700Z

Mouser Part No
576-PSR031UL0700Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 700A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$408.44

$312.12

$291.45

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

700 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 250A

PSR031US0250Z
Littelfuse
1: $306.41
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
PSR031US0250Z

Mouser Part No
576-PSR031US0250Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 250A

Learn More

Datasheet

Non-Stocked Lead-Time 15 Weeks

$306.41

$248.55

$218.96

$202.50

Min.: 1
Mult.: 1

Semiconductor Fuses

250 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 400A

PSR031US0400Z
Littelfuse
1: $256.75
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031US0400Z

Mouser Part No
576-PSR031US0400Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 400A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$256.75

$239.74

$231.45

$220.43

Min.: 1
Mult.: 1

Semiconductor Fuses

400 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A

PSR031US0500Z
Littelfuse
1: $326.91
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
PSR031US0500Z

Mouser Part No
576-PSR031US0500Z

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

$326.91

$265.23

$244.43

$234.16

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 700A

PSR032DL0700X
Littelfuse
1: $342.02
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032DL0700X

Mouser Part No
576-PSR032DL0700X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 700A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$342.02

$300.74

$289.64

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

700 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 32 US LONG BL 630A

PSR032UL0630X
Littelfuse
1: $323.38
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032UL0630X

Mouser Part No
576-PSR032UL0630X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 630A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$323.38

$292.79

$277.29

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

630 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1000A

PSR032UL1000X
Littelfuse
1: $438.06
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032UL1000X

Mouser Part No
576-PSR032UL1000X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1000A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$438.06

$362.93

$334.45

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

1 kA

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 450A

PSR032US0450X
Littelfuse
1: $321.87
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032US0450X

Mouser Part No
576-PSR032US0450X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 450A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$321.87

$269.25

$257.92

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

450 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 500A

PSR032US0500X
Littelfuse
1: $305.39
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032US0500X

Mouser Part No
576-PSR032US0500X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 500A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$305.39

$279.84

$265.34

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

500 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 800A

PSR032US0800X
Littelfuse
1: $430.15
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
PSR032US0800X

Mouser Part No
576-PSR032US0800X

Littelfuse

Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 800A

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$430.15

$326.92

$305.27

Quote

Min.: 1
Mult.: 1

Semiconductor Fuses

800 A

Fast-Acting Fuses

Knife Blade

Class aR Fuses

Visual Indicator

Bulk

PSR

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