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POWR-SPEED Circuit Breakers, Surge Protectors & Fuses

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Types of Circuit Breakers, Surge Protectors & Fuses

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Tradename = POWR-SPEED

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Part #

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

ESR3XLUB0315XI
Littelfuse
1: $584.46
2In Stock
1Expected 12/29/2026
New Product

Mfr. Part #
ESR3XLUB0315XI

Mouser Part #
576-ESR3XLUB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A

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Datasheet

2In Stock

1Expected 12/29/2026

$584.46

$479.91

$436.84

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

ESR3XLUB0450XI
Littelfuse
1: $614.31
3In Stock
New Product

Mfr. Part #
ESR3XLUB0450XI

Mouser Part #
576-ESR3XLUB0450XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 450A

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Datasheet

3In Stock

$614.31

$504.42

$459.15

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

ESR3XLDB0315XI
Littelfuse
1: $579.74
3In Stock
New Product

Mfr. Part #
ESR3XLDB0315XI

Mouser Part #
576-ESR3XLDB0315XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A

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Datasheet

3In Stock

$579.74

$476.03

$433.31

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

ESR3XLUB0500XI
Littelfuse
1: $608.50
3In Stock
New Product

Mfr. Part #
ESR3XLUB0500XI

Mouser Part #
576-ESR3XLUB0500XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A

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Datasheet

3In Stock

$608.50

$517.93

$464.38

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

ESR3XLUB0250XI
Littelfuse
1: $522.42
3In Stock
New Product

Mfr. Part #
ESR3XLUB0250XI

Mouser Part #
576-ESR3XLUB0250XI

New Product

Littelfuse

Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A

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Datasheet

3In Stock

$522.42

$428.96

$390.48

Quote

Min.: 1
Mult.: 1

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

L50QS090.T
Littelfuse
1: $56.86
62In Stock

Mfr. Part #
L50QS090.T

Mouser Part #
576-L50QS090.T

Littelfuse

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

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Datasheet

62In Stock

$56.86

$50.02

$40.68

$40.08

$36.87

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 600A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS600.X
Littelfuse
1: $350.89
16In Stock

Mfr. Part #
L70QS600.X

Mouser Part #
576-L70QS600.X

Littelfuse

Industrial & Electrical Fuses 600A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

16In Stock

$350.89

$298.22

Min.: 1
Mult.: 1

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

L50QS350.V
Littelfuse
1: $156.49
60In Stock

Mfr. Part #
L50QS350.V

Mouser Part #
576-L50QS350.V

Littelfuse

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

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Datasheet

60In Stock

$156.49

$133.21

$125.30

$104.11

$91.05

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 200A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS200.V
Littelfuse
1: $160.53
65In Stock

Mfr. Part #
L70QS200.V

Mouser Part #
576-L70QS200.V

Littelfuse

Industrial & Electrical Fuses 200A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

65In Stock

$160.53

$137.88

$118.87

$106.37

Min.: 1
Mult.: 1

Industrial & Electrical Fuses SQB SIZE 1XL DIN BL 630A

PSX1XLDB0630X
Littelfuse
1: $720.04
9In Stock

Mfr. Part #
PSX1XLDB0630X

Mouser Part #
576-PSX1XLDB0630X

Littelfuse

Industrial & Electrical Fuses SQB SIZE 1XL DIN BL 630A

Learn More

Datasheet

9In Stock

$720.04

$612.87

$528.20

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 450A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS450.X
Littelfuse
1: $361.19
5In Stock

Mfr. Part #
L70QS450.X

Mouser Part #
576-L70QS450.X

Littelfuse

Industrial & Electrical Fuses 450A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

5In Stock

$361.19

$320.29

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 175A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS175.V
Littelfuse
1: $186.60
2In Stock

Mfr. Part #
L70QS175.V

Mouser Part #
576-L70QS175.V

Littelfuse

Industrial & Electrical Fuses 175A 700VAC 700VDC FF L70QS POWR-SPEED

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Datasheet

2In Stock

$186.60

$151.12

$134.04

$117.12

Min.: 1
Mult.: 1

Industrial & Electrical Fuses SQB SIZE 1XL DIN BL 125A

PSX1XLDB0125X
Littelfuse
1: $427.99
13In Stock

Mfr. Part #
PSX1XLDB0125X

Mouser Part #
576-PSX1XLDB0125X

Littelfuse

Industrial & Electrical Fuses SQB SIZE 1XL DIN BL 125A

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Datasheet

13In Stock

$427.99

$351.50

$289.42

Quote

Min.: 1
Mult.: 1

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

L50QS150.V
Littelfuse
1: $98.12
59In Stock
130Expected 9/2/2026

Mfr. Part #
L50QS150.V

Mouser Part #
576-L50QS150.V

Littelfuse

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

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Datasheet

59In Stock

130Expected 9/2/2026

$98.12

$81.83

$75.51

$65.08

$58.73

Min.: 1
Mult.: 1

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

L50QS200.V
Littelfuse
1: $99.33
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

$99.33

$82.50

$77.11

$63.79

$58.73

Min.: 1
Mult.: 1

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

L50QS250.V
Littelfuse
1: $156.50
23In Stock

Mfr. Part #
L50QS250.V

Mouser Part #
576-L50QS250.V

Littelfuse

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

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Datasheet

23In Stock

$156.50

$133.21

$125.34

$98.92

$91.05

Min.: 1
Mult.: 1

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

L50QS300.V
Littelfuse
1: $146.43
27In Stock
33Expected 9/17/2026

Mfr. Part #
L50QS300.V

Mouser Part #
576-L50QS300.V

Littelfuse

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

Learn More

Datasheet

27In Stock

33Expected 9/17/2026

$146.43

$129.76

$119.64

$98.04

$91.05

Min.: 1
Mult.: 1

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

L50QS600.X
Littelfuse
1: $229.78
56In Stock

Mfr. Part #
L50QS600.X

Mouser Part #
576-L50QS600.X

Littelfuse

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

Learn More

Datasheet

56In Stock

$229.78

$191.50

$177.95

$153.09

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 70A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS070.V
Littelfuse
1: $131.52
106In Stock

Mfr. Part #
L70QS070.V

Mouser Part #
576-L70QS070.V

Littelfuse

Industrial & Electrical Fuses 70A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

106In Stock

$131.52

$109.07

$100.58

$86.43

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 150A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS150.V
Littelfuse
1: $185.37
18In Stock

Mfr. Part #
L70QS150.V

Mouser Part #
576-L70QS150.V

Littelfuse

Industrial & Electrical Fuses 150A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

18In Stock

$185.37

$154.68

$145.12

$117.12

Min.: 1
Mult.: 1

Industrial & Electrical Fuses 60A 700VAC 700VDC FF L70QS POWR-SPEED

L70QS060.V
Littelfuse
1: $103.78
25In Stock

Mfr. Part #
L70QS060.V

Mouser Part #
576-L70QS060.V

Littelfuse

Industrial & Electrical Fuses 60A 700VAC 700VDC FF L70QS POWR-SPEED

Learn More

Datasheet

25In Stock

$103.78

$86.50

$81.95

$65.67

$60.46

Min.: 1
Mult.: 1

Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 450A

PSX1XLFL0450X
Littelfuse
1: $671.67
6In Stock
12Expected 2/8/2027

Mfr. Part #
PSX1XLFL0450X

Mouser Part #
576-PSX1XLFL0450X

Littelfuse

Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 450A

Learn More

Datasheet

6In Stock

12Expected 2/8/2027

$671.67

$576.82

$489.73

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 1400A

PSX3XLDB1400X
Littelfuse
1: $1,153.19
3In Stock

Mfr. Part #
PSX3XLDB1400X

Mouser Part #
576-PSX3XLDB1400X

Littelfuse

Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 1400A

Learn More

Datasheet

3In Stock

$1,153.19

$1,045.49

$922.58

Min.: 1
Mult.: 1

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

L50QS050.T
Littelfuse
1: $53.49
7In Stock
57On Order

Mfr. Part #
L50QS050.T

Mouser Part #
576-L50QS050.T

Littelfuse

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

Learn More

Datasheet

7In Stock

57On Order

$53.49

$50.97

$45.12

$40.61

View

Min.: 1
Mult.: 1

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

L50QS080.T
Littelfuse
1: $70.57
11In Stock
12Expected 10/5/2026

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 10/5/2026

$70.57

$60.26

$57.24

$44.68

View

Min.: 1
Mult.: 1

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