PSR High-Speed Square Body Fuses

Littelfuse PSR Series High-Speed Square Body Fuses are specially designed for the protection of power semiconductor devices. The fuses from Littelfuse combine extreme current limitation benefits with balanced performance levels to meet the precise requirements for protecting sensitive power electronics devices. These devices include diodes, triacs, IGBTs, SCRs, MOSFETs, and other solid-state devices that are typically designed for power conversion and power conditioning equipment.

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Voltage Rating DC
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Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US LONG BL 800A
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12Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US LONG BL 900A
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6Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 200A
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12Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 315A
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17Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 350A
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12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A
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23Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 550A
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 800A
Datasheet
9Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 31 US SHORT BL 900A
Datasheet
12Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 110MM 400A
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27Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 400 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 110MM 450A
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21Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 450 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 110MM 550A
Datasheet
1Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 550 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 110MM 900A
Datasheet
4Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 900 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 32 DIN 110MM 1500A
Datasheet
11Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 1.5 kA 500 VAC 450 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 400A
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 400 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 450A
Datasheet
29Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 450 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 630A
Datasheet
15Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 630 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 700A
Datasheet
2Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 700 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 800A
Datasheet
2Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 800 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 900A
Datasheet
26Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 900 A 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 1000A
Datasheet
2Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 1 kA 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB Size 32 DIN 80MM 1100A
Datasheet
4Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 1.1 kA 700 VAC 600 VDC 150 kA, 200 kA Screw Blade / Boltdown Fast Blow 32 Visual Side Indicator Box
Littelfuse Specialty Fuses 450A 700V SIZE 32 Flush End Mtrc Thred
Datasheet
30Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 450 A 700 VAC 600 VDC Holder Quick Connect Fast Blow 32 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 500A 700V SIZE 32 Flush End Mtrc Thred
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 500 A 700 VAC 600 VDC Holder Quick Connect Fast Blow 32 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 550A 700V SIZE 32 Flush End Mtrc Thred
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 550 A 700 VAC 600 VDC Holder Quick Connect Fast Blow 32 Visual Side Indicator Bulk