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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Qty. RoHS ECAD Model Series
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Voltage Rating DC
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Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 33 US SHRT BL 1800A
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24Factory 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 33 US SHRT BL 2000A
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24Factory 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 33 US SHORT BL 2250A
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20Factory 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 70 DIN 110MM 63A
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3Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 63 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 80A
Datasheet
6Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 80 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 100A
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3Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 100 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 125A
Datasheet
12Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 125 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 160A
Datasheet
14Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 160 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 200A
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5Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 200 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 250A
Datasheet
51Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 250 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 315A
Datasheet
33Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 315 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 400A
Datasheet
24Factory Stock Available
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Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 400 A 1.2 kVAC 900 VDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 100A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
8Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 100 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 125A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 125 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 160A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
2Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 160 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 50A 1000V SIZE 70 Flush End In Thread
Datasheet
10Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 50 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 125A 1000V SIZE 70 Flush End In Thread
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 125 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 160A 1000V SIZE 70 Flush End In Thread
Datasheet
10Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 160 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 250A 1000V SIZE 70 Flush End In Thread
Datasheet
22Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 250 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 280A 1000V SIZE 70 Flush End In Thread
Datasheet
1Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 280 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 315A 1000V SIZE 70 Flush End In Thread
Datasheet
5Factory Stock Available
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Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 315 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Stud Threaded Stud Fast Blow 70 Visual Side Indicator Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 63A
Datasheet
9Factory 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 70 US LONG BL 160A
Datasheet
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 Box
Littelfuse Specialty Fuses 900V FAST BLOW 350A
Datasheet
611Factory 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 71 DIN 110MM 200A
Datasheet
9Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 200 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Box