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
Product
Body Style
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Mounting Style
Termination Style
Fuse Type
Fuse Size/Group
Indicator Style
Packaging
Resistance
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 70 US LONG BL 125A
Datasheet
Non-Stocked Lead-Time 18 Weeks
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
Non-Stocked Lead-Time 15 Weeks
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 280A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 315A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box
Littelfuse Specialty Fuses 900V FAST BLOW 350A
Datasheet
Non-Stocked Lead-Time 18 Weeks
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 US LONG BL 400A
Datasheet
Non-Stocked Lead-Time 18 Weeks
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 71 DIN 110MM 160A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 71 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 250A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 71 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 280A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 280 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 350A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 350 A 1.3 kVAC 1 kVDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Box
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 500A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 500 A 1.2 kVAC 900 VDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 550A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 550 A 1.2 kVAC 900 VDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 DIN 110MM 630A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Fuses 630 A 1.1 kVAC 900 VDC 100 kA, 150 kA Screw Blade / Boltdown Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 200A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 200 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 250A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 250 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 280A 700V SIZE 71 Flush End Mtrc Thred
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 280 A 1.3 kVAC 1 kVDC Holder Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 350A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 350 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 450A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 450 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 315A 1250VAC SIZE 71 POWER-SPEED FLUSH I
Datasheet
Lead-Time 25 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 315 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 400A 1250VAC SIZE 71 POWER-SPEED FLUSH IN
Datasheet
Lead-Time 25 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 400 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses 450A 1250VAC SIZE 71 POWER-SPEED FLUSH I
Datasheet
Non-Stocked Lead-Time 25 Weeks
Min.: 1
Mult.: 1

PSR Specialty Fuses Square Body Fuses 450 A 1.3 kVAC 1 kVDC Snap In Quick Connect Fast Blow 71 Visual Side Indicator Bulk
Littelfuse Specialty Fuses POWR-SPEED SQB SIZE 71 US LONG BL 250A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 71 US LONG BL 280A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 71 US LONG BL 315A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 71 US LONG BL 400A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 3
Mult.: 3

PSR Specialty Fuses Square Body Blade Fuses Screw Knife Blade Fast Blow Visual Blown Fuse Box