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.

Results: 500
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Current Rating
Voltage Rating AC
Fuse Type
Voltage Rating DC
Interrupt Rating
Termination Style
Class
Fuse Size/Group
Indicator Style
Packaging
Series
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 250A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 315A
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 315 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 400A
Datasheet
10Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 500A
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 500 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 550A
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 550 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 40A
Datasheet
5Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 40 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 50A
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 50 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 100A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 100 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 160A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 160 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 250A
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 350A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 700V SIZE 30 FLUSH 500A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 500 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 350A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 700A
Datasheet
17Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

Semiconductor Fuses 700 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 800A
Datasheet
3Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

Semiconductor Fuses 800 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 350A
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 400A
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 800A
Datasheet
6Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

Semiconductor Fuses 800 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 400A 700V SIZE 31 Flush End Mtrc Thred
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 630A 700V SIZE 31 Flush End Mtrc Thred
Datasheet
27Factory Stock Available
More Info Available
Min.: 3
Mult.: 3

Semiconductor Fuses 630 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 315A 700V SIZE 31 Flush End In. Thred
Datasheet
1Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 315 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 350A 700V SIZE 31 Flush End In. Thred
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 200A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A Fast-Acting Fuses Knife Blade Class aR Fuses 31 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 250A
Datasheet
6Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A Fast-Acting Fuses Knife Blade Class aR Fuses 31 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A Fast-Acting Fuses Knife Blade Class aR Fuses 31 Visual Indicator Bulk PSR