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 AC
Fuse Type
Voltage Rating DC
Interrupt Rating
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Class
Fuse Size/Group
Indicator Style
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Series
Littelfuse Industrial & Electrical Fuses 160A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
7Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 160 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 200A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
5Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 315A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 315 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 350A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 400A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 450A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 450 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 500A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 500 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 550A 700VAC SIZE 30 POWER-SPEED FLUSH IN
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 550 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 40A
Datasheet
Non-Stocked Lead-Time 18 Weeks
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 LONG BL 50A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 LONG BL 63A
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 63 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 80A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 80 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 100A
Datasheet
4Factory 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 LONG BL 125A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 125 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 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 LONG BL 200A
Datasheet
12Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 200 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 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 350A
Datasheet
Non-Stocked Lead-Time 15 Weeks
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 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 450A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 450 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 LONG BL 630A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 630 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR