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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Littelfuse Industrial & Electrical Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M
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11Factory Stock Available
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Semiconductor Fuses 125 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
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5Factory Stock Available
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Min.: 1
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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 450A 700VAC SIZE 30 POWER-SPEED FLUSH IN
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12Factory Stock Available
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Min.: 1
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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
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3Factory Stock Available
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Min.: 1
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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 POWR-SPEED SQB SIZE 30 US LONG BL 630A
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3Factory Stock Available
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Min.: 1
Mult.: 1

Semiconductor Fuses 630 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 700V SIZE 30 FLUSH 500A
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3Factory Stock Available
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Min.: 1
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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 SHORT BL 630A
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3Factory Stock Available
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Semiconductor Fuses 630 A Fast-Acting Fuses Knife Blade Class aR Fuses 30 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 900A
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3Factory Stock Available
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Min.: 3
Mult.: 3

Semiconductor Fuses 900 A Fast-Acting Fuses Knife Blade Class aR Fuses 31 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 630A 700VAC SIZE 32 POWER-SPEED FLUSH M
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6Factory Stock Available
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Min.: 1
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Semiconductor Fuses 630 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 32 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 800A 700VAC SIZE 32 POWER-SPEED FLUSH M
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12Factory Stock Available
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Min.: 3
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Semiconductor Fuses 800 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 32 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 1KV SIZE 32 SB 1400A
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13Factory Stock Available
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Min.: 1
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Semiconductor Fuses 1.4 kA Fast-Acting Fuses Knife Blade Class aR Fuses 32 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 32 US LONG BL 1500A
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7Factory Stock Available
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Min.: 1
Mult.: 1

Semiconductor Fuses 1.5 kA Fast-Acting Fuses Knife Blade Class aR Fuses 32 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 800A 700V SIZE 33 Flush End Mtrc Thred
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24Factory Stock Available
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Semiconductor Fuses 800 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 33 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 1100A 700VAC SIZE 33 POWER-SPEED FLUSH M
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75Factory Stock Available
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Min.: 3
Mult.: 3

Semiconductor Fuses 1.1 kA 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 33 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 1400A 700VAC SIZE 33 POWER-SPEED FLUSH M
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18Factory Stock Available
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Min.: 3
Mult.: 3

Semiconductor Fuses 1.4 kA 700 VAC Fast-Acting Fuses 500 VDC Quick Connect Class aR Fuses 33 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 1600A 700VAC SIZE 33 POWER-SPEED FLUSH M
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37Factory Stock Available
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Min.: 3
Mult.: 3

Semiconductor Fuses 1.6 kA 700 VAC Fast-Acting Fuses 500 VDC Quick Connect Class aR Fuses 33 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 2000A 700VAC SIZE 33 POWER-SPEED FLUSH M
Datasheet
15Factory Stock Available
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Min.: 3
Mult.: 3

Semiconductor Fuses 2 kA 700 VAC Fast-Acting Fuses 500 VDC Quick Connect Class aR Fuses 33 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US LONG BL 1250A
Datasheet
46Factory Stock Available
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Min.: 1
Mult.: 1

Semiconductor Fuses 1.25 kA Fast-Acting Fuses Knife Blade Class aR Fuses 33 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 50A 1000V SIZE 70 Flush End Mtrc Thred
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2Factory Stock Available
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Min.: 1
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Semiconductor Fuses 50 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End Mtrc Thred
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12Factory Stock Available
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Min.: 1
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Semiconductor Fuses 100 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 50A 1000V SIZE 70 Flush End In Thread
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10Factory Stock Available
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Semiconductor Fuses 50 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 63A 1000V SIZE 70 Flush End In Thread
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4Factory Stock Available
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Semiconductor Fuses 63 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End In Thread
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4Factory Stock Available
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Min.: 1
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Semiconductor Fuses 100 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 125A 1000V SIZE 70 Flush End In Thread
Datasheet
9Factory Stock Available
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Min.: 1
Mult.: 1

Semiconductor Fuses 125 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 160A 1000V SIZE 70 Flush End In Thread
Datasheet
2Factory Stock Available
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Min.: 1
Mult.: 1

Semiconductor Fuses 160 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 70 Visual Side Indicator Bulk PSR