High-Power Conversion

Littelfuse provides a wide portfolio of products for High-Power Conversion, including diodes, gate drivers, high-speed fuses, MOSFETs, and power modules. These products are broken down into four functions: rectifier, break chopper or PFC, inverter, and semiconductor protection.

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Industrial Automation
Circuit Breakers, Surge Protectors & Fuses
Industrial & Electrical Fuses

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Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A
Datasheet
18In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A Fast-Acting Fuses Knife Blade Class aR Fuses 70 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 630A 1250VAC SIZE 72 POWER-SPEED FLUSH M
Datasheet
4In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 630 A 1.3 kVAC Fast-Acting Fuses 1 kVDC Quick Connect Class aR Fuses 72 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 400A
Datasheet
2In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A Fast-Acting Fuses Knife Blade Class aR Fuses 32 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 200A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 200 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 280A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
3In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 280 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 700VAC SIZE 30 POWER-SPEED FLUSH M
Datasheet
9In Stock
Min.: 1
Mult.: 1

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 900V FAST BLOW 800A
Datasheet
3In Stock
3Expected 3/11/2027
Min.: 1
Mult.: 1
Semiconductor Fuses 800 A Fast-Acting Fuses Knife Blade Class aR Fuses 73 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 DIN 110MM 50A
Datasheet
31In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 50 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Blade / Bolt Class aR Fuses 70 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 900V FAST BLOW 350A
Datasheet
10In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 350 A Fast-Acting Fuses Knife Blade Class aR Fuses 70 Visual Indicator Bulk PSR


Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A
Datasheet
5In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 500 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Blade / Bolt Class aR Fuses 72 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 1000V SIZE 70 LONG BL 100A
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 100 A Fast-Acting Fuses Knife Blade Class aR Fuses 70 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 200A 700VAC SIZE 30 POWER-SPEED FLUSH M
Datasheet
3In Stock
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 80A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 80 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 250A 1000V SIZE 70 Flush End Mtrc Thred
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 250 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 200A 1000V SIZE 70 Flush End In Thread
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 200 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 POWR-SPEED SQB SIZE 70 US LONG BL 50A
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 50 A Fast-Acting Fuses Knife Blade Class aR Fuses 70 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 400A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
3In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 400 A 1.3 kVAC Fast-Acting Fuses 1 kVDC Quick Connect Class aR Fuses 71 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 700A 1250V SIZE 73 Flush End Mtrc Thred
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 700 A 1.3 kVAC Fast-Acting Fuses 1 kVDC 100 kA, 150 kA Threaded Class aR Fuses 73 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 700A 700V SIZE 31 Flush End Mtrc Thred
Datasheet
1In Stock
Min.: 1
Mult.: 1

Semiconductor Fuses 700 A 700 VAC Fast-Acting Fuses 600 VDC Quick Connect Class aR Fuses 31 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 900V FAST BLOW 700A
Datasheet
11On Order
Min.: 1
Mult.: 1

Semiconductor Fuses 700 A Fast-Acting Fuses Knife Blade Class aR Fuses 73 Visual Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses 350A 700V SIZE 31 Flush End Mtrc Thred
Datasheet
1Expected 12/14/2026
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 315A 1250VAC SIZE 71 POWER-SPEED FLUSH M
Datasheet
82Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 315 A 1.3 kVAC Fast-Acting Fuses 1 kVDC Quick Connect Class aR Fuses 71 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 200A
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 200 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 250A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 250 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 30 Visual Side Indicator Bulk PSR
Littelfuse Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 315A
Datasheet
3Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Semiconductor Fuses 315 A 700 VAC Fast-Acting Fuses 600 VDC 150 kA, 200 kA Blade / Bolt Class aR Fuses 30 Visual Side Indicator Bulk PSR