Industrial & Electrical Fuses

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (DKK) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Current Rating	Voltage Rating AC	Fuse Type	Voltage Rating DC	Interrupt Rating	Termination Style	Class	Fuse Size/Group	Indicator Style	Packaging	Series
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 250A PSR031UL0250Z Littelfuse 1: 1.827,77 kr. 3Factory Stock Available	Mfr. Part No. PSR031UL0250Z Mouser Part No 576-PSR031UL0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 250A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	1.827,77 kr. 1.548,62 kr. 1.442,17 kr. 1.368,84 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A PSR031UL0400Z Littelfuse 1: 1.824,49 kr. 3Factory Stock Available	Mfr. Part No. PSR031UL0400Z Mouser Part No 576-PSR031UL0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	1.824,49 kr. 1.548,85 kr. 1.441,79 kr. 1.361,52 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 800A PSR031UL0800Z Littelfuse 3: 2.138,48 kr. 12Factory Stock Available	Mfr. Part No. PSR031UL0800Z Mouser Part No 576-PSR031UL0800Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 800A Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	2.138,48 kr. 1.986,60 kr. 1.917,59 kr. Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	800 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 900A PSR031UL0900Z Littelfuse 3: 2.816,75 kr. 3Factory Stock Available	Mfr. Part No. PSR031UL0900Z Mouser Part No 576-PSR031UL0900Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 900A	Datasheet	3Factory Stock Available More Info Available	2.816,75 kr. 2.312,90 kr. 2.104,76 kr.	Min.: 3 Mult.: 3	Semiconductor Fuses	900 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 400A PSR031US0400Z Littelfuse 1: 1.647,24 kr. 4Factory Stock Available	Mfr. Part No. PSR031US0400Z Mouser Part No 576-PSR031US0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 400A Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	1.647,24 kr. 1.519,83 kr. 1.462,23 kr. 1.391,51 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A PSR031US0500Z Littelfuse 1: 2.097,68 kr. 6Factory Stock Available	Mfr. Part No. PSR031US0500Z Mouser Part No 576-PSR031US0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	2.097,68 kr. 1.701,63 kr. 1.506,55 kr. 1.502,29 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 550A PSR031US0550Z Littelfuse 1: 1.755,64 kr. 6Factory Stock Available	Mfr. Part No. PSR031US0550Z Mouser Part No 576-PSR031US0550Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 550A Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	1.755,64 kr. 1.630,46 kr. 1.568,61 kr. 1.564,66 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	550 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 800A PSR031US0800Z Littelfuse 3: 2.484,25 kr. 6Factory Stock Available	Mfr. Part No. PSR031US0800Z Mouser Part No 576-PSR031US0800Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 800A Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	2.484,25 kr. 1.902,82 kr. 1.777,64 kr. Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	800 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	31	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 400A PSR032DL0400X Littelfuse 1: 2.359,37 kr. 1Factory Stock Available	Mfr. Part No. PSR032DL0400X Mouser Part No 576-PSR032DL0400X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 400A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	2.359,37 kr. 1.954,97 kr. 1.801,81 kr. 1.710,88 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 500A PSR032DL0500X Littelfuse 1: 2.359,37 kr. 2Factory Stock Available	Mfr. Part No. PSR032DL0500X Mouser Part No 576-PSR032DL0500X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 500A Learn More about Littelfuse psr fuses	Datasheet	2Factory Stock Available More Info Available	2.359,37 kr. 1.954,97 kr. 1.701,10 kr. 1.696,48 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 550A PSR032DL0550X Littelfuse 1: 2.094,02 kr. 1Factory Stock Available	Mfr. Part No. PSR032DL0550X Mouser Part No 576-PSR032DL0550X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 550A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	2.094,02 kr. 1.928,04 kr. 1.842,55 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	550 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 630A PSR032DS0630X Littelfuse 1: 2.228,90 kr. 1Factory Stock Available	Mfr. Part No. PSR032DS0630X Mouser Part No 576-PSR032DS0630X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 630A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	2.228,90 kr. 1.753,10 kr. 1.641,50 kr. 1.637,25 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 700A PSR032DS0700X Littelfuse 1: 2.228,90 kr. 10Factory Stock Available	Mfr. Part No. PSR032DS0700X Mouser Part No 576-PSR032DS0700X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 700A Learn More about Littelfuse psr fuses	Datasheet	10Factory Stock Available More Info Available	2.228,90 kr. 1.744,45 kr. 1.615,54 kr. 1.610,91 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	700 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 800A PSR032DS0800X Littelfuse 1: 2.369,97 kr. 3Factory Stock Available	Mfr. Part No. PSR032DS0800X Mouser Part No 576-PSR032DS0800X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 800A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	2.369,97 kr. 2.213,23 kr. 2.127,67 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	800 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 1000A PSR032DS1000X Littelfuse 1: 2.370,42 kr. 3Factory Stock Available	Mfr. Part No. PSR032DS1000X Mouser Part No 576-PSR032DS1000X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 1000A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	2.370,42 kr. 2.213,68 kr. 2.128,11 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1 kA	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 1100A PSR032DS1100X Littelfuse 1: 3.380,80 kr. 4Factory Stock Available	Mfr. Part No. PSR032DS1100X Mouser Part No 576-PSR032DS1100X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 80MM 1100A Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	3.380,80 kr. 2.801,45 kr. 2.581,76 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	1.1 kA	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 400A 700V SIZE 32 Flush End Mtrc Thred PSR032FL0400Z Littelfuse 1: 1.674,55 kr. 3Factory Stock Available	Mfr. Part No. PSR032FL0400Z Mouser Part No 576-PSR032FL0400Z	Littelfuse	Industrial & Electrical Fuses 400A 700V SIZE 32 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	1.674,55 kr. 1.583,01 kr. 1.514,08 kr. 1.457,01 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 450A 700V SIZE 32 Flush End Mtrc Thred PSR032FL0450Z Littelfuse 1: 1.674,55 kr. 30Factory Stock Available	Mfr. Part No. PSR032FL0450Z Mouser Part No 576-PSR032FL0450Z	Littelfuse	Industrial & Electrical Fuses 450A 700V SIZE 32 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	30Factory Stock Available More Info Available	1.674,55 kr. 1.583,01 kr. 1.514,08 kr. 1.457,01 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 500A 700V SIZE 32 Flush End Mtrc Thred PSR032FL0500Z Littelfuse 1: 1.674,55 kr. 3Factory Stock Available	Mfr. Part No. PSR032FL0500Z Mouser Part No 576-PSR032FL0500Z	Littelfuse	Industrial & Electrical Fuses 500A 700V SIZE 32 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	1.674,55 kr. 1.583,01 kr. 1.514,08 kr. 1.457,01 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 630A 700VAC SIZE 32 POWER-SPEED FLUSH M PSR032FL0630Z Littelfuse 1: 2.060,08 kr. 6Factory Stock Available	Mfr. Part No. PSR032FL0630Z Mouser Part No 576-PSR032FL0630Z	Littelfuse	Industrial & Electrical Fuses 630A 700VAC SIZE 32 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	2.060,08 kr. 1.671,49 kr. 1.540,42 kr. 1.297,07 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 800A 700VAC SIZE 32 POWER-SPEED FLUSH M PSR032FL0800Z Littelfuse 3: 2.480,23 kr. 12Factory Stock Available	Mfr. Part No. PSR032FL0800Z Mouser Part No 576-PSR032FL0800Z	Littelfuse	Industrial & Electrical Fuses 800A 700VAC SIZE 32 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	2.480,23 kr. 2.054,78 kr. 1.893,72 kr.	Min.: 3 Mult.: 3	Semiconductor Fuses	800 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 125A 700VAC SIZE 32 POWER-SPEED FLUSH IN PSR032FS0630Z Littelfuse 1: 2.060,08 kr. 15Factory Stock Available	Mfr. Part No. PSR032FS0630Z Mouser Part No 576-PSR032FS0630Z	Littelfuse	Industrial & Electrical Fuses 125A 700VAC SIZE 32 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	15Factory Stock Available More Info Available	2.060,08 kr. 1.671,49 kr. 1.540,42 kr. 1.297,07 kr.	Min.: 1 Mult.: 1	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	32	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 900A PSR032UL0900X Littelfuse 1: 3.003,69 kr. 1Factory Stock Available	Mfr. Part No. PSR032UL0900X Mouser Part No 576-PSR032UL0900X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 900A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	3.003,69 kr. 2.263,14 kr. 2.113,05 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	900 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1000A PSR032UL1000X Littelfuse 1: 2.889,26 kr. 4Factory Stock Available	Mfr. Part No. PSR032UL1000X Mouser Part No 576-PSR032UL1000X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1000A Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	2.889,26 kr. 2.393,91 kr. 2.053,07 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1 kA		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1100A PSR032UL1100X Littelfuse 1: 3.079,79 kr. 7Factory Stock Available	Mfr. Part No. PSR032UL1100X Mouser Part No 576-PSR032UL1100X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1100A Learn More about Littelfuse psr fuses	Datasheet	7Factory Stock Available More Info Available	3.079,79 kr. 2.868,00 kr. 2.779,52 kr. Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1.1 kA		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR