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 (EUR) 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 1KV SIZE 32 SB 1400A PSR032UL1400X Littelfuse 1: 471,98 € 13Factory Stock Available	Mfr. Part No. PSR032UL1400X Mouser Part No 576-PSR032UL1400X	Littelfuse	Industrial & Electrical Fuses 1KV SIZE 32 SB 1400A	Datasheet	13Factory Stock Available More Info Available	471,98 € 387,55 € 352,68 €	Min.: 1 Mult.: 1	Semiconductor Fuses	1.4 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 1500A PSR032UL1500X Littelfuse 1: 479,63 € 7Factory Stock Available	Mfr. Part No. PSR032UL1500X Mouser Part No 576-PSR032UL1500X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 32 US LONG BL 1500A	Datasheet	7Factory Stock Available More Info Available	479,63 € 369,96 € 344,34 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1.5 kA		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 400A PSR032US0400X Littelfuse 1: 264,81 € 9Factory Stock Available	Mfr. Part No. PSR032US0400X Mouser Part No 576-PSR032US0400X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 400A Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	264,81 € 245,97 € 236,27 € 235,68 €	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses 450A 700V SIZE 33 Flush End Mtrc Thred PSR033FL0450Z Littelfuse 3: 340,68 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR033FL0450Z Mouser Part No 576-PSR033FL0450Z	Littelfuse	Industrial & Electrical Fuses 450A 700V SIZE 33 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	340,68 € 317,56 € 311,47 € Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	450 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 630A 700V SIZE 33 Flush End Mtrc Thred PSR033FL0630Z Littelfuse 3: 340,68 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR033FL0630Z Mouser Part No 576-PSR033FL0630Z	Littelfuse	Industrial & Electrical Fuses 630A 700V SIZE 33 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	340,68 € 317,56 € 311,47 € Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 700A 700V SIZE 33 Flush End Mtrc Thred PSR033FL0700Z Littelfuse 3: 340,68 € 30Factory Stock Available	Mfr. Part No. PSR033FL0700Z Mouser Part No 576-PSR033FL0700Z	Littelfuse	Industrial & Electrical Fuses 700A 700V SIZE 33 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	30Factory Stock Available More Info Available	340,68 € 317,56 € 311,47 € Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	700 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 800A 700V SIZE 33 Flush End Mtrc Thred PSR033FL0800Z Littelfuse 1: 424,36 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR033FL0800Z Mouser Part No 576-PSR033FL0800Z	Littelfuse	Industrial & Electrical Fuses 800A 700V SIZE 33 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	424,36 € 353,12 € 325,36 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	800 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 900A 700V SIZE 33 Flush End Mtrc Thred PSR033FL0900Z Littelfuse 3: 403,92 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR033FL0900Z Mouser Part No 576-PSR033FL0900Z	Littelfuse	Industrial & Electrical Fuses 900A 700V SIZE 33 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	403,92 € 345,19 € 324,46 € Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	900 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 1100A 700VAC SIZE 33 POWER-SPEED FLUSH M PSR033FL1100Z Littelfuse 3: 453,19 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR033FL1100Z Mouser Part No 576-PSR033FL1100Z	Littelfuse	Industrial & Electrical Fuses 1100A 700VAC SIZE 33 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	453,19 € 375,53 € 346,08 €	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
Industrial & Electrical Fuses 1250A 700VAC SIZE 33 POWER-SPEED FLUSH M PSR033FL1250Z Littelfuse 1: 461,28 € 6Factory Stock Available	Mfr. Part No. PSR033FL1250Z Mouser Part No 576-PSR033FL1250Z	Littelfuse	Industrial & Electrical Fuses 1250A 700VAC SIZE 33 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	461,28 € 379,88 € 339,48 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1.25 kA	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 1400A 700VAC SIZE 33 POWER-SPEED FLUSH M PSR033FL1400Z Littelfuse 3: 561,20 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR033FL1400Z Mouser Part No 576-PSR033FL1400Z	Littelfuse	Industrial & Electrical Fuses 1400A 700VAC SIZE 33 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	561,20 € 480,56 € 424,07 €	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
Industrial & Electrical Fuses 1600A 700VAC SIZE 33 POWER-SPEED FLUSH M PSR033FL1600Z Littelfuse 3: 561,20 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR033FL1600Z Mouser Part No 576-PSR033FL1600Z	Littelfuse	Industrial & Electrical Fuses 1600A 700VAC SIZE 33 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	561,20 € 480,56 € 424,07 €	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
Industrial & Electrical Fuses 630A 700V SIZE 33 Flush End In. Thred PSR033FS0630Z Littelfuse 3: 415,43 € Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. PSR033FS0630Z Mouser Part No 576-PSR033FS0630Z	Littelfuse	Industrial & Electrical Fuses 630A 700V SIZE 33 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 25 Weeks	415,43 € 344,23 € 317,25 €	Min.: 3 Mult.: 3	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 800A 700V SIZE 33 Flush End In. Thred PSR033FS0800Z Littelfuse 3: 415,43 € Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. PSR033FS0800Z Mouser Part No 576-PSR033FS0800Z	Littelfuse	Industrial & Electrical Fuses 800A 700V SIZE 33 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 25 Weeks	415,43 € 344,23 € 317,25 €	Min.: 3 Mult.: 3	Semiconductor Fuses	800 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 900A 700V SIZE 33 Flush End In. Thred PSR033FS0900Z Littelfuse 3: 453,19 € Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. PSR033FS0900Z Mouser Part No 576-PSR033FS0900Z	Littelfuse	Industrial & Electrical Fuses 900A 700V SIZE 33 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 25 Weeks	453,19 € 375,53 € 346,08 €	Min.: 3 Mult.: 3	Semiconductor Fuses	900 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 1000A 700V SIZE 33 Flush End In. Thred PSR033FS1000Z Littelfuse 3: 453,19 € Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. PSR033FS1000Z Mouser Part No 576-PSR033FS1000Z	Littelfuse	Industrial & Electrical Fuses 1000A 700V SIZE 33 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 25 Weeks	453,19 € 375,53 € 346,08 €	Min.: 3 Mult.: 3	Semiconductor Fuses	1 kA	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	33	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 2000A 700VAC SIZE 33 POWER-SPEED FLUSH I PSR033FS2000Z Littelfuse 3: 518,89 € Non-Stocked Lead-Time 25 Weeks	Mfr. Part No. PSR033FS2000Z Mouser Part No 576-PSR033FS2000Z	Littelfuse	Industrial & Electrical Fuses 2000A 700VAC SIZE 33 POWER-SPEED FLUSH I Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 25 Weeks	518,89 € 486,12 € 466,78 € Quote Quote	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
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US LONG BL 450A PSR033UL0450X Littelfuse 1: 427,80 € 12Factory Stock Available	Mfr. Part No. PSR033UL0450X Mouser Part No 576-PSR033UL0450X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US LONG BL 450A Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	427,80 € 354,37 € 311,03 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	33	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US LONG BL 900A PSR033UL0900X Littelfuse 1: 461,50 € 1Factory Stock Available	Mfr. Part No. PSR033UL0900X Mouser Part No 576-PSR033UL0900X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US LONG BL 900A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	461,50 € 382,26 € 339,24 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	900 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	33	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US SHRT BL 900A PSR033US0900X Littelfuse 1: 404,35 € 8Factory Stock Available	Mfr. Part No. PSR033US0900X Mouser Part No 576-PSR033US0900X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US SHRT BL 900A Learn More about Littelfuse psr fuses	Datasheet	8Factory Stock Available More Info Available	404,35 € 373,48 € 360,50 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	900 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	33	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US SHRT BL 1100A PSR033US1100X Littelfuse 1: 453,09 € 18Factory Stock Available	Mfr. Part No. PSR033US1100X Mouser Part No 576-PSR033US1100X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 33 US SHRT BL 1100A Learn More about Littelfuse psr fuses	Datasheet	18Factory Stock Available More Info Available	453,09 € 375,31 € 345,82 € Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	1.1 kA		Fast-Acting Fuses			Knife Blade	Class aR Fuses	33	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses 50A 1000V SIZE 70 Flush End Mtrc Thred PSR070FL0050Z Littelfuse 1: 326,83 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR070FL0050Z Mouser Part No 576-PSR070FL0050Z	Littelfuse	Industrial & Electrical Fuses 50A 1000V SIZE 70 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	326,83 € 252,22 € 241,75 € Quote Quote	Min.: 1 Mult.: 1	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
Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End Mtrc Thred PSR070FL0100Z Littelfuse 1: 326,83 € 12Factory Stock Available	Mfr. Part No. PSR070FL0100Z Mouser Part No 576-PSR070FL0100Z	Littelfuse	Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	326,83 € 258,41 € 247,84 € Quote Quote	Min.: 1 Mult.: 1	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
Industrial & Electrical Fuses 63A 1000V SIZE 70 Flush End In Thread PSR070FS0063Z Littelfuse 1: 320,07 € 4Factory Stock Available	Mfr. Part No. PSR070FS0063Z Mouser Part No 576-PSR070FS0063Z	Littelfuse	Industrial & Electrical Fuses 63A 1000V SIZE 70 Flush End In Thread Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	320,07 € 265,21 €	Min.: 1 Mult.: 1	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
Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End In Thread PSR070FS0100Z Littelfuse 1: 320,07 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR070FS0100Z Mouser Part No 576-PSR070FS0100Z	Littelfuse	Industrial & Electrical Fuses 100A 1000V SIZE 70 Flush End In Thread Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	320,07 € 265,21 €	Min.: 1 Mult.: 1	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