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 550A 700VAC SIZE 30 POWER-SPEED FLUSH M PSR030FL0550Z Littelfuse 1: 236,69 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030FL0550Z Mouser Part No 576-PSR030FL0550Z	Littelfuse	Industrial & Electrical Fuses 550A 700VAC SIZE 30 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	236,69 € 192,06 € 177,00 € 149,03 €	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
Industrial & Electrical Fuses 40A 700V SIZE 30 Flush End In. Thred PSR030FS0040Z Littelfuse 1: 164,15 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0040Z Mouser Part No 576-PSR030FS0040Z	Littelfuse	Industrial & Electrical Fuses 40A 700V SIZE 30 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	164,15 € 157,03 € 145,82 €	Min.: 1 Mult.: 1	Semiconductor Fuses	40 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 50A 700V SIZE 30 Flush End In. Thred PSR030FS0050Z Littelfuse 1: 168,09 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0050Z Mouser Part No 576-PSR030FS0050Z	Littelfuse	Industrial & Electrical Fuses 50A 700V SIZE 30 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	168,09 € 168,08 €	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 63A 700V SIZE 30 Flush End In. Thred PSR030FS0063Z Littelfuse 1: 201,38 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0063Z Mouser Part No 576-PSR030FS0063Z	Littelfuse	Industrial & Electrical Fuses 63A 700V SIZE 30 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	201,38 € 166,94 € 153,91 €	Min.: 1 Mult.: 1	Semiconductor Fuses	63 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 80A 700V SIZE 30 Flush End In. Thred PSR030FS0080Z Littelfuse 1: 166,78 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0080Z Mouser Part No 576-PSR030FS0080Z	Littelfuse	Industrial & Electrical Fuses 80A 700V SIZE 30 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	166,78 € 152,76 € 143,00 €	Min.: 1 Mult.: 1	Semiconductor Fuses	80 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 100A 700V SIZE 30 Flush End In. Thred PSR030FS0100Z Littelfuse 1: 201,38 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0100Z Mouser Part No 576-PSR030FS0100Z	Littelfuse	Industrial & Electrical Fuses 100A 700V SIZE 30 Flush End In. Thred Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	201,38 € 166,94 € 153,91 €	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 200A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0200Z Littelfuse 1: 221,52 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0200Z Mouser Part No 576-PSR030FS0200Z	Littelfuse	Industrial & Electrical Fuses 200A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	221,52 € 183,64 €	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
Industrial & Electrical Fuses 315A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0315Z Littelfuse 1: 221,52 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0315Z Mouser Part No 576-PSR030FS0315Z	Littelfuse	Industrial & Electrical Fuses 315A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	221,52 € 183,64 €	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
Industrial & Electrical Fuses 350A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0350Z Littelfuse 1: 221,52 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0350Z Mouser Part No 576-PSR030FS0350Z	Littelfuse	Industrial & Electrical Fuses 350A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	221,52 € 183,64 €	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
Industrial & Electrical Fuses 400A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0400Z Littelfuse 1: 236,69 € Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. PSR030FS0400Z Mouser Part No 576-PSR030FS0400Z	Littelfuse	Industrial & Electrical Fuses 400A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 30 Weeks	236,69 € 192,06 €	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
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 40A PSR030UL0040Z Littelfuse 1: 210,09 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030UL0040Z Mouser Part No 576-PSR030UL0040Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 40A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	210,09 € 178,57 € 166,47 € 149,05 €	Min.: 1 Mult.: 1	Semiconductor Fuses	40 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 50A PSR030UL0050Z Littelfuse 1: 211,19 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030UL0050Z Mouser Part No 576-PSR030UL0050Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 50A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	211,19 € 190,82 €	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 80A PSR030UL0080Z Littelfuse 1: 236,68 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030UL0080Z Mouser Part No 576-PSR030UL0080Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 80A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	236,68 € 178,61 € 166,83 € 149,05 €	Min.: 1 Mult.: 1	Semiconductor Fuses	80 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 125A PSR030UL0125Z Littelfuse 1: 205,87 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030UL0125Z Mouser Part No 576-PSR030UL0125Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 125A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	205,87 € 188,38 € 180,57 € 170,97 €	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 250A PSR030UL0250Z Littelfuse 1: 206,17 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030UL0250Z Mouser Part No 576-PSR030UL0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 250A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	206,17 € 182,41 € 173,60 € 164,00 €	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 350A PSR030UL0350Z Littelfuse 1: 220,81 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030UL0350Z Mouser Part No 576-PSR030UL0350Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 350A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	220,81 € 203,73 € 196,01 € 186,53 €	Min.: 1 Mult.: 1	Semiconductor Fuses	350 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 450A PSR030UL0450Z Littelfuse 1: 236,58 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030UL0450Z Mouser Part No 576-PSR030UL0450Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 450A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	236,58 € 200,43 € 186,66 € 165,84 €	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 63A PSR030US0063Z Littelfuse 1: 227,75 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030US0063Z Mouser Part No 576-PSR030US0063Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 63A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	227,75 € 184,77 € 162,48 € 143,41 €	Min.: 1 Mult.: 1	Semiconductor Fuses	63 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 125A PSR030US0125Z Littelfuse 1: 236,68 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030US0125Z Mouser Part No 576-PSR030US0125Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 125A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	236,68 € 192,00 € 176,97 € 149,05 €	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 160A PSR030US0160Z Littelfuse 1: 211,19 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030US0160Z Mouser Part No 576-PSR030US0160Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 160A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	211,19 € 178,91 € 166,65 € 149,04 €	Min.: 1 Mult.: 1	Semiconductor Fuses	160 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 315A PSR030US0315Z Littelfuse 1: 211,19 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030US0315Z Mouser Part No 576-PSR030US0315Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 315A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	211,19 € 178,91 € 166,65 € 149,04 €	Min.: 1 Mult.: 1	Semiconductor Fuses	315 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 450A PSR030US0450Z Littelfuse 1: 228,12 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030US0450Z Mouser Part No 576-PSR030US0450Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 450A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	228,12 € 193,27 € 180,00 € 160,26 €	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses 700V SIZE 30 FLUSH 500A PSR030US0500Z Littelfuse 1: 262,41 € Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. PSR030US0500Z Mouser Part No 576-PSR030US0500Z	Littelfuse	Industrial & Electrical Fuses 700V SIZE 30 FLUSH 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	262,41 € 204,57 € 193,85 € 169,88 €	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 550A PSR030US0550Z Littelfuse 1: 272,37 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR030US0550Z Mouser Part No 576-PSR030US0550Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US SHRT BL 550A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	272,37 € 220,93 € 193,32 € 183,49 €	Min.: 1 Mult.: 1	Semiconductor Fuses	550 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 200A PSR031DL0200Z Littelfuse 1: 228,22 € Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. PSR031DL0200Z Mouser Part No 576-PSR031DL0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 200A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	228,22 € 210,98 € 202,99 € 193,16 €	Min.: 1 Mult.: 1	Semiconductor Fuses	200 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	31	Visual Side Indicator	Bulk	PSR