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 (JPY) 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 73 US LONG BL 315A PSR073UL0315X Littelfuse 1: ¥93,001.1 Non-Stocked Lead-Time 11 Weeks	Mfr. Part # PSR073UL0315X Mouser Part # 576-PSR073UL0315X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 73 US LONG BL 315A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 11 Weeks	¥93,001.1 ¥77,062.1 ¥71,019.4	Min.: 1 Mult.: 1	Semiconductor Fuses	315 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	73	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 40A PSR030DL0040Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0040Z Mouser Part # 576-PSR030DL0040Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 40A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	40 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 50A PSR030DL0050Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0050Z Mouser Part # 576-PSR030DL0050Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 50A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA		Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 63A PSR030DL0063Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0063Z Mouser Part # 576-PSR030DL0063Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 63A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	63 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 80A PSR030DL0080Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0080Z Mouser Part # 576-PSR030DL0080Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 80A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	80 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 100A PSR030DL0100Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0100Z Mouser Part # 576-PSR030DL0100Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 100A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 125A PSR030DL0125Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0125Z Mouser Part # 576-PSR030DL0125Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 125A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 160A PSR030DL0160Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0160Z Mouser Part # 576-PSR030DL0160Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 160A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	Min.: 1 Mult.: 1	Semiconductor Fuses	160 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 200A PSR030DL0200Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0200Z Mouser Part # 576-PSR030DL0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 200A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	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
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 250A PSR030DL0250Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0250Z Mouser Part # 576-PSR030DL0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 250A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	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
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 315A PSR030DL0315Z Littelfuse 1: ¥47,619.2 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0315Z Mouser Part # 576-PSR030DL0315Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 315A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥47,619.2 ¥38,639.8 ¥35,610.2 ¥29,982.7	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
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 350A PSR030DL0350Z Littelfuse 1: ¥51,429.5 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0350Z Mouser Part # 576-PSR030DL0350Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 350A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥51,429.5 ¥41,731 ¥38,458.8 ¥32,381.2	Min.: 1 Mult.: 1	Semiconductor Fuses	350 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 400A PSR030DL0400Z Littelfuse 1: ¥51,429.5 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0400Z Mouser Part # 576-PSR030DL0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 400A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥51,429.5 ¥41,731 ¥38,458.8 ¥32,381.2	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 450A PSR030DL0450Z Littelfuse 1: ¥51,429.5 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0450Z Mouser Part # 576-PSR030DL0450Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 450A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥51,429.5 ¥41,731 ¥38,458.8 ¥32,381.2	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 500A PSR030DL0500Z Littelfuse 1: ¥51,429.5 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0500Z Mouser Part # 576-PSR030DL0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥51,429.5 ¥41,731 ¥38,458.8 ¥32,381.2	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 550A PSR030DL0550Z Littelfuse 1: ¥54,324.7 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0550Z Mouser Part # 576-PSR030DL0550Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 550A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥54,324.7 ¥45,013.1 ¥41,490.1	Min.: 1 Mult.: 1	Semiconductor Fuses	550 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 630A PSR030DL0630Z Littelfuse 1: ¥54,301.4 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DL0630Z Mouser Part # 576-PSR030DL0630Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 630A	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥54,301.4 ¥44,048.1 ¥40,598.2	Min.: 1 Mult.: 1	Semiconductor Fuses	630 A	700 VAC	Fast-Acting Fuses	550 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 40A PSR030DS0040Z Littelfuse 1: ¥44,729.1 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0040Z Mouser Part # 576-PSR030DS0040Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 40A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥44,729.1 ¥37,078.5 ¥34,185 ¥28,248.6	Min.: 1 Mult.: 1	Semiconductor Fuses	40 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 50A PSR030DS0050Z Littelfuse 1: ¥44,729.1 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0050Z Mouser Part # 576-PSR030DS0050Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 50A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥44,729.1 ¥37,078.5 ¥34,185 ¥28,248.6	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 63A PSR030DS0063Z Littelfuse 1: ¥44,729.1 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0063Z Mouser Part # 576-PSR030DS0063Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 63A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥44,729.1 ¥37,078.5 ¥34,185 ¥28,248.6	Min.: 1 Mult.: 1	Semiconductor Fuses	63 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 80A PSR030DS0080Z Littelfuse 1: ¥44,729.1 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0080Z Mouser Part # 576-PSR030DS0080Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 80A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥44,729.1 ¥37,078.5 ¥34,185 ¥28,248.6	Min.: 1 Mult.: 1	Semiconductor Fuses	80 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 100A PSR030DS0100Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0100Z Mouser Part # 576-PSR030DS0100Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 100A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 125A PSR030DS0125Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0125Z Mouser Part # 576-PSR030DS0125Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 125A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 160A PSR030DS0160Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0160Z Mouser Part # 576-PSR030DS0160Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 160A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	Min.: 1 Mult.: 1	Semiconductor Fuses	160 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 200A PSR030DS0200Z Littelfuse 1: ¥45,714 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR030DS0200Z Mouser Part # 576-PSR030DS0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 200A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	¥45,714 ¥37,093.5 ¥34,185 ¥28,783.5	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

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