Industrial & Electrical Fuses

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) 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 70 US LONG BL 200A PSR070UL0200Z Littelfuse 1: $509.23 18In Stock	Mfr. Part # PSR070UL0200Z Mouser Part # 576-PSR070UL0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 200A Learn More about Littelfuse psr fuses	Datasheet	18In Stock	$509.23 $449.32 $435.47	Min.: 1 Mult.: 1	Semiconductor Fuses	200 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	70	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A PSR072DL0500X Littelfuse 1: $800.55 5In Stock	Mfr. Part # PSR072DL0500X Mouser Part # 576-PSR072DL0500X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 72 DIN 110MM 500A Learn More about Littelfuse psr fuses	Datasheet	5In Stock	$800.55 $630.89 $575.63 Quote Quote	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
Industrial & Electrical Fuses 1000V SIZE 70 LONG BL 100A PSR070UL0100Z Littelfuse 1: $572.49 1In Stock	Mfr. Part # PSR070UL0100Z Mouser Part # 576-PSR070UL0100Z	Littelfuse	Industrial & Electrical Fuses 1000V SIZE 70 LONG BL 100A Learn More about Littelfuse psr fuses	Datasheet	1In Stock	$572.49 $480.28 $442.58	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	70	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 50A PSR070UL0050Z Littelfuse 1: $557.58 1In Stock	Mfr. Part # PSR070UL0050Z Mouser Part # 576-PSR070UL0050Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 50A Learn More about Littelfuse psr fuses	Datasheet	1In Stock	$557.58 $453.10 $417.51 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	70	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses 900V FAST BLOW 700A PSR073UL0700X Littelfuse 1: $766.63 11On Order	Mfr. Part # PSR073UL0700X Mouser Part # 576-PSR073UL0700X	Littelfuse	Industrial & Electrical Fuses 900V FAST BLOW 700A Learn More about Littelfuse psr fuses	Datasheet	11On Order On Order Ship Dates Mfr. #: PSR073UL0700X Stock: 0 On Order: 4 Expected 2026-12-29 7 Expected 2026-12-31 Factory Lead-Time: 15 Weeks	$766.63 $728.44 $724.41	Min.: 1 Mult.: 1	Semiconductor Fuses	700 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	73	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 250A PSR070UL0250Z Littelfuse 1: $616.38 3Expected 2026-12-21	Mfr. Part # PSR070UL0250Z Mouser Part # 576-PSR070UL0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 70 US LONG BL 250A Learn More about Littelfuse psr fuses	Datasheet	3Expected 2026-12-21	$616.38 $499.90 $445.26 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	70	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 100A PSR030UL0100Z Littelfuse 1: $411.39 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR030UL0100Z Mouser Part # 576-PSR030UL0100Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 100A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	$411.39 $333.73 $289.97 $270.00	Min.: 1 Mult.: 1	Semiconductor Fuses	100 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: $345.21 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR030UL0250Z Mouser Part # 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	$345.21 $311.53 $296.44 $280.37	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 500A PSR030UL0500Z Littelfuse 1: $370.32 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR030UL0500Z Mouser Part # 576-PSR030UL0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	$370.32 $337.98 $324.19 $308.32	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 125A PSR030US0125Z Littelfuse 1: $396.29 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR030US0125Z Mouser Part # 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	$396.29 $321.51 $296.34 $259.20	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 31 DIN 110MM 500A PSR031DL0500Z Littelfuse 1: $406.89 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031DL0500Z Mouser Part # 576-PSR031DL0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 110MM 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$406.89 $381.38 $366.87 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	31	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 700A PSR031DS0700Z Littelfuse 3: $468.09 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR031DS0700Z Mouser Part # 576-PSR031DS0700Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 DIN 80MM 700A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	$468.09 $437.76 $422.38 Quote Quote	Min.: 3 Mult.: 3	Semiconductor Fuses	700 A	700 VAC	Fast-Acting Fuses	600 VDC	150 kA, 200 kA	Blade / Bolt	Class aR Fuses	31	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 200A PSR031UL0200Z Littelfuse 1: $448.79 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031UL0200Z Mouser Part # 576-PSR031UL0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 200A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$448.79 $348.75 $318.99 $302.54	Min.: 1 Mult.: 1	Semiconductor Fuses	200 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: $416.04 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031UL0400Z Mouser Part # 576-PSR031UL0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 400A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$416.04 $350.55 $326.49 $308.49	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 500A PSR031UL0500Z Littelfuse 1: $449.77 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031UL0500Z Mouser Part # 576-PSR031UL0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$449.77 $357.94 $343.64 Quote Quote	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 LONG BL 700A PSR031UL0700Z Littelfuse 1: $588.15 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR031UL0700Z Mouser Part # 576-PSR031UL0700Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US LONG BL 700A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	$588.15 $449.45 $419.69 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	700 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 250A PSR031US0250Z Littelfuse 1: $441.23 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # PSR031US0250Z Mouser Part # 576-PSR031US0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 250A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	$441.23 $357.91 $315.30 $291.60	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 SHRT BL 400A PSR031US0400Z Littelfuse 1: $369.72 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031US0400Z Mouser Part # 576-PSR031US0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 400A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$369.72 $345.23 $333.29 $317.42	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: $470.75 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # PSR031US0500Z Mouser Part # 576-PSR031US0500Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 31 US SHRT BL 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 18 Weeks	$470.75 $381.93 $351.98 $337.19	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 32 DIN 110MM 700A PSR032DL0700X Littelfuse 1: $492.51 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032DL0700X Mouser Part # 576-PSR032DL0700X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 DIN 110MM 700A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$492.51 $433.07 $417.08 Quote Quote	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 US LONG BL 630A PSR032UL0630X Littelfuse 1: $465.67 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032UL0630X Mouser Part # 576-PSR032UL0630X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 630A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$465.67 $421.62 $399.30 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	630 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: $630.81 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032UL1000X Mouser Part # 576-PSR032UL1000X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US LONG BL 1000A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$630.81 $522.62 $481.61 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 SHRT BL 450A PSR032US0450X Littelfuse 1: $463.49 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032US0450X Mouser Part # 576-PSR032US0450X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 450A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$463.49 $387.72 $371.40 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 500A PSR032US0500X Littelfuse 1: $439.76 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032US0500X Mouser Part # 576-PSR032US0500X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 500A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$439.76 $402.97 $382.09 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR
Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 800A PSR032US0800X Littelfuse 1: $619.42 Non-Stocked Lead-Time 21 Weeks	Mfr. Part # PSR032US0800X Mouser Part # 576-PSR032US0800X	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB Size 32 US SHRT BL 800A Learn More about Littelfuse psr fuses	Datasheet	Non-Stocked Lead-Time 21 Weeks	$619.42 $470.76 $439.59 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	800 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	32	Visual Indicator	Bulk	PSR

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