Industrial & Electrical Fuses

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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	Indicator Style	Packaging	Series
Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED L50QS350.V Littelfuse 1: ¥22,275.7 56In Stock	Mfr. Part # L50QS350.V Mouser Part # 576-L50QS350.V	Littelfuse	Industrial & Electrical Fuses 350A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	56In Stock	¥22,275.7 ¥18,123.2 ¥16,656.5 ¥15,123.4	Min.: 1 Mult.: 1	Semiconductor Fuses	350 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED L50QS090.T Littelfuse 1: ¥11,127 43In Stock	Mfr. Part # L50QS090.T Mouser Part # 576-L50QS090.T	Littelfuse	Industrial & Electrical Fuses 90A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	43In Stock	¥11,127 ¥9,348.1 ¥9,235.2 ¥6,948 View ¥6,590.8 ¥6,124.1	Min.: 1 Mult.: 1	Semiconductor Fuses	90 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED L50QS100.T Littelfuse 1: ¥10,236.7 256In Stock 120On Order	Mfr. Part # L50QS100.T Mouser Part # 576-L50QS100.T	Littelfuse	Industrial & Electrical Fuses 100A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	256In Stock 120On Order On Order Ship Dates Mfr. #: L50QS100.T Stock: 256 Can Ship Immediately On Order: 30 Pending 90 Expected 11/5/2026 Factory Lead-Time: 11 Weeks	¥10,236.7 ¥8,791.7 ¥7,876.5 ¥7,192.1 View ¥6,597.5 ¥6,124.1	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED L50QS150.V Littelfuse 1: ¥16,005.4 115In Stock	Mfr. Part # L50QS150.V Mouser Part # 576-L50QS150.V	Littelfuse	Industrial & Electrical Fuses 150A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	115In Stock	¥16,005.4 ¥13,733.1 ¥12,809.6 ¥10,809.8 View ¥9,952.7 Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	150 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED L50QS200.V Littelfuse 1: ¥16,779.4 29In Stock	Mfr. Part # L50QS200.V Mouser Part # 576-L50QS200.V	Littelfuse	Industrial & Electrical Fuses 200A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	29In Stock	¥16,779.4 ¥13,915.9 ¥12,834.5 ¥10,617.1 ¥9,806.5	Min.: 1 Mult.: 1	Semiconductor Fuses	200 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED L50QS250.V Littelfuse 1: ¥26,680.6 20In Stock	Mfr. Part # L50QS250.V Mouser Part # 576-L50QS250.V	Littelfuse	Industrial & Electrical Fuses 250A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	20In Stock	¥26,680.6 ¥22,126.2 ¥20,403.7 ¥16,877.4 ¥15,537	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED L50QS300.V Littelfuse 1: ¥26,680.6 27In Stock 33Expected 1/7/2027	Mfr. Part # L50QS300.V Mouser Part # 576-L50QS300.V	Littelfuse	Industrial & Electrical Fuses 300A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	27In Stock 33Expected 1/7/2027	¥26,680.6 ¥22,126.2 ¥20,403.7 ¥16,877.4 ¥15,537	Min.: 1 Mult.: 1	Semiconductor Fuses	300 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED L50QS600.X Littelfuse 1: ¥39,721.2 56In Stock	Mfr. Part # L50QS600.X Mouser Part # 576-L50QS600.X	Littelfuse	Industrial & Electrical Fuses 600A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	56In Stock	¥39,721.2 ¥32,927.7 ¥30,356.4 ¥25,084.4	Min.: 1 Mult.: 1	Semiconductor Fuses	600 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED L50QS060.T Littelfuse 1: ¥10,862.9 11In Stock 16Expected 11/10/2026	Mfr. Part # L50QS060.T Mouser Part # 576-L50QS060.T	Littelfuse	Industrial & Electrical Fuses 60A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	11In Stock 16Expected 11/10/2026	¥10,862.9 ¥9,424.5 ¥8,726.9 ¥6,745.3 View ¥6,212.1 ¥5,567.7	Min.: 1 Mult.: 1	Semiconductor Fuses	60 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED L50QS080.T Littelfuse 1: ¥12,070.5 2In Stock 12Expected 12/31/2026	Mfr. Part # L50QS080.T Mouser Part # 576-L50QS080.T	Littelfuse	Industrial & Electrical Fuses 80A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	2In Stock 12Expected 12/31/2026	¥12,070.5 ¥10,009.2 ¥9,235.2 ¥7,647.2 View ¥7,099.1 ¥6,625.7	Min.: 1 Mult.: 1	Semiconductor Fuses	80 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 175A 500VAC 500VDC FF L50QS POWR-SPEED L50QS175.V Littelfuse 1: ¥16,779.4 10In Stock	Mfr. Part # L50QS175.V Mouser Part # 576-L50QS175.V	Littelfuse	Industrial & Electrical Fuses 175A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	10In Stock	¥16,779.4 ¥13,915.9 ¥12,834.5 ¥10,617.1 ¥9,806.5	Min.: 1 Mult.: 1	Semiconductor Fuses	175 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED L50QS500.X Littelfuse 1: ¥39,721.2 2In Stock 14Expected 12/14/2026	Mfr. Part # L50QS500.X Mouser Part # 576-L50QS500.X	Littelfuse	Industrial & Electrical Fuses 500A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	2In Stock 14Expected 12/14/2026	¥39,721.2 ¥32,927.7 ¥30,356.4 ¥25,084.4	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED L50QS035.T Littelfuse 1: ¥10,386.2 32In Stock 140Expected 1/18/2027	Mfr. Part # L50QS035.T Mouser Part # 576-L50QS035.T	Littelfuse	Industrial & Electrical Fuses 35A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	32In Stock 140Expected 1/18/2027	¥10,386.2 ¥8,702 ¥8,456.2 ¥7,001.1 View ¥6,476.2 ¥5,846.7	Min.: 1 Mult.: 1	Semiconductor Fuses	35 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED L50QS125.V Littelfuse 1: ¥16,779.4 270On Order	Mfr. Part # L50QS125.V Mouser Part # 576-L50QS125.V	Littelfuse	Industrial & Electrical Fuses 125A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	270On Order On Order Ship Dates Mfr. #: L50QS125.V Stock: 0 On Order: 5 Expected 11/11/2026 90 Expected 11/19/2026 175 Expected 1/12/2027 Factory Lead-Time: 11 Weeks	¥16,779.4 ¥13,915.9 ¥12,834.5 ¥10,617.1 ¥9,806.5	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 50A 500VAC 500VDC FF L50QS POWR-SPEED L50QS050.T Littelfuse 1: ¥10,650.3 57Expected 12/14/2026	Mfr. Part # L50QS050.T Mouser Part # 576-L50QS050.T	Littelfuse	Industrial & Electrical Fuses 50A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	57Expected 12/14/2026	¥10,650.3 ¥8,834.9 ¥8,148.9 ¥6,745.3 View ¥6,212.1 ¥5,567.7	Min.: 1 Mult.: 1	Semiconductor Fuses	50 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED L50QS400.V Littelfuse 1: ¥24,142.6 32Expected 12/3/2026	Mfr. Part # L50QS400.V Mouser Part # 576-L50QS400.V	Littelfuse	Industrial & Electrical Fuses 400A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	32Expected 12/3/2026	¥24,142.6 ¥20,601.4 ¥19,872.2 ¥15,877.5 View ¥14,877.6 Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	400 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 40A 500VAC 500VDC FF L50QS POWR-SPEED L50QS040.T Littelfuse 1: ¥10,480.9 33Expected 12/21/2026	Mfr. Part # L50QS040.T Mouser Part # 576-L50QS040.T	Littelfuse	Industrial & Electrical Fuses 40A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	33Expected 12/21/2026	¥10,480.9 ¥9,009.3 ¥8,311.6 ¥6,471.3 View ¥6,087.6 ¥5,831.8	Min.: 1 Mult.: 1	Semiconductor Fuses	40 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED L50QS070.T Littelfuse 1: ¥11,721.7 8Expected 2/9/2027	Mfr. Part # L50QS070.T Mouser Part # 576-L50QS070.T	Littelfuse	Industrial & Electrical Fuses 70A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	8Expected 2/9/2027	¥11,721.7 ¥9,723.5 ¥8,969.4 ¥7,421.3 View ¥6,835 ¥6,124.1	Min.: 1 Mult.: 1	Semiconductor Fuses	70 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 225A 500VAC 500VDC FF L50QS POWR-SPEED L50QS225.V Littelfuse 1: ¥23,455 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # L50QS225.V Mouser Part # 576-L50QS225.V	Littelfuse	Industrial & Electrical Fuses 225A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	¥23,455 ¥20,742.6 ¥19,365.6 ¥16,430.6 ¥15,123.4	Min.: 1 Mult.: 1	Semiconductor Fuses	225 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED L50QS450.X Littelfuse 1: ¥39,721.2 Non-Stocked Lead-Time 11 Weeks	Mfr. Part # L50QS450.X Mouser Part # 576-L50QS450.X	Littelfuse	Industrial & Electrical Fuses 450A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 11 Weeks	¥39,721.2 ¥32,927.7 ¥30,356.4 ¥25,084.4	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 275A 500VAC 500VDC FF L50QS POWR-SPEED L50QS275.V Littelfuse 1: ¥25,993 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # L50QS275.V Mouser Part # 576-L50QS275.V	Littelfuse	Industrial & Electrical Fuses 275A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	¥25,993 ¥20,624.6 ¥19,249.3 ¥16,430.6 ¥15,123.4	Min.: 1 Mult.: 1	Semiconductor Fuses	275 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 325A 500VAC 500VDC FF L50QS POWR-SPEED L50QS325.V Littelfuse 1: ¥24,479.8 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # L50QS325.V Mouser Part # 576-L50QS325.V	Littelfuse	Industrial & Electrical Fuses 325A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	¥24,479.8 ¥20,890.4 ¥17,925.5 ¥17,493.7 View ¥16,804.3 Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	325 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 700A 500VAC 500VDC FF L50QS POWR-SPEED L50QS700.X Littelfuse 1: ¥63,716 Non-Stocked Lead-Time 37 Weeks	Mfr. Part # L50QS700.X Mouser Part # 576-L50QS700.X	Littelfuse	Industrial & Electrical Fuses 700A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 37 Weeks	¥63,716 ¥54,132	Min.: 1 Mult.: 1	Semiconductor Fuses	700 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS
Industrial & Electrical Fuses 800A 500VAC 500VDC FF L50QS POWR-SPEED L50QS800.X Littelfuse 1: ¥60,045.2 Non-Stocked Lead-Time 15 Weeks	Mfr. Part # L50QS800.X Mouser Part # 576-L50QS800.X	Littelfuse	Industrial & Electrical Fuses 800A 500VAC 500VDC FF L50QS POWR-SPEED Learn More about Littelfuse qs high speed fuses	Datasheet	Non-Stocked Lead-Time 15 Weeks	¥60,045.2 ¥52,794.9 ¥48,660.7 Quote Quote	Min.: 1 Mult.: 1	Semiconductor Fuses	800 A	500 VAC	Fast-Acting Fuses	500 VDC	200 kA	Bolt Down	Class aR Fuses	Without Indicator	Bulk	L50QS

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