Industrial & Electrical Fuses – Mouser United Kingdom

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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 (GBP) 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 30 DIN 110MM 250A PSR030DL0250Z Littelfuse 1: £191.76 3Factory Stock Available	Mfr. Part No. PSR030DL0250Z Mouser Part No 576-PSR030DL0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 250A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£191.76 £162.47 £151.32 £135.02	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: £179.23 3Factory Stock Available	Mfr. Part No. PSR030DL0315Z Mouser Part No 576-PSR030DL0315Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 315A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£179.23 £165.15 £158.92 £151.26	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 400A PSR030DL0400Z Littelfuse 1: £192.77 6Factory Stock Available	Mfr. Part No. PSR030DL0400Z Mouser Part No 576-PSR030DL0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 110MM 400A Learn More about Littelfuse psr fuses	Datasheet	6Factory Stock Available More Info Available	£192.77 £177.06 £169.59 £160.54	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 80MM 40A PSR030DS0040Z Littelfuse 1: £166.61 3Factory Stock Available	Mfr. Part No. PSR030DS0040Z Mouser Part No 576-PSR030DS0040Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 40A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£166.61 £154.19 £147.63 £138.85	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: £166.60 9Factory Stock Available	Mfr. Part No. PSR030DS0050Z Mouser Part No 576-PSR030DS0050Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 50A Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	£166.60 £154.74 £148.84 £140.81	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: £166.60 9Factory Stock Available	Mfr. Part No. PSR030DS0063Z Mouser Part No 576-PSR030DS0063Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 63A Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	£166.60 £154.74 £148.84 £140.81	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: £198.83 3Factory Stock Available	Mfr. Part No. PSR030DS0080Z Mouser Part No 576-PSR030DS0080Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 80A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£198.83 £161.30 £148.68 £125.20	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 125A PSR030DS0125Z Littelfuse 1: £172.30 3Factory Stock Available	Mfr. Part No. PSR030DS0125Z Mouser Part No 576-PSR030DS0125Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 125A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£172.30 £158.80 £152.81 £145.46	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: £188.18 4Factory Stock Available	Mfr. Part No. PSR030DS0160Z Mouser Part No 576-PSR030DS0160Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 160A Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	£188.18 £156.19 £145.49 £130.11	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: £172.30 9Factory Stock Available	Mfr. Part No. PSR030DS0200Z Mouser Part No 576-PSR030DS0200Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 200A Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	£172.30 £158.80 £152.81 £145.46	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 80MM 250A PSR030DS0250Z Littelfuse 1: £172.30 42Factory Stock Available	Mfr. Part No. PSR030DS0250Z Mouser Part No 576-PSR030DS0250Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 250A Learn More about Littelfuse psr fuses	Datasheet	42Factory Stock Available More Info Available	£172.30 £158.80 £152.81 £145.46	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 80MM 350A PSR030DS0350Z Littelfuse 1: £186.26 1Factory Stock Available	Mfr. Part No. PSR030DS0350Z Mouser Part No 576-PSR030DS0350Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 350A Learn More about Littelfuse psr fuses	Datasheet	1Factory Stock Available More Info Available	£186.26 £170.72 £163.51 £154.79	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 80MM 400A PSR030DS0400Z Littelfuse 1: £187.02 3Factory Stock Available	Mfr. Part No. PSR030DS0400Z Mouser Part No 576-PSR030DS0400Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 DIN 80MM 400A Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£187.02 £165.54 £158.49 £149.78	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 50A 700V SIZE 30 Flush End Mtrc Thred PSR030FL0050Z Littelfuse 1: £167.11 9Factory Stock Available	Mfr. Part No. PSR030FL0050Z Mouser Part No 576-PSR030FL0050Z	Littelfuse	Industrial & Electrical Fuses 50A 700V SIZE 30 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	£167.11 £133.48 £124.99 £105.28	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 80A 700V SIZE 30 Flush End Mtrc Thred PSR030FL0080Z Littelfuse 1: £138.96 3Factory Stock Available	Mfr. Part No. PSR030FL0080Z Mouser Part No 576-PSR030FL0080Z	Littelfuse	Industrial & Electrical Fuses 80A 700V SIZE 30 Flush End Mtrc Thred Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£138.96 £130.82 £119.15 £117.68	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 250A 700VAC SIZE 30 POWER-SPEED FLUSH M PSR030FL0250Z Littelfuse 1: £184.60 18Factory Stock Available	Mfr. Part No. PSR030FL0250Z Mouser Part No 576-PSR030FL0250Z	Littelfuse	Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	18Factory Stock Available More Info Available	£184.60 £153.03 £141.08 £116.58	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 500A 700VAC SIZE 30 POWER-SPEED FLUSH M PSR030FL0500Z Littelfuse 1: £202.18 24Factory Stock Available	Mfr. Part No. PSR030FL0500Z Mouser Part No 576-PSR030FL0500Z	Littelfuse	Industrial & Electrical Fuses 500A 700VAC SIZE 30 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	24Factory Stock Available More Info Available	£202.18 £167.60 £154.52 £127.68	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M PSR030FS0125Z Littelfuse 1: £193.39 11Factory Stock Available	Mfr. Part No. PSR030FS0125Z Mouser Part No 576-PSR030FS0125Z	Littelfuse	Industrial & Electrical Fuses 125A 700VAC SIZE 30 POWER-SPEED FLUSH M Learn More about Littelfuse psr fuses	Datasheet	11Factory Stock Available More Info Available	£193.39 £160.32	Min.: 1 Mult.: 1	Semiconductor Fuses	125 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 160A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0160Z Littelfuse 1: £193.39 7Factory Stock Available	Mfr. Part No. PSR030FS0160Z Mouser Part No 576-PSR030FS0160Z	Littelfuse	Industrial & Electrical Fuses 160A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	7Factory Stock Available More Info Available	£193.39 £160.32	Min.: 1 Mult.: 1	Semiconductor Fuses	160 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0250Z Littelfuse 1: £193.39 5Factory Stock Available	Mfr. Part No. PSR030FS0250Z Mouser Part No 576-PSR030FS0250Z	Littelfuse	Industrial & Electrical Fuses 250A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	5Factory Stock Available More Info Available	£193.39 £160.32	Min.: 1 Mult.: 1	Semiconductor Fuses	250 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 450A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0450Z Littelfuse 1: £206.63 12Factory Stock Available	Mfr. Part No. PSR030FS0450Z Mouser Part No 576-PSR030FS0450Z	Littelfuse	Industrial & Electrical Fuses 450A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	£206.63 £167.67	Min.: 1 Mult.: 1	Semiconductor Fuses	450 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 500A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0500Z Littelfuse 1: £206.63 3Factory Stock Available	Mfr. Part No. PSR030FS0500Z Mouser Part No 576-PSR030FS0500Z	Littelfuse	Industrial & Electrical Fuses 500A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	3Factory Stock Available More Info Available	£206.63 £167.67	Min.: 1 Mult.: 1	Semiconductor Fuses	500 A	700 VAC	Fast-Acting Fuses	600 VDC		Quick Connect	Class aR Fuses	30	Visual Side Indicator	Bulk	PSR
Industrial & Electrical Fuses 550A 700VAC SIZE 30 POWER-SPEED FLUSH IN PSR030FS0550Z Littelfuse 1: £192.10 9Factory Stock Available	Mfr. Part No. PSR030FS0550Z Mouser Part No 576-PSR030FS0550Z	Littelfuse	Industrial & Electrical Fuses 550A 700VAC SIZE 30 POWER-SPEED FLUSH IN Learn More about Littelfuse psr fuses	Datasheet	9Factory Stock Available More Info Available	£192.10 £156.20	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 POWR-SPEED SQB SIZE 30 US LONG BL 63A PSR030UL0063Z Littelfuse 1: £206.62 12Factory Stock Available	Mfr. Part No. PSR030UL0063Z Mouser Part No 576-PSR030UL0063Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 63A Learn More about Littelfuse psr fuses	Datasheet	12Factory Stock Available More Info Available	£206.62 £167.62 £154.49 £130.12	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 LONG BL 100A PSR030UL0100Z Littelfuse 1: £191.20 4Factory Stock Available	Mfr. Part No. PSR030UL0100Z Mouser Part No 576-PSR030UL0100Z	Littelfuse	Industrial & Electrical Fuses POWR-SPEED SQB SIZE 30 US LONG BL 100A Learn More about Littelfuse psr fuses	Datasheet	4Factory Stock Available More Info Available	£191.20 £162.25 £149.54 £135.01	Min.: 1 Mult.: 1	Semiconductor Fuses	100 A		Fast-Acting Fuses			Knife Blade	Class aR Fuses	30	Visual Indicator	Bulk	PSR