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Electrical, Specialty Fuses

Browse available Electrical, Specialty Fuses part numbers with manufacturer references, stock information, pricing, datasheets and key specifications. Use the table below to compare options for your project.

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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package / Case Packaging Product Status Mounting Type Fuse Type Current Rating (Amps) Voltage Rating - AC Voltage Rating - DC Response Time Applications Features Class Approval Agency Operating Temperature Breaking Capacity @ Rated Voltage Size / Dimension Grade Qualification
PSR030FL0200Z Littelfuse Inc.

PSR030FL0200Z

FUSE SQUARE 200A 700VAC/600VDC

Littelfuse Inc.

2,825 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 200A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 1.693" W x 1.929" H (50.00mm x 43.00mm x 49.00mm) - -
PSR030FS0200Z Littelfuse Inc.

PSR030FS0200Z

FUSE SQUARE 200A 700VAC/600VDC

Littelfuse Inc.

4,159 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 200A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 1.693" W x 1.929" H (50.00mm x 43.00mm x 49.00mm) - -
PSR030FL0450Z Littelfuse Inc.

PSR030FL0450Z

FUSE SQUARE 450A 700VAC/600VDC

Littelfuse Inc.

7,587 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 450A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 1.693" W x 1.929" H (50.00mm x 43.00mm x 49.00mm) - -
PSR030FS0400Z Littelfuse Inc.

PSR030FS0400Z

FUSE SQUARE 400A 700VAC/600VDC

Littelfuse Inc.

9,093 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 400A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 1.693" W x 1.929" H (50.00mm x 43.00mm x 49.00mm) - -
PSR031FS0400Z Littelfuse Inc.

PSR031FS0400Z

FUSE SQUARE 400A 700VAC/600VDC

Littelfuse Inc.

3,321 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 400A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) - -
FRS-R-200 Eaton - Bussmann Electrical Division

FRS-R-200

FUSE CRTRDGE 200A 600VAC/300VDC

Eaton - Bussmann Electrical Division

3,127 -
Datasheet Fusetron™ FRS-R Cartridge, Non-Standard Bulk Active Requires Holder Cartridge 200A 600 VAC 300 VDC Slow Blow Electrical, Industrial - RK5 CE, CSA, UL - 200kA AC, 20kA DC 1.610" Dia x 9.630" L (40.89mm x 244.60mm) - -
PSR031UL0400Z Littelfuse Inc.

PSR031UL0400Z

FUSE SQUARE 400A 700VAC/600VDC

Littelfuse Inc.

4,706 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 400A 700 VAC 600 VDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.898" L x 2.028" W x 2.264" H (48.20mm x 51.50mm x 57.50mm) - -
FRS-R-125 Eaton - Bussmann Electrical Division

FRS-R-125

FUSE CRTRDGE 125A 600VAC/300VDC

Eaton - Bussmann Electrical Division

2,249 -
Datasheet Fusetron™ FRS-R Cartridge, Non-Standard Bulk Active Requires Holder Cartridge 125A 600 VAC 300 VDC Slow Blow Electrical, Industrial - RK5 CE, CSA, UL - 200kA AC, 20kA DC 1.610" Dia x 9.630" L (40.89mm x 244.60mm) - -
PSR030FL0550Z Littelfuse Inc.

PSR030FL0550Z

FUSE SQUARE 550A 700VAC/600VDC

Littelfuse Inc.

3,131 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 550A 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 1.693" W x 1.929" H (50.00mm x 43.00mm x 49.00mm) - -
PSR031DL0250Z Littelfuse Inc.

PSR031DL0250Z

FUSE SQUARE 250A 700VAC/600VDC

Littelfuse Inc.

6,907 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 250A 700 VAC 600 VDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.898" L x 2.028" W x 2.264" H (48.20mm x 51.50mm x 57.50mm) - -
PSR070FS0050Z Littelfuse Inc.

PSR070FS0050Z

FUSE SQUARE 50A 1.3KVAC/1KVDC

Littelfuse Inc.

4,672 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 50A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.913" L x 1.693" W x 1.929" H (74.00mm x 43.00mm x 49.00mm) - -
PSR070FS0100Z Littelfuse Inc.

PSR070FS0100Z

FUSE SQUARE 100A 1.3KVAC/1KVDC

Littelfuse Inc.

7,141 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 100A 1.3 kVAC 1 kVDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.913" L x 1.693" W x 1.929" H (74.00mm x 43.00mm x 49.00mm) - -
PSR071FS0200Z Littelfuse Inc.

PSR071FS0200Z

FUSE SQUARE 200A 1.3KVAC/1KVDC

Littelfuse Inc.

4,987 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 200A 1.3 kVAC 1 kVDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.913" L x 2.028" W x 2.264" H (74.00mm x 51.50mm x 57.50mm) - -
PSR070FL0100Z Littelfuse Inc.

PSR070FL0100Z

FUSE SQUARE 100A 1.3KVAC/1KVDC

Littelfuse Inc.

4,981 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 100A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.913" L x 1.693" W x 1.929" H (74.00mm x 43.00mm x 49.00mm) - -
PSR071UL0250Z Littelfuse Inc.

PSR071UL0250Z

FUSE SQUARE 250A 1.3KVAC/1KVDC

Littelfuse Inc.

9,511 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 250A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.843" L x 2.028" W x 2.264" H (72.20mm x 51.50mm x 57.50mm) - -
PSR070FL0315Z Littelfuse Inc.

PSR070FL0315Z

FUSE SQUARE 315A 1.3KVAC/1KVDC

Littelfuse Inc.

6,593 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 315A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.913" L x 1.693" W x 1.929" H (74.00mm x 43.00mm x 49.00mm) - -
PSR031FL0700Z Littelfuse Inc.

PSR031FL0700Z

FUSE SQUARE 700A 700VAC/600VDC

Littelfuse Inc.

2,433 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 700A 700 VAC 600 VDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) - -
PSR031FL0800Z Littelfuse Inc.

PSR031FL0800Z

FUSE SQUARE 800A 700VAC/600VDC

Littelfuse Inc.

6,386 -
Datasheet POWR-SPEED® PSR - Box Active Bolt Mount Square 800A 700 VAC 600 VDC Fast Blow Semiconductors Indicating - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 1.969" L x 2.028" W x 2.264" H (50.00mm x 51.50mm x 57.50mm) - -
PSR032FS1000Z Littelfuse Inc.

PSR032FS1000Z

FUSE SQUARE 1KA 700VAC/600VDC

Littelfuse Inc.

6,631 -
Datasheet POWR-SPEED® PSR - Bulk Active Bolt Mount Square 1kA 700 VAC 600 VDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 200kA AC, 150kA DC 2.008" L x 2.362" W x 2.598" H (51.00mm x 60.00mm x 66.00mm) - -
PSR070UL0400Z Littelfuse Inc.

PSR070UL0400Z

FUSES POWR-SPEED

Littelfuse Inc.

3,997 -
Datasheet POWR-SPEED® PSR Rectangular, Blade Bulk Active Bolt Mount Square 400A 1.2 kVAC 900 VDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.823" L x 1.693" W x 1.929" H (71.70mm x 43.00mm x 49.00mm) - -
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Electrical, Specialty Fuses FAQ

Common questions about selecting, comparing and sourcing Electrical, Specialty Fuses components through Winsun (HK) Electronics.

What should I check when selecting Electrical, Specialty Fuses components?

Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

Can Winsun help source specific Electrical, Specialty Fuses part numbers?

Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

Do you support shortage, obsolete or hard-to-find Electrical, Specialty Fuses parts?

Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

How do I request a quote for Electrical, Specialty Fuses components?

Submit an RFQ with the part number, manufacturer, quantity and target delivery requirement. Our sales team will review your request and follow up with current sourcing information.