Electrical, Specialty Fuses

Manufacturer 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

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Electrical, Specialty Fuses

Electrical and Specialty Fuses are circuit protection components designed to interrupt current during overload, short-circuit or fault conditions in electrical and electronic systems. They are widely used in industrial equipment, power distribution, motor drives, renewable energy systems, communication equipment, automation systems, transportation electronics, power supplies and control panels.

This category includes industrial fuses, specialty fuses, power fuses, cartridge fuses, high-voltage fuses, fast-acting fuses, time-delay fuses, semiconductor protection fuses and related overcurrent protection devices. These components are commonly selected based on current rating, voltage rating, breaking capacity, response speed, fuse size, mounting method, safety approvals and application requirements.

TomatoElec supplies original Electrical and Specialty Fuses from recognized manufacturers such as Littelfuse, Eaton, Bel Fuse, Schurter, Mersen, SIBA, Bourns, TE Connectivity and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.

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
PSR031UL0250Z

PSR031UL0250Z

FUSE SQUARE 250A 700VAC/600VDC

Littelfuse Inc.

3,104 -
RFQ
PSR031UL0250Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 250A 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) - -
PSR031UL0350Z

PSR031UL0350Z

FUSE SQUARE 350A 700VAC/600VDC

Littelfuse Inc.

2,373 -
RFQ
PSR031UL0350Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 350A 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) - -
FWH-300A

FWH-300A

FUSE CARTRIDGE 300A 500VAC/VDC

Eaton - Bussmann Electrical Division

8,552 -
RFQ
FWH-300A

Datasheet

FWH Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 300A 500 VAC 500 VDC - Electrical, Industrial - - CE, CSA, UR - 200kA AC, 50kA DC 1.500" Dia x 4.340" L (38.10mm x 110.24mm) - -
FWH-325A

FWH-325A

FUSE CARTRIDGE 325A 500VAC/VDC

Eaton - Bussmann Electrical Division

9,643 -
RFQ
FWH-325A

Datasheet

FWH Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 325A 500 VAC 500 VDC - Electrical, Industrial - - CE, CSA, UR - 200kA AC, 50kA DC 1.500" Dia x 4.340" L (38.10mm x 110.24mm) - -
FRS-R-110

FRS-R-110

FUSE CRTRDGE 110A 600VAC/300VDC

Eaton - Bussmann Electrical Division

4,561 -
RFQ
FRS-R-110

Datasheet

Fusetron™ FRS-R Cartridge, Non-Standard Bulk Active Requires Holder Cartridge 110A 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) - -
FRS-R-175

FRS-R-175

FUSE CRTRDGE 175A 600VAC/300VDC

Eaton - Bussmann Electrical Division

7,875 -
RFQ
FRS-R-175

Datasheet

Fusetron™ FRS-R Cartridge, Non-Standard Bulk Active Requires Holder Cartridge 175A 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) - -
PSR031DS0450Z

PSR031DS0450Z

FUSE SQUARE 450A 700VAC/600VDC

Littelfuse Inc.

7,692 -
RFQ
PSR031DS0450Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 450A 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) - -
PSR031US0500Z

PSR031US0500Z

FUSE SQUARE 500A 700VAC/600VDC

Littelfuse Inc.

4,834 -
RFQ
PSR031US0500Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 500A 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) - -
PSR031US0630Z

PSR031US0630Z

FUSE SQUARE 630A 700VAC/600VDC

Littelfuse Inc.

7,097 -
RFQ
PSR031US0630Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 630A 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) - -
PSR031DS0630Z

PSR031DS0630Z

FUSE SQUARE 630A 700VAC/600VDC

Littelfuse Inc.

2,982 -
RFQ
PSR031DS0630Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 630A 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) - -
PSR031US0450Z

PSR031US0450Z

FUSE SQUARE 450A 700VAC/600VDC

Littelfuse Inc.

7,618 -
RFQ
PSR031US0450Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 450A 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) - -
PSR031DS0500Z

PSR031DS0500Z

FUSE SQUARE 500A 700VAC/600VDC

Littelfuse Inc.

3,147 -
RFQ
PSR031DS0500Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 500A 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) - -
PSR031DS0550Z

PSR031DS0550Z

FUSE SQUARE 550A 700VAC/600VDC

Littelfuse Inc.

6,881 -
RFQ
PSR031DS0550Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 550A 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) - -
PSR031US0550Z

PSR031US0550Z

FUSE SQUARE 550A 700VAC/600VDC

Littelfuse Inc.

6,963 -
RFQ
PSR031US0550Z

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 550A 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) - -
KWN-R-100

KWN-R-100

FUSE LIMITRON FAST ACTING

Eaton - Bussmann Electrical Division

4,172 -
RFQ

-

* - Bulk Obsolete - - - - - - - - - - - - - - -
KWN-R-70

KWN-R-70

FUSE LIMITRON FAST ACTING

Eaton - Bussmann Electrical Division

5,973 -
RFQ

-

* - Bulk Obsolete - - - - - - - - - - - - - - -
KWN-R-80

KWN-R-80

FUSE LIMITRON FAST ACTING

Eaton - Bussmann Electrical Division

7,347 -
RFQ

-

* - Bulk Obsolete - - - - - - - - - - - - - - -
KWN-R-90

KWN-R-90

FUSE LIMITRON FAST ACTING

Eaton - Bussmann Electrical Division

8,820 -
RFQ

-

* - Bulk Obsolete - - - - - - - - - - - - - - -
170M1761

170M1761

FUSE SQUARE 315A 690V RECT

Eaton - Bussmann Electrical Division

4,057 -
RFQ
170M1761

Datasheet

- Rectangular, Blade Bulk Active Bolt Mount Square 315A - - - - - - UL - 50kA 2.126" L x 1.429" W x 0.945" H (54.00mm x 36.30mm x 24.00mm) - -
170M3019

170M3019

FUSE SQUARE 400A 700VAC RECT

Eaton - Bussmann Electrical Division

7,827 -
RFQ
170M3019

Datasheet

- Rectangular, Blade Bulk Active Bolt Mount Square 400A 700 VAC - - Electrical, Industrial Indicating - CE, CSA, UR - 200kA 1.969" L x 1.772" W x 2.283" H (50.00mm x 45.00mm x 58.00mm) - -
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