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Electrical, Specialty Fuses

Category Introduction

Products in this family are used for over-current fault protection, and function on the basis of current flow in excess of a desired maximum causing the destruction of a conductive element within the device. They are distinguished from common fuses by one of several factors; bearing a non-supplementary classification under the UL248 standard, certification for use in hazardous or explosive environments, or a form factor other than those commonly encountered in products used for supplementary equipment protection such as those with an indication function or fusible cable links, and fuses designated for specific applications such as protection of telecommunications circuits or multimeters.

Product List

16687 Items
PDF Mfr Part # Quantity
Available		 UnitPrice RFQ Series Packaging Product StatusMounting TypeFuse TypeCurrent Rating (Amps)Voltage Rating - ACVoltage Rating - DCResponse TimeApplicationsFeaturesClassApproval AgencyOperating TemperatureBreaking Capacity @ Rated VoltagePackage / CaseSize / Dimension
L50QS225.V
L50QS225.V
FUSE CRTRDGE 225A 500VAC/VDC
Littelfuse Inc.
 7 $104.30
POWR-SPEED™ L50QS Box ActiveBolt MountCartridge225A500 V500 VFast BlowSemiconductors--CE, cURus, UR-55°C ~ 125°C200kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.500" Dia x 4.343" L (38.10mm x 110.31mm)
L50QS275.V
L50QS275.V
FUSE CRTRDGE 275A 500VAC/VDC
Littelfuse Inc.
 4 $105.36
POWR-SPEED™ L50QS Box ActiveBolt MountCartridge275A500 V500 VFast BlowSemiconductors--CE, cURus, UR-55°C ~ 125°C200kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.500" Dia x 4.343" L (38.10mm x 110.31mm)
L50QS350.V
L50QS350.V
FUSE CRTRDGE 350A 500VAC/VDC
Littelfuse Inc.
 10 $105.06
POWR-SPEED™ L50QS Box ActiveBolt MountCartridge350A500 V500 VFast BlowSemiconductors--CE, cURus, UR-55°C ~ 125°C200kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.500" Dia x 4.343" L (38.10mm x 110.31mm)
FLSR200.XXID
FLSR200.XXID
FUSE CRTRDGE 200A 600VAC/300VDC
Littelfuse Inc.
 2 $109.89
POWR-GARD® FLSR_ID Bulk ActiveHolderCartridge200A600 V300 VSlow BlowElectrical, IndustrialIndicatingRK5CE, CSA, QPL, UL-200kA AC, 20kA DCCylindrical, Blade Terminals1.843" Dia x 9.626" L (46.80mm x 244.50mm)
FLSR125.XXID
FLSR125.XXID
FUSE CRTRDGE 125A 600VAC/300VDC
Littelfuse Inc.
 3 $110.69
POWR-GARD® FLSR_ID Bulk ActiveHolderCartridge125A600 V300 VSlow BlowElectrical, IndustrialIndicatingRK5CE, CSA, QPL, UL-200kA AC, 20kA DCCylindrical, Blade Terminals1.843" Dia x 9.626" L (46.80mm x 244.50mm)
PF-FB1-175
PF-FB1-175
FUSE BOLT MNT 800VAC 800VDC 175A
Bourns Inc.
 6 $110.51
POWrFuse™ PF-F Box ActiveBolt MountCartridge175A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB2-175
PF-FB2-175
FUSE BOLT MNT 800VAC 800VDC 175A
Bourns Inc.
 3 $110.10
POWrFuse™ PF-F Box ActiveBolt MountCartridge175A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB2-160
PF-FB2-160
FUSE BOLT MNT 800VAC 800VDC 160A
Bourns Inc.
 8 $112.34
POWrFuse™ PF-F Box ActiveBolt MountCartridge160A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB2-125
PF-FB2-125
FUSE BOLT MNT 800VAC 800VDC 125A
Bourns Inc.
 3 $111.00
POWrFuse™ PF-F Box ActiveBolt MountCartridge125A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)0.949" Dia x 2.598" L (24.10mm x 66.00mm)
PF-FB1-160
PF-FB1-160
FUSE BOLT MNT 800VAC 800VDC 160A
Bourns Inc.
 9 $112.87
POWrFuse™ PF-F Box ActiveBolt MountCartridge160A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB1-200
PF-FB1-200
FUSE BOLT MNT 800VAC 800VDC 200A
Bourns Inc.
 7 $113.06
POWrFuse™ PF-F Box ActiveBolt MountCartridge200A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB2-150
PF-FB2-150
FUSE BOLT MNT 800VAC 800VDC 150A
Bourns Inc.
 2 $109.85
POWrFuse™ PF-F Box ActiveBolt MountCartridge150A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)0.949" Dia x 2.598" L (24.10mm x 66.00mm)
PF-FB2-200
PF-FB2-200
FUSE BOLT MNT 800VAC 800VDC 200A
Bourns Inc.
 9 $111.84
POWrFuse™ PF-F Box ActiveBolt MountCartridge200A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.386" Dia x 2.724" L (35.20mm x 69.20mm)
PF-FB1-150
PF-FB1-150
FUSE BOLT MNT 800VAC 800VDC 150A
Bourns Inc.
 6 $110.57
POWrFuse™ PF-F Box ActiveBolt MountCartridge150A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)0.949" Dia x 2.717" L (24.10mm x 69.00mm)
PF-FB1-125
PF-FB1-125
FUSE BOLT MNT 800VAC 800VDC 125A
Bourns Inc.
 4 $112.65
POWrFuse™ PF-F Box ActiveBolt MountCartridge125A800 V800 V-Semiconductors-aRcURus-55°C ~ 125°C100kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)0.949" Dia x 2.717" L (24.10mm x 69.00mm)
FLNR400.XXID
FLNR400.XXID
FUSE CRTRDGE 400A 250VAC/125VDC
Littelfuse Inc.
 8 $118.85
POWR-GARD® FLNR_ID Bulk ActiveHolderCartridge400A250 V125 VSlow BlowElectrical, IndustrialIndicatingRK5CE, CSA, QPL, UL-200kA AC, 20kA DCCylindrical, Blade Terminals2.094" Dia x 8.626" L (53.19mm x 219.10mm)
L17T800.V
L17T800.V
FUSE CRTRDGE 800A 170VDC CYLINDR
Littelfuse Inc.
 2 $119.27
POWR-GARD® L17T Bulk ActiveBolt MountCartridge800A-170 VFast BlowTelecom--CE, CSA, UR-100kACylindrical, Blade Terminal (Bolt)1.500" Dia x 1.252" L (38.10mm x 31.80mm)
KLNR080.V
KLNR080.V
FUSE CARTRIDGE 80A 250VAC/125VDC
Littelfuse Inc.
 7 $120.22
POWR-GARD® KLNR Bulk ActiveHolderCartridge80A250 V125 VFast BlowElectrical, Industrial-RK1CE, CSA, UL-200kA AC, 20kA DCCylindrical, Blade Terminals1.063" Dia x 5.874" L (27.00mm x 149.20mm)
L70QS125.V
L70QS125.V
FUSE CRTRDGE 125A 700VAC/700VDC
Littelfuse Inc.
 2 $122.22
POWR-SPEED™ L70QS Box ActiveBolt MountCartridge125A700 V700 VFast BlowSemiconductors--CE, cURus, UR-55°C ~ 125°C200kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.218" Dia x 5.085" L (30.94mm x 129.16mm)
L70QS175.V
L70QS175.V
FUSE CRTRDGE 175A 700VAC/700VDC
Littelfuse Inc.
 4 $122.47
POWR-SPEED™ L70QS Box ActiveBolt MountCartridge175A700 V700 VFast BlowSemiconductors--CE, cURus, UR-55°C ~ 125°C200kA AC, 50kA DCCylindrical, Blade Terminal (Bolt)1.218" Dia x 5.085" L (30.94mm x 129.16mm)