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 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
Package / Case
Size / Dimension
PSR031DL0250Z
FUSE SQUARE 250A 700VAC/600VDC
Littelfuse Inc.
2
$281.12
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
250A
700 V
600 V
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)
PSR031FL0700Z
FUSE SQUARE 700A 700VAC/600VDC
Littelfuse Inc.
4
$310.46
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
700A
700 V
600 V
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)
PSR070FL0063Z
FUSE SQUARE 63A 1.3KVAC/1KVDC
Littelfuse Inc.
3
$327.90
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
63A
1.3 kV
1 kV
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)
PSR070FL0080Z
FUSE SQUARE 80A 1.3KVAC/1KVDC
Littelfuse Inc.
3
$321.10
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
80A
1.3 kV
1 kV
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)
PSR070UL0400Z
FUSES POWR-SPEED
Littelfuse Inc.
2
$331.25
POWR-SPEED® PSR
Bulk
Active
Bolt Mount
Square
400A
1.2 kV
900 V
Fast Blow
Semiconductors
Indicating
-
CE, cURus, UL
-55°C ~ 125°C
100kA AC, 150kA DC
Rectangular, Blade
2.823" L x 1.693" W x 1.929" H (71.70mm x 43.00mm x 49.00mm)
PSR031FL0800Z
FUSE SQUARE 800A 700VAC/600VDC
Littelfuse Inc.
2
$338.01
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
800A
700 V
600 V
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)
L70QS600.X
FUSE CRTRDGE 600A 700VAC/700VDC
Littelfuse Inc.
2
$337.80
POWR-SPEED™ L70QS
Box
Active
Bolt Mount
Cartridge
600A
700 V
700 V
Fast Blow
Semiconductors
-
-
CE, cURus, UR
-55°C ~ 125°C
200kA AC, 50kA DC
Cylindrical, Blade Terminal (Bolt)
2.000" Dia x 7.090" L (50.80mm x 180.08mm)
L70QS500.X
FUSE CRTRDGE 500A 700VAC/700VDC
Littelfuse Inc.
3
$334.91
POWR-SPEED™ L70QS
Box
Active
Bolt Mount
Cartridge
500A
700 V
700 V
Fast Blow
Semiconductors
-
-
CE, cURus, UR
-55°C ~ 125°C
200kA AC, 50kA DC
Cylindrical, Blade Terminal (Bolt)
2.000" Dia x 7.090" L (50.80mm x 180.08mm)
L70QS450.X
FUSE CRTRDGE 450A 700VAC/700VDC
Littelfuse Inc.
2
$334.54
POWR-SPEED™ L70QS
Box
Active
Bolt Mount
Cartridge
450A
700 V
700 V
Fast Blow
Semiconductors
-
-
CE, cURus, UR
-55°C ~ 125°C
200kA AC, 50kA DC
Cylindrical, Blade Terminal (Bolt)
2.000" Dia x 7.090" L (50.80mm x 180.08mm)
PSR070FL0315Z
FUSE SQUARE 315A 1.3KVAC/1KVDC
Littelfuse Inc.
3
$368.25
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
315A
1.3 kV
1 kV
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)
PSR071FL0400Z
FUSE SQUARE 400A 1.3KVAC/1KVDC
Littelfuse Inc.
4
$379.01
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
400A
1.3 kV
1 kV
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)
PSR032FL1100Z
FUSE SQUARE 1.1KA 700VAC/600VDC
Littelfuse Inc.
2
$471.99
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
1.1kA
700 V
600 V
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)
PSR033FL1250Z
FUSE SQUARE 1.25KA 700VAC/600VDC
Littelfuse Inc.
2
$491.44
POWR-SPEED® PSR
Box
Active
Bolt Mount
Square
1.25kA
700 V
600 V
Fast Blow
Semiconductors
-
-
CCC, CE, cURus, UL
-55°C ~ 125°C
200kA AC, 150kA DC
-
2.008" L x 2.894" W x 3.130" H (51.00mm x 73.50mm x 79.50mm)
PSX1XLDB0125X
FUSE SEMI 1500VDC 1XL SIZE 125A
Littelfuse Inc.
3
$546.35
POWR-SPEED® PSX
Box
Active
Bolt Mount
Square
125A
-
1.5 kV
Fast Blow
Semiconductors
Indicating
-
CE, cURus, UL
-55°C ~ 125°C
200kA
Rectangular, Blade
4.988" L x 2.028" W x 2.264" H (126.70mm x 51.50mm x 57.50mm)
PSX1XLDB0200X
FUSE SEMI 1500VDC 1XL SIZE 200A
Littelfuse Inc.
2
$544.94
POWR-SPEED® PSX
Box
Active
Bolt Mount
Square
200A
-
1.5 kV
Fast Blow
Semiconductors
Indicating
-
CE, cURus, UL
-55°C ~ 125°C
200kA
Rectangular, Blade
4.988" L x 2.028" W x 2.264" H (126.70mm x 51.50mm x 57.50mm)
KLLU800.X
FUSE CRTRDGE 800A 600VAC/300VDC
Littelfuse Inc.
3
$640.30
POWR-GARD® KLLU
Bulk
Active
Bolt Mount
Cartridge
800A
600 V
300 V
Slow Blow
Electrical, Industrial
-
L
CE, CSA, UL
-
200kA AC, 20kA DC
Cylindrical, Blade Terminal (Bolt)
2.500" Dia x 3.752" L (63.50mm x 95.30mm)
PSX1XLFL0400X
FUSE SEMI 1500VDC 1XL SIZE 400A
Littelfuse Inc.
3
$689.36
POWR-SPEED® PSX
Box
Active
Bolt Mount
Square
400A
-
1.5 kV
Fast Blow
Semiconductors
Indicating
-
CE, cURus, UL
-55°C ~ 125°C
200kA
Rectangular
4.988" L x 2.028" W x 2.264" H (126.70mm x 51.50mm x 57.50mm)
