450 A Fuses 242

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Part RoHS Manufacturer Circuit Protection Type Mounting Feature Rated AC Voltage Rated DC Voltage Rated Current Terminal Shape Nominal Joule Integral Minimum Operating Temperature Terminal Finish Rated Breaking Capacity Manufacturer Series Trip Time/Delay Additional Features Pre Arcing Rating (A2/s) Packing Method Body Length/Diameter Body Width Fuse Class JESD-609 Code Rated Voltage Resistance Minimum Pre Arcing Time Fuse Size Built-in Features Dimensions Body Height Reference Standard Maximum Operating Temperature Blow Characteristic

LA070URD31LI0450

Littelfuse

Electric Fuse

Inline/Holder

700 V

450 A

Tab/Blade

26.5 J

200 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 1.874 in (51 x 51 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

FLSR450

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

450 A

200 kA

FLSR

Rated Breaking Capacity at 300 VDC: 20000 A

3.094 in (78.6 mm)

13.374 in (339.7 mm)

CSA; UL

Time Delay

PSR031FL0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Threaded

22.457 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.028 in (51.5 mm)

1.969 in (50 mm)

Indicator

3.402 in (86.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR071FL0450Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

450 A

Threaded

55.915 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.913 in (74 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

LA070URD30LI0450

Littelfuse

Electric Fuse

Inline/Holder

700 V

450 A

Tab/Blade

26 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

450-24R-2C-5.5XS

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

1.95 kA

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

RLS450

Littelfuse

Electric Fuse

Inline/Holder

600 V

450 A

Tab/Blade

10 kA

3.094 in (78.6 mm)

13.374 in (339.7 mm)

CE; CSA; UL

PSR030US0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Tab/Blade

23.133 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.878 in (47.7 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

0298450.UXT

Littelfuse

Electric Fuse

Inline/Holder

32 V

450 A

Tab/Blade

1.05 MJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

Mega

0.421 in (10.7 mm)

125 °C (257 °F)

Time Delay

450-24R-2C-5.5W

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

1.95 kA

Part Number With Hookeye Attachment

6.38 in (162.05 mm)

6.38 x 15.875 in (162.05 x 403.23 mm)

15.875 in (403.23 mm)

Medium

LA130URD71TTI0450

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

450 A

End Cap

47 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

450E-2C-2.75L

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

450 A

End Cap

80 kA

450E-2C-2.75

6.378 in (162 mm)

6.378 x 10.874 in (162 x 276.2 mm)

10.874 in (276.2 mm)

0298450.TXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

450 A

Tab/Blade

-40 °C (-40 °F)

2 kA

Bulk

1.15 in (29.21 mm)

0.75 in (19.05 mm)

1.15 x 0.75 x 0.42 in (29.21 x 19.05 x 10.67 mm)

0.42 in (10.67 mm)

125 °C (257 °F)

450-24R-2C-2.75W

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

450 A

End Cap

1.95 kA

Part Number With Hookeye Attachment

6.38 in (162.05 mm)

6.38 x 10.875 in (162.05 x 276.23 mm)

10.875 in (276.23 mm)

Medium

450E2C2.75

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

450 A

End Cap

80 kA

10 m

6.382 in (162.1 mm)

Striker

6.38 x 10.875 in (162.05 x 276.23 mm)

10.874 in (276.2 mm)

Medium

LCU450ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

80 kA

LCU

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

RLN450

Littelfuse

Electric Fuse

Inline/Holder

250 V

450 A

Tab/Blade

10 kA

2.594 in (65.9 mm)

10.374 in (263.5 mm)

CE; CSA; UL

0JLS450.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

450 A

Tab/Blade

200 kA

Bulk

2.5 in (63.5 mm)

J

600 V

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CE; CSA; QPL; UL

Fast

PSR032FL0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Threaded

15.535 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

450-24R-2C-8.25W

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

450 A

End Cap

1.91 kA

Part Number With Hookeye Attachment

6.38 in (162.05 mm)

6.38 x 15.875 in (162.05 x 403.23 mm)

15.875 in (403.23 mm)

Medium

PSR073UL0450X

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

450 A

Tab/Blade

29.834 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

SPFJ450

Littelfuse

Electric Fuse

Inline/Holder

600 V

1 KV

450 A

Tab/Blade

565.333 kJ

200 kA

14 m

Rated Breaking Capacity at 1000 VDC: 20000 A

2.5 in (63.5 mm)

Midget

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CE; IEC; UL; VDE

PSR030FS0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Threaded

23.133 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.969 in (50 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA130URD72TTI0450

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

450 A

End Cap

44 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

JLLS450.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

2.063 in (52.4 mm)

600 V

1.764 in (44.8 mm)

CE; CSA; UL

Fast

PSR073FS0450Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

450 A

Threaded

29.834 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

IDSR450

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

3.043 in (77.3 mm)

3 x 13.374 in (76.2 x 339.7 mm)

13.374 in (339.7 mm)

CSA; UL

Time Delay

NLN450

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

450 A

Tab/Blade

50 kA

Rated Breaking Capacity at 250 VDC; 50000

2.594 in (65.9 mm)

2.594 x 5.87 in (65.9 x 149.1 mm)

5.87 in (149.1 mm)

CSA; UL

450E2C5.5

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

80 kA

10 m

6.382 in (162.1 mm)

Striker

6.38 x 15.875 in (162.05 x 403.23 mm)

15.874 in (403.2 mm)

Medium

PSR032FS0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Threaded

15.535 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

KLC450

Littelfuse

Electric Fuse

Inline/Holder

600 V

450 A

Tab/Blade

-55 °C (-67 °F)

200 kA

2.5 in (63.5 mm)

2.5 x 2.843 in (63.5 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

125 °C (257 °F)

Very Fast

NLS450

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

450 A

Tab/Blade

50 kA

Rated Breaking Capacity at 500 VDC; 50000

3.094 in (78.6 mm)

3.094 x 8.87 in (78.6 x 225.3 mm)

8.87 in (225.3 mm)

CSA; UL

JTD450ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2.5 in (63.5 mm)

Indicator

2.626 x 3.752 in (66.7 x 95.3 mm)

3.752 in (95.3 mm)

CSA; UL

Time Delay

LCY450E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

80 kA

LCY

6.38 in (162.05 mm)

6.38 x 15.875 in (162.05 x 403.23 mm)

15.875 in (403.23 mm)

Medium

KLW450

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

450 A

Tab/Blade

100 kA

KLW

Rated Breaking Capacity at 100 VDC: 20000 A

1 in (25.4 mm)

1 x 1.157 in (25.4 x 29.4 mm)

1.157 in (29.4 mm)

CSA; UL

Fast

PSR033US0450X

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Tab/Blade

13.6 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

1.976 in (50.2 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

0298450.UXP-1M8

Littelfuse

Electric Fuse

Inline/Holder

32 V

450 A

Tab/Blade

1.324 MJ

-40 °C (-40 °F)

Tin

2 kA

1.15 in (29.2 mm)

0.75 in (19.05 mm)

e3

32 V

Mega

0.389 in (9.89 mm)

125 °C (257 °F)

Time Delay

LLSRK4.50

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.094 in (78.6 mm)

3.094 x 13.374 in (78.6 x 339.7 mm)

13.374 in (339.7 mm)

CSA; UL

Time Delay

PSX1XLDB0450X

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

450 A

Tab/Blade

149.336 kJ

-55 °C (-67 °F)

250 kA

Bulk

4.988 in (126.7 mm)

2.028 in (51.5 mm)

Indicator

2.028 in (51.5 mm)

CUL; UL

125 °C (257 °F)

Fast

0888450.U-NH

Littelfuse

Electric Fuse

Inline/Holder

120 V

450 A

Tab/Blade

1.579 MJ

-40 °C (-40 °F)

2.5 kA

100 ms

1.15 in (29.2 mm)

0.748 in (19 mm)

Mega

0.39 in (9.9 mm)

125 °C (257 °F)

LA15QS450-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

450 A

Tab/Blade

50 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.13 in (28.7 mm)

1.13 x 1.161 in (28.7 x 29.5 mm)

1.161 in (29.5 mm)

UL

Very Fast

LLSRK450ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.094 in (78.6 mm)

Indicator

3.094 x 13.374 in (78.6 x 339.7 mm)

13.374 in (339.7 mm)

CSA; UL

Time Delay

450E-2C-2.75S

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

450 A

End Cap

80 kA

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 10.875 in (162.05 x 276.23 mm)

10.875 in (276.23 mm)

Medium

JLLN450

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

450 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.594 in (40.5 mm)

1.594 x 0.874 in (40.5 x 22.2 mm)

3.063 in (77.8 mm)

CE; CSA; CUL; UL

Fast

450E-2C-5.5L

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

80 kA

450E-2C-5.5

16.378 in (416 mm)

16.378 x 15.874 in (416 x 403.2 mm)

15.874 in (403.2 mm)

PSR030UL0450Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

450 A

Tab/Blade

23.133 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.878 in (47.7 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LCU450E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

80 kA

LCU

6.38 in (162.05 mm)

6.38 x 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

450-24R-2C-5.5S

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

450 A

End Cap

1.95 kA

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 15.875 in (162.05 x 403.23 mm)

15.875 in (403.23 mm)

Medium

Fuses

A fuse is an electrical safety device that is designed to protect an electrical circuit from damage caused by overcurrent. Fuses are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.

A fuse typically consists of a metal wire or filament that is enclosed in a fuse body, which is designed to protect the wire from damage. The fuse is connected in series with the electrical circuit, and when the current flowing through the circuit exceeds a preset level, the wire in the fuse will melt or blow, which opens the circuit and prevents further damage to the electrical system.

Fuses are available in a variety of types and sizes, and they can be classified based on their current rating, voltage rating, and speed of operation. Some common types of fuses include cartridge fuses, blade fuses, and plug fuses.

In addition to protecting electrical systems from overcurrent, fuses can also be used to protect electrical equipment and machinery from damage caused by short circuits or other types of electrical faults. They are a cost-effective and reliable method of electrical protection, and they are widely used in a variety of electrical applications.