250 A Fuses 265

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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

L60S250

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 A

Tab/Blade

-55 °C (-67 °F)

200 kA

1.579 in (40.1 mm)

1.579 x 2.906 in (40.1 x 73.8 mm)

2.906 in (73.8 mm)

CSA; UL

125 °C (257 °F)

Very Fast

5NLE2250E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

End Cap

80 kA

10 m

6.382 in (162.1 mm)

Striker

6.38 x 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

IDSR250

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

2.5 x 11.626 in (63.5 x 295.3 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

0298250.UXP-2M6

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

176.2 kJ

-40 °C (-40 °F)

Tin

2 kA

100 ms

1.15 in (29.2 mm)

0.75 in (19.05 mm)

e3

32 V

Mega

0.381 in (9.69 mm)

125 °C (257 °F)

Time Delay

L50S250

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 450 VDC: 20000 A

1.5 in (38.1 mm)

1.5 x 2.094 in (38.1 x 53.2 mm)

2.094 in (53.2 mm)

CE; CSA; UL

Very Fast

LA15QS250-4TI

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

250 A

Tab/Blade

15 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.13 in (28.7 mm)

Indicator

1.13 x 1.161 in (28.7 x 29.5 mm)

1.161 in (29.5 mm)

UL

Very Fast

LA15QS250-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

250 A

Tab/Blade

15 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

0898250.U-2M6

Littelfuse

Electric Fuse

Inline/Holder

70 V

250 A

Tab/Blade

220 kJ

-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)

Time Delay

0998250.UX-1M8

Littelfuse

Electric Fuse

Inline/Holder

70 V

250 A

Tab/Blade

220 kJ

-40 °C (-40 °F)

Tin

2.5 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

e3

70 V

Mega

0.39 in (9.9 mm)

ISO

125 °C (257 °F)

298250

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

389 kJ

2 kA

Rated Breaking Capacity at 32 VDC: 2000 A

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)

Slow

LA130URD71LLI0250

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

250 A

Tab/Blade

8.9 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

LA070URD31KI0250

Littelfuse

Electric Fuse

Inline/Holder

700 V

250 A

Tab/Blade

4.7 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

L13S250

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

250 A

Tab/Blade

100 kA

L13S

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

LA070URD31TTI0250

Littelfuse

Electric Fuse

Inline/Holder

700 V

250 A

End Cap

4.7 J

200 kA

2 in (50.8 mm)

2 in (50.8 mm)

Indicator

2 x 2 x 1.929 in (50.8 x 50.8 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

PSR070UL0250Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

250 A

Tab/Blade

8.629 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.823 in (71.7 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA070URD30LI0250

Littelfuse

Electric Fuse

Inline/Holder

700 V

250 A

Tab/Blade

5.8 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

L17T250

Littelfuse

Electric Fuse

Inline/Holder

170 V

250 A

Tab/Blade

100 kA

Bulk

1 in (25.4 mm)

1 x 1.157 in (25.4 x 29.4 mm)

1.157 in (29.4 mm)

CSA; UL

0298250.UXP-1M8

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

176.2 kJ

-40 °C (-40 °F)

Tin

2 kA

100 ms

1.15 in (29.2 mm)

0.75 in (19.05 mm)

e3

32 V

Mega

0.381 in (9.69 mm)

125 °C (257 °F)

Time Delay

LA130URD70LI0250

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

250 A

Tab/Blade

9.6 J

100 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 2.854 in (40 x 40 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

NH1M250

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

250 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.559 in (65 mm)

1.575 in (40 mm)

Indicator

2.559 x 1.575 x 2.835 in (65 x 40 x 72 mm)

2.835 in (72 mm)

VDE

250E-2CL-5.5

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

Tab/Blade

80 kA

7.94 in (201.68 mm)

7.94 x 16.13 in (201.68 x 409.7 mm)

16.13 in (409.7 mm)

Medium

PSR072FL0250Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

250 A

Threaded

7.737 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

IDSR250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

3998250.ZXM10

Littelfuse

Electric Fuse

Surface Mount

80 V

250 A

Wraparound

160.9 kJ

-40 °C (-40 °F)

2 kA

100 ms

1.232 in (31.3 mm)

0.984 in (25 mm)

0.63 in (16 mm)

125 °C (257 °F)

CNN250E

Littelfuse

Electric Fuse

Inline/Holder

125 V

80 V

250 A

Tab/Blade

2.7 kA

3.181 in (80.8 mm)

3.18 in (80.77 mm)

CUL; UL

Very Fast

250E-2C-5.5S

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

End Cap

80 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

LCY250ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

End Cap

80 kA

LCY

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

8NLE2250E

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

End Cap

80 kA

10 m

6.382 in (162.1 mm)

Striker

6.38 x 17.87 in (162.05 x 453.89 mm)

17.875 in (454.03 mm)

Medium

0LDC250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

250 A

Tab/Blade

200 kA

16 ms

Rated Breaking Capacity at 600 VDC: 50000 A

2.5 in (63.5 mm)

L

600 V

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CE, UL

Fast

0898250.U-NH

Littelfuse

Electric Fuse

Inline/Holder

70 V

250 A

Tab/Blade

220 kJ

-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)

Time Delay

0888250.U-2M8

Littelfuse

Electric Fuse

Inline/Holder

120 V

250 A

Tab/Blade

223.2 kJ

-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)

250E-2C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

End Cap

80 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

0298250.UXT

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

389 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

32 V

Mega

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

KLC250

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 A

Tab/Blade

-55 °C (-67 °F)

200 kA

2 in (50.8 mm)

2 x 2.843 in (50.8 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

125 °C (257 °F)

Very Fast

250E2C8.25

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 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

5NLE2-250ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

End Cap

80 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

LA100P250-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

250 A

Tab/Blade

110 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2 in (50.8 mm)

2 x 3.469 in (50.8 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

153.5395.6252

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

292.5 kJ

-40 °C (-40 °F)

2 kA

100 ms

1.142 in (29 mm)

0.642 in (16.3 mm)

32 V

0.37 in (9.4 mm)

UL

125 °C (257 °F)

Slow

200E-2C-8.25L

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

End Cap

80 kA

200E-2C-8.25

6.378 in (162 mm)

6.378 x 15.874 in (162 x 403.2 mm)

15.874 in (403.2 mm)

PSR031FS0250Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

250 A

Threaded

3.789 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)

CUL; UL

125 °C (257 °F)

Fast

250E-2C-5.5L

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 A

End Cap

80 kA

250E-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)

FLSR250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

KLW250

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

250 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

PSR031UL0250Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

250 A

Tab/Blade

3.789 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.028 in (51.5 mm)

1.937 in (49.2 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

0298250.UX1M8

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

389 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

32 V

Mega

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

LCY250E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 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

8NLE2-250ES

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

End Cap

80 kA

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 17.87 in (162.05 x 453.89 mm)

17.87 in (453.89 mm)

Medium

PSR071UL0250Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

250 A

Tab/Blade

10.592 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

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.