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

NLN250

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

250 A

Tab/Blade

50 kA

Rated Breaking Capacity at 250 VDC; 50000

2.094 in (53.2 mm)

2.094 x 4.878 in (53.2 x 123.9 mm)

4.878 in (123.9 mm)

CSA; UL

JTD250ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2 in (50.8 mm)

Indicator

2.126 x 3.374 in (54 x 85.7 mm)

3.374 in (85.7 mm)

CSA; UL

Time Delay

0888250.U-1M8

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)

KLB250

Littelfuse

Electric Fuse

Inline/Holder

250 V

200 V

250 A

Tab/Blade

200 kA

KLB

Rated Breaking Capacity at 200 VDC: 20000 A

1.5 in (38.1 mm)

1.5 x 1.594 in (38.1 x 40.5 mm)

1.594 in (40.5 mm)

CSA; UL

Fast

3298250.H

Littelfuse

Electric Fuse

Surface Mount

32 V

250 A

Wraparound

160 kJ

-40 °C (-40 °F)

2 kA

100 ms

1.181 in (30 mm)

1.047 in (26.6 mm)

Mega

0.63 in (16 mm)

125 °C (257 °F)

NH1G250

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

RLS250

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 A

Tab/Blade

10 kA

2.594 in (65.9 mm)

11.626 in (295.3 mm)

CE; CSA; UL

LCU250E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

250 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

TLN250

Littelfuse

Electric Fuse

Inline/Holder

170 V

250 A

Tab/Blade

Rated Breaking Capacity at 170 VDC: 100000 A

2.094 in (53.2 mm)

2.094 x 4.764 in (53.2 x 121 mm)

4.764 in (121 mm)

UL

Fast

PSR030FS0250Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

250 A

Threaded

4.668 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

0998250.U-2M8

Littelfuse

Electric Fuse

Inline/Holder

70 V

250 A

Tab/Blade

240 kJ

-40 °C (-40 °F)

2.5 kA

100 ms

1.15 in (29.21 mm)

0.75 in (19.05 mm)

0.39 in (9.9 mm)

125 °C (257 °F)

FLNR.250ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

Indicator

2.094 x 8.626 in (53.2 x 219.1 mm)

8.626 in (219.1 mm)

CSA; QPL; UL

Time Delay

LA70QS250-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

250 A

Tab/Blade

42 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 2.843 in (38.1 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

Fast

0888250.U-NH

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)

L60S250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 A

Tab/Blade

-55 °C (-67 °F)

200 kA

Box

1.579 in (40.1 mm)

2.906 in (73.8 mm)

CSA; UL

125 °C (257 °F)

Very Fast

581250

Littelfuse

Electric Fuse

Inline/Holder

48 V

48 V

250 A

Tab/Blade

2.5 kA

1.535 in (39 mm)

1.195 in (30.35 mm)

1.535 x 1.195 x 0.683 in (39 x 30.35 x 17.35 mm)

0.683 in (17.35 mm)

UL

0298250.ZXEH-LT

Littelfuse

Electric Fuse

Inline/Holder

32 V

250 A

Tab/Blade

637 kJ

-40 °C (-40 °F)

2 kA

100 ms

637000

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

Mega

1.15 x 0.75 x 0.39 in (29.2 x 19.05 x 9.9 mm)

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

0298250.ZXA

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

SPNH250.X2XLDE

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

250 A

Tab/Blade

73 kJ

30 kA

Bulk

5.165 in (131.2 mm)

2.362 in (60 mm)

GPV

1.5 KV

NH

2.362 in (60 mm)

UL

KLPC250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

480 V

250 A

Tab/Blade

200 kA

8.626 in (219.1 mm)

L

600 V

8.626 x 3.752 in (219.1 x 95.3 mm)

3.752 in (95.3 mm)

CE; CSA; UL

Time Lag

0298250.ZXH

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)

Mega

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

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

LLSRK250

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

2.594 in (65.9 mm)

2.594 x 11.626 in (65.9 x 295.3 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

LDZ250ES

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

End Cap

80 kA

LDZ

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

156.5610.6252

Littelfuse

Electric Fuse

Inline/Holder

36 V

250 A

Tab/Blade

-40 °C (-40 °F)

625 A

1 m

Bulk

1.614 in (41 mm)

0.433 in (11 mm)

0.079 in (2 mm)

125 °C (257 °F)

JLLS250

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.594 in (40.5 mm)

1.594 x 1.72 in (40.5 x 43.7 mm)

1.72 in (43.7 mm)

CSA; UL

Fast

JLLN250.X

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.311 in (33.3 mm)

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

EV1K250

Littelfuse

Electric Fuse

Inline/Holder

1 KV

250 A

Tab/Blade

-40 °C (-40 °F)

30 kA

Bulk

2 in (50.8 mm)

2.844 in (72.24 mm)

125 °C (257 °F)

EV1K250.ZXBD

Littelfuse

Electric Fuse

Inline/Holder

1 KV

250 A

Tab/Blade

-40 °C (-40 °F)

30 kA

Bulk

2 in (50.8 mm)

2.844 in (72.24 mm)

125 °C (257 °F)

0JTD250.XXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2 in (50.8 mm)

Indicator

3.374 in (85.7 mm)

CSA; UL

Time Delay

30EV250.ZXBDM

Littelfuse

Electric Fuse

Inline/Holder

500 V

250 A

Tab/Blade

52 kJ

-40 °C (-40 °F)

30 kA

50 ms

1.181 in (30 mm)

2.047 in (52 mm)

CSA; UL

125 °C (257 °F)

Time Delay

SPNH0250.X2XLDEMS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

250 A

Tab/Blade

73 kJ

30 kA

Bulk

5.165 in (131.2 mm)

2.362 in (60 mm)

NH

2.362 in (60 mm)

UL

LCX250ES

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

250 A

End Cap

80 kA

LCX

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

0298250.UXP-1M6

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

0998250.UX-2M6

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)

LDC0250

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 50000

2.5 in (63.5 mm)

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CSA; UL

Time Delay

NLS250

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

250 A

Tab/Blade

50 kA

Rated Breaking Capacity at 500 VDC; 50000

2.594 in (65.9 mm)

2.594 x 7.878 in (65.9 x 200.1 mm)

7.878 in (200.1 mm)

CSA; UL

PSX1XLDB0250X

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

250 A

Tab/Blade

36.552 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

0898250.U-1M8

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

PSR071FS0250Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

250 A

Threaded

10.592 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)

CUL; UL

125 °C (257 °F)

Fast

0998250.U-1M8

Littelfuse

Electric Fuse

Inline/Holder

70 V

250 A

Tab/Blade

240 kJ

-40 °C (-40 °F)

2.5 kA

100 ms

1.15 in (29.21 mm)

0.75 in (19.05 mm)

0.39 in (9.9 mm)

125 °C (257 °F)

250E-2C-2.75L

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

250 A

End Cap

80 kA

250E-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)

250E-2CL-8.25

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

250 A

Tab/Blade

80 kA

7.94 in (201.68 mm)

7.94 x 16.131 in (201.68 x 409.72 mm)

16.131 in (409.72 mm)

Medium

0298250.ZXB

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

1.15 x 0.75 x 0.39 in (29.2 x 19.05 x 9.9 mm)

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

0CNN250E.V

Littelfuse

Electric Fuse

Inline/Holder

80 V

250 A

Tab/Blade

2.7 kA

3.181 in (80.8 mm)

80 V

3.18 in (80.77 mm)

CUL; UL

Very Fast

250E3C15.5

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

250 A

End Cap

80 kA

10 m

9.752 in (247.7 mm)

Striker

9.726 x 18.875 in (247.05 x 479.43 mm)

18.875 in (479.43 mm)

Medium

0888250.U-2M6

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)

CNN250

Littelfuse

Electric Fuse

Inline/Holder

125 V

48 V

250 A

Tab/Blade

2.5 kA

3.181 in (80.8 mm)

2.43 in (61.72 mm)

UL

Very Fast

PSR030UL0250Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

250 A

Tab/Blade

4.668 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

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.