300 A Fuses 190

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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

LA15QS300-4IL

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

300 A

Tab/Blade

22 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

0998300.UX-NH

Littelfuse

Electric Fuse

Inline/Holder

70 V

300 A

Tab/Blade

340 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)

15NLE3-300EL

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

300 A

End Cap

60 kA

15NLE3-300E

9.748 in (247.6 mm)

9.748 x 23.874 in (247.6 x 606.4 mm)

23.874 in (606.4 mm)

300E-2C-5.5S

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

0JLS300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

200 kA

Bulk

2 in (50.8 mm)

J

600 V

2 x 3.374 in (50.8 x 85.7 mm)

3.374 in (85.7 mm)

CE; CSA; QPL; UL

Fast

0888300.U-1M8

Littelfuse

Electric Fuse

Inline/Holder

120 V

300 A

Tab/Blade

434 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)

2CM300

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 V

300 A

Tab/Blade

200 kA

2CM

Rated Breaking Capacity at 250 VDC: 80000 A

2.283 in (58 mm)

2.283 x 3.189 in (58 x 81 mm)

3.189 in (81 mm)

CSA

153.7011.6302

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 A

Tab/Blade

486 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

5NLE2300E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

KLB300

Littelfuse

Electric Fuse

Inline/Holder

250 V

200 V

300 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

300E2C2.75

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

300 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

IDSR300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 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

KLA300

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

300 A

Tab/Blade

100 kA

KLA

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

0298300.UXP-NH

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 A

Tab/Blade

378.9 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

0.389 in (9.89 mm)

125 °C (257 °F)

Time Delay

NLN300

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

300 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

SPFR300

Littelfuse

Electric Fuse

Inline/Holder

1 KV

300 A

Tab/Blade

10 kA

2.594 in (65.9 mm)

2.594 x 7.478 in (65.9 x 189.94 mm)

7.478 in (189.94 mm)

UL

Fast

LA15QS300-4TI

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

300 A

Tab/Blade

22 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

Fast

300E3C15.5

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

300 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

0898300.U-2M8

Littelfuse

Electric Fuse

Inline/Holder

70 V

300 A

Tab/Blade

340 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

3298300.H

Littelfuse

Electric Fuse

Surface Mount

32 V

300 A

Wraparound

310 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)

FLSR300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 A

200 kA

FLSR

Rated Breaking Capacity at 300 VDC: 20000 A

2.594 in (65.9 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

0888300.U-NH

Littelfuse

Electric Fuse

Inline/Holder

120 V

300 A

Tab/Blade

434 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)

0CCK300.V

Littelfuse

Electric Fuse

Inline/Holder

125 V

300 A

Tab/Blade

10 kA

1.06 in (26.92 mm)

4.702 in (119.43 mm)

Time Delay

L60S300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 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

LA100P300-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

300 A

Tab/Blade

160 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

LA100P300-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

300 A

Tab/Blade

160 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2 in (50.8 mm)

Indicator

2 x 3.469 in (50.8 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

3998300.ZXM10

Littelfuse

Electric Fuse

Surface Mount

80 V

300 A

Wraparound

259.2 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)

KLC300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 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

LCY300ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

LCU300ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

LDC300

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 A

Tab/Blade

200 kA

16 ms

Rated Breaking Capacity at 600 VDC: 50000 A

2.5 in (63.5 mm)

3.752 in (95.3 mm)

CE, UL

Fast

RLN300

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 A

Tab/Blade

10 kA

2.094 in (53.2 mm)

8.626 in (219.1 mm)

CE; CSA; UL

5NLE2-300EL

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 A

End Cap

80 kA

5NLE2-300E

6.378 in (162 mm)

6.378 x 17.874 in (162 x 454 mm)

17.874 in (454 mm)

RLS300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

10 kA

2.594 in (65.9 mm)

11.626 in (295.3 mm)

CE; CSA; UL

LA50QS300-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 A

Tab/Blade

55 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

0898300.U-1M6

Littelfuse

Electric Fuse

Inline/Holder

70 V

300 A

Tab/Blade

340 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

0298300ZXEH

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 A

Tab/Blade

-40 °C (-40 °F)

Silver

2 kA

Bulk

1.15 in (29.21 mm)

0.75 in (19.05 mm)

e4

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)

IDSR300ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 A

200 kA

IDSR

Rated Breaking Capacity at 600 VDC: 20000 A

Indicator

CSA; UL

Time Delay

LLSRK300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 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

LCY300E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

LA30QS300-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

300 A

Tab/Blade

37 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.5 in (38.1 mm)

1.5 x 1.579 in (38.1 x 40.1 mm)

1.579 in (40.1 mm)

UL

Very Fast

0CNL300.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

300 A

Tab/Blade

2.5 kA

3.181 in (80.8 mm)

UL

Fast

300E-2CL-5.5

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

300 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

IDSR300

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 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

L15S300

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

300 A

Tab/Blade

-55 °C (-67 °F)

100 kA

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

125 °C (257 °F)

Very Fast

0998300.UX-1M6

Littelfuse

Electric Fuse

Inline/Holder

70 V

300 A

Tab/Blade

340 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)

15NLE3300E

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

300 A

End Cap

60 kA

10 m

9.752 in (247.7 mm)

Striker

9.75 x 23.875 in (247.65 x 606.43 mm)

23.875 in (606.43 mm)

Medium

LA15QS300-4TL

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

300 A

Tab/Blade

22 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

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.