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

155.0892.6301

Littelfuse

Electric Fuse

Surface Mount

58 V

300 A

Wraparound

372 kJ

-40 °C (-40 °F)

Matte Tin

2 kA

372000

0.925 in (23.5 mm)

0.787 in (20 mm)

e3

58 V

0.925 x 0.787 x 0.453 in (23.5 x 20 x 11.5 mm)

0.453 in (11.5 mm)

UL

125 °C (257 °F)

LDZ300E

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

300 A

End Cap

80 kA

LDZ

9.75 in (247.65 mm)

9.75 x 15.875 in (247.65 x 403.23 mm)

15.875 in (403.23 mm)

Medium

0298300.ZXB

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 A

Tab/Blade

315 kJ

-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

LA30QS300-4TI

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)

Indicator

1.5 x 1.579 in (38.1 x 40.1 mm)

1.579 in (40.1 mm)

UL

Very Fast

L70QS300.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

16.296 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

JLLN300

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.311 in (33.3 mm)

1.311 x 0.827 in (33.3 x 21 mm)

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

NLS300

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

300 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

L13S300

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

300 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

TLN300

Littelfuse

Electric Fuse

Inline/Holder

170 V

300 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

8NLE2-150EL

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

300 A

End Cap

80 kA

8NLE2-150E

6.378 in (162 mm)

6.378 x 17.874 in (162 x 454 mm)

17.874 in (454 mm)

0898300.U-1M8

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

JLLS300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 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

CNL300

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

300 A

Tab/Blade

2.5 kA

3.181 in (80.8 mm)

2.43 in (61.72 mm)

UL

Fast

2CC300

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 V

300 A

Tab/Blade

200 kA

2CC

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

FLNR300

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

2 in (50.8 mm)

8.626 in (219.1 mm)

CSA; UL

Time Delay

0298300.UXP-2M8

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

FLSR300ID

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)

Indicator

2.594 x 11.626 in (65.9 x 295.3 mm)

11.626 in (295.3 mm)

CSA; QPL; UL

Time Delay

JLS300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

200 kA

Bulk

2 in (50.8 mm)

2 x 3.374 in (50.8 x 85.7 mm)

3.374 in (85.7 mm)

CE; CSA; QPL; UL

Fast

L60S300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 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

0898300.U-NH

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

LLNRK300

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

2.094 x 8.626 in (53.2 x 219.1 mm)

8.626 in (219.1 mm)

CSA; UL

Time Delay

5NLE2-300ES

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 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

0298300.ZXA

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 A

Tab/Blade

315 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

32 V

Mega

0.421 in (10.7 mm)

125 °C (257 °F)

Time Delay

L17T300V

Littelfuse

Electric Fuse

300 A

100 kA

1.5 in (38.1 mm)

170 V

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

CE, CSA, UL

KLSR300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 A

Tab/Blade

200 kA

KLSR

Rated Breaking Capacity at 300 VDC: 20000 A

2.594 in (65.9 mm)

11.626 in (295.3 mm)

CSA; UL

Fast

581300

Littelfuse

Electric Fuse

Inline/Holder

48 V

48 V

300 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

L25S300

Littelfuse

Electric Fuse

Inline/Holder

250 V

200 V

300 A

Tab/Blade

200 kA

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

LA15QS300-4

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

0JTD300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2 in (50.8 mm)

3.374 in (85.7 mm)

CSA; UL

Time Delay

L17T300.V

Littelfuse

Electric Fuse

Inline/Holder

170 V

300 A

Tab/Blade

100 kA

Bulk

1.5 in (38.1 mm)

1.252 in (31.8 mm)

CSA; UL

FLSR300.XXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

Indicator

11.626 in (295.3 mm)

CSA; UL

Time Delay

153.5395.63021

Littelfuse

Electric Fuse

Inline/Holder

2 KV

300 A

Tab/Blade

486 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.142 in (29 mm)

0.642 in (16.3 mm)

0.37 in (9.4 mm)

CUL; UL

125 °C (257 °F)

153.7011.63021

Littelfuse

Electric Fuse

Inline/Holder

2 KV

300 A

Tab/Blade

486 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.142 in (29 mm)

0.642 in (16.3 mm)

0.37 in (9.4 mm)

CUL; UL

125 °C (257 °F)

FLNR300.XXID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

2 in (50.8 mm)

Indicator

8.626 in (219.1 mm)

CSA; UL

Time Delay

FLNR300.X

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

2 in (50.8 mm)

8.626 in (219.1 mm)

CSA; UL

Time Delay

EV1K300

Littelfuse

Electric Fuse

Inline/Holder

1 KV

300 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)

0RLN300.T

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

KLSR0300

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)

11.626 in (295.3 mm)

CE; CSA; UL

Fast

L15S300.T

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

Box

1 in (25.4 mm)

1.157 in (29.4 mm)

CSA; UL

125 °C (257 °F)

Very Fast

LLNRK300.V

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

8.626 in (219.1 mm)

CE; CSA; UL; QPL

Time Delay

LLSRK300.TXID

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)

Indicator

11.626 in (295.3 mm)

CE; CSA; UL; QPL

Time Delay

0KLC300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

-55 °C (-67 °F)

200 kA

Box

2 in (50.8 mm)

2.843 in (72.2 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0RLS300.T

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

L70QS300

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

16.296 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

KLNR0300

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

8.626 in (219.1 mm)

CE; CSA; UL

Fast

3298300.ZXSTA

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)

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.