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

157.5701.6301

Littelfuse

Electric Fuse

Inline/Holder

48 V

300 A

Tab/Blade

-40 °C (-40 °F)

1.8 kA

200 ms

Bulk

1.26 in (32 mm)

0.866 in (22 mm)

48 V

1.26 x 0.866 x 0.413 in (32 x 22 x 10.5 mm)

0.413 in (10.5 mm)

CUL; UL

125 °C (257 °F)

FWH-300A

Eaton Corporation

Electric Fuse

Inline/Holder

500 V

500 V

300 A

Tab/Blade

9.8 kJ

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Box

1.5 in (38.1 mm)

1.5 x 2.09 in (38.1 x 53.09 mm)

2.09 in (53.09 mm)

CE; CSA; UL

ANL-300

Eaton Corporation

Electric Fuse

Inline/Holder

80 V

300 A

End Cap

2.7 kA

3.189 in (81 mm)

Indicator

3.189 x 0.874 in (81 x 22.2 mm)

0.874 in (22.2 mm)

CSA; UL

Time Delay

FWP-300A

Eaton Corporation

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

17.6 kJ

50 kA

Box

2 in (50.8 mm)

2 x 2.84 in (50.8 x 72.14 mm)

2.84 in (72.136 mm)

CE; CSA; UL

JLLN300.XXP

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)

300 V

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

JLLN300P

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)

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

0AKK-K300-BA

Bel Fuse

Electric Fuse

Inline/Holder

1 KV

300 A

Tab/Blade

17 kJ

-40 °C (-40 °F)

Tin

50 kA

Bulk

2.913 in (74 mm)

1.772 in (45 mm)

e3

0.984 in (25 mm)

125 °C (257 °F)

Fast

KBC-300

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

200 kA

Box

1.5 in (38.1 mm)

1.5 x 2.906 in (38.1 x 73.81 mm)

2.906 in (73.81 mm)

CE; UL

AJT300

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2.126 in (54 mm)

Indicator

2.126 x 3.346 in (54 x 85 mm)

7.126 in (181 mm)

Time Delay

JJN-300

Eaton Corporation

Electric Fuse

Inline/Holder

300 V

160 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 160 VDC: 20000 A

Box

1 in (25.4 mm)

1 x 0.858 in (25.4 x 21.8 mm)

0.858 in (21.8 mm)

CE; CSA; UL

Very Fast

MEV100A300-4

Mersen S A

Electric Fuse

Inline/Holder

1 KV

300 A

Tab/Blade

100 kA

80 ms

Bulk

1.5 in (38.1 mm)

2.843 in (72.2 mm)

IATF 16949; UL

PF-FB2-300

Bourns

Electric Fuse

Inline/Holder

800 V

800 V

300 A

Tab/Blade

52 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 50000 A

Bulk

1.386 in (35.2 mm)

2.724 in (69.2 mm)

CUL; UL

125 °C (257 °F)

AJT300EI

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

Indicator

3.236 in (82.2 mm)

3.236 in (82.2 mm)

UL

Time Delay

AJT300N

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

300 A

Tab/Blade

200 kA

2.126 in (54 mm)

7.126 in (181 mm)

CSA; IEC; UL

Time Delay

FRN-R-300

Eaton Corporation

Electric Fuse

Inline/Holder

250 V

250 V

300 A

Tab/Blade

200 kA

10 s

Rated Breaking Capacity at 250 VDC: 20000 A

Box

2.38 in (60.452 mm)

RK5

250 V

2.38 x 8.63 in (60.45 x 219.2 mm)

8.63 in (219.202 mm)

CE; CSA; UL

Time Delay

FWA-300B

Eaton Corporation

Electric Fuse

Inline/Holder

150 V

150 V

300 A

Tab/Blade

10.76 kJ

100 kA

Rated Breaking Capacity at 150 VDC: 20000 A

Box

1 in (25.4 mm)

1 x 1.156 in (25.4 x 29.36 mm)

1.156 in (29.36 mm)

CE; UL

JLLS300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.594 in (40.5 mm)

600 V

1.713 in (43.5 mm)

CE; CSA; UL

Fast

0298300.ZXH

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

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

0.421 in (10.7 mm)

125 °C (257 °F)

Time Delay

0298300ZXH

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)

0AKRBK300-BB

Bel Fuse

Electric Fuse

Inline/Holder

500 V

300 A

Tab/Blade

-40 °C (-40 °F)

Tin

50 kA

Bulk

1.929 in (49 mm)

1.457 in (37 mm)

e3

0.945 in (24 mm)

105 °C (221 °F)

AJT300/600

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

300 A

Tab/Blade

200 kA

2.52 in (64 mm)

J

600 V

7.992 in (203 mm)

IEC, UL

Time Lag

JJS-300

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

200 kA

3.626 in (92.1 mm)

3.626 x 1.736 in (92.1 x 44.1 mm)

1.736 in (44.1 mm)

CE; CSA; UL

Very Fast

NOS-300

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 A

Tab/Blade

10 kA

Box

2.59 in (65.79 mm)

H

600 V

2.59 x 11.63 in (65.79 x 295.4 mm)

11.63 in (295.4 mm)

CE; CSA; UL

0CNN300E.V

Littelfuse

Electric Fuse

Inline/Holder

80 V

300 A

Tab/Blade

2.7 kA

3.181 in (80.8 mm)

80 V

3.18 in (80.77 mm)

CUL; UL

Very Fast

142.5395.6302

Littelfuse

Electric Fuse

Inline/Holder

58 V

300 A

Tab/Blade

486 kJ

-40 °C (-40 °F)

1 kA

100 ms

1.142 in (29 mm)

58 V

1.142 x 0.74 x 0.366 in (29 x 18.8 x 9.3 mm)

0.37 in (9.4 mm)

UL

125 °C (257 °F)

Slow

L50QS300.V

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 A

Tab/Blade

11.24 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

1.5 in (38.1 mm)

10 ms

2.093 in (53.16 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

0298300.TXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

300 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)

0298300TXN

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)

0998300.U-2M8

Littelfuse

Electric Fuse

Inline/Holder

70 V

300 A

Tab/Blade

300 kJ

-40 °C (-40 °F)

2.5 kA

500 ms

1.15 in (29.21 mm)

0.75 in (19.05 mm)

0.39 in (9.9 mm)

125 °C (257 °F)

0998300.UX-2M6

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)

0998300.UX-2M8

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)

0LDC300.X

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)

L

600 V

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CE, UL

Fast

JTD300

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

KLPC300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

480 V

300 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

SPFJ300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

1 KV

300 A

Tab/Blade

143 kJ

200 kA

12 m

Rated Breaking Capacity at 1000 VDC: 20000 A

Bulk

2 in (50.8 mm)

Midget

2 x 3.374 in (50.8 x 85.7 mm)

3.374 in (85.7 mm)

CE; IEC; UL; VDE

AMG-300

Eaton Corporation

Electric Fuse

Inline/Holder

48 V

300 A

Tab/Blade

Rated Breaking Capacity at 48 VDC: 1000 A

1.15 in (29.2 mm)

0.606 in (15.4 mm)

1.15 x 0.606 x 0.354 in (29.2 x 15.4 x 9 mm)

0.354 in (9 mm)

UL

JLLN300.X

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)

300 V

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

LA70QS300-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

55 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

LDZ300ES

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

300 A

End Cap

80 kA

LDZ

Hermitically Sealed Part Number

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

FLSR.300

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

FLSR300.X

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)

11.626 in (295.3 mm)

CSA; UL

Time Delay

JTD300ID

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)

Indicator

2.126 x 3.374 in (54 x 85.7 mm)

3.374 in (85.7 mm)

CSA; UL

Time Delay

300E-3C-15.5L

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

300 A

End Cap

60 kA

300E-3C-15.5

9.748 in (247.6 mm)

9.748 x 18.874 in (247.6 x 479.4 mm)

18.874 in (479.4 mm)

15NLE3-300ES

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

300 A

End Cap

60 kA

Hermitically Sealed Part Number

9.75 in (247.65 mm)

9.75 x 23.875 in (247.65 x 606.43 mm)

23.875 in (606.43 mm)

Medium

153.5395.6302

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

0888300.U-2M6

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)

0581300

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)

48 V

1.535 x 0.683 in (39 x 17.35 mm)

0.683 in (17.35 mm)

UL

Fast

300E-2C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 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

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.