300 A Fuses 14

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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

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

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

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

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

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

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

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

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

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

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

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

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)

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

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)

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.