300 V Fuses 73

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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

LA30QS600-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

600 A

Tab/Blade

230 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

LA30QS600-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

600 A

Tab/Blade

230 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

LA30QS70-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

70 A

Tab/Blade

1.6 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS700-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

700 A

End Cap

260 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3 in (76.2 mm)

3 x 2.339 in (76.2 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS700-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

700 A

Tab/Blade

260 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

LA30QS80-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

80 A

Tab/Blade

2.6 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS800-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

800 A

End Cap

330 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3 in (76.2 mm)

3 x 2.339 in (76.2 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS800-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

800 A

Tab/Blade

330 J

200 kA

LA30

Rated Breaking Capacity at 300 VDC: 20000 A

UL

Very Fast

LA30QS90-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

90 A

Tab/Blade

3.2 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

JLLN110

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

110 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.063 in (27 mm)

1.063 x 0.843 in (27 x 21.4 mm)

2.437 in (61.9 mm)

CE; CSA; CUL; UL

Fast

JLLN150

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

150 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.063 in (27 mm)

1.063 x 0.843 in (27 x 21.4 mm)

2.437 in (61.9 mm)

CE; CSA; CUL; UL

Fast

JLLN175

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

175 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.063 in (27 mm)

1.063 x 0.843 in (27 x 21.4 mm)

2.437 in (61.9 mm)

CE; CSA; CUL; UL

Fast

JLLN200

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

200 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.063 in (27 mm)

1.063 x 0.843 in (27 x 21.4 mm)

2.437 in (61.9 mm)

CE; CSA; CUL; UL

Fast

JLLN250

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)

1.311 x 0.827 in (33.3 x 21 mm)

2.752 in (69.9 mm)

CE; CSA; CUL; 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

JLLN350

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

350 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

JLLN400

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

400 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

LMF1/2

Littelfuse

Electric Fuse

Inline/Holder

300 V

500 mA

End Cap

10 kA

0.61 in (15.49 mm)

0.61 x 1.82 in (15.49 x 46.23 mm)

1.82 in (46.23 mm)

CSA; UL

Time Delay

36908000000

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

800 mA

Pin Wire

5.12 J

-40 °C (-40 °F)

Tin

50 A

20 s

3.8

Ammo Pack

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

300 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

CUL; UL

85 °C (185 °F)

Time Lag

36908000440

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

800 mA

Pin Wire

5.12 J

-40 °C (-40 °F)

Tin

50 A

20 s

3.8

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

300 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

CUL; UL

85 °C (185 °F)

Time Lag

36915000440

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

5 A

Pin Wire

106.25 J

-40 °C (-40 °F)

Tin

50 A

20 s

90

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

300 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

CUL; PSE; UL; VDE

85 °C (185 °F)

Time Lag

SS-5H-1-25A-APH

Eaton Corporation

Electric Fuse

Through Hole Mount

300 V

1.25 A

Pin Wire

12.8 J

-40 °C (-40 °F)

100 A

Ammo Pack

0.335 in (8.5 mm)

0.169 in (4.3 mm)

20 ms

0.309 in (7.85 mm)

CCC; CUL; KC; PSE; TUV; UL; VDE

125 °C (257 °F)

Time Delay

JLLN1000X

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

1 kA

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.5 in (63.5 mm)

4 in (101.6 mm)

CSE; CUL; UL

Fast

JLLN1100X

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

1.1 kA

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.5 in (63.5 mm)

4 in (101.6 mm)

CSE; CUL; UL

Fast

JLLN1200X

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

1.2 kA

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.5 in (63.5 mm)

4 in (101.6 mm)

CSE; CUL; UL

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.