Littelfuse Fuses 1,824

Reset All
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

LA100P30-1

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

30 A

End Cap

1.5 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

0.559 in (14.2 mm)

0.559 x 2.63 in (14.2 x 66.8 mm)

2.63 in (66.8 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

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

LA100P35-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

35 A

Tab/Blade

2.2 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P350-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

350 A

Tab/Blade

220 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

LA100P350-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

350 A

Tab/Blade

220 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

LA100P40-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

40 A

Tab/Blade

2.9 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P400-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

400 A

Tab/Blade

290 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

LA100P400-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

400 A

Tab/Blade

290 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

LA100P50-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

50 A

Tab/Blade

4.5 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

Indicator

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P50-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

50 A

Tab/Blade

4.5 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P500-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

500 A

Tab/Blade

450 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.5 in (63.5 mm)

Indicator

2.5 x 3.469 in (63.5 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

LA100P500-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

500 A

Tab/Blade

450 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.5 in (63.5 mm)

2.5 x 3.469 in (63.5 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

LA100P60-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

60 A

Tab/Blade

6.5 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

Indicator

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P60-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

60 A

Tab/Blade

6.5 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1 in (25.4 mm)

1 x 6.811 in (25.4 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P600-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

600 A

Tab/Blade

650 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.5 in (63.5 mm)

Indicator

2.5 x 3.469 in (63.5 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

LA100P600-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

600 A

Tab/Blade

650 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.5 in (63.5 mm)

2.5 x 3.469 in (63.5 x 88.1 mm)

3.469 in (88.1 mm)

UL

Very Fast

LA100P650-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

650 A

Tab/Blade

780 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.882 in (73.2 mm)

2.882 x 3.937 in (73.2 x 100 mm)

3.937 in (100 mm)

UL

Very Fast

LA100P700-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

700 A

Tab/Blade

880 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.882 in (73.2 mm)

2.882 x 3.937 in (73.2 x 100 mm)

3.937 in (100 mm)

UL

Very Fast

LA100P80-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

80 A

Tab/Blade

12 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1.22 in (31 mm)

Indicator

1.22 x 6.811 in (31 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P80-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

80 A

Tab/Blade

12 J

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

1.22 in (31 mm)

1.22 x 6.811 in (31 x 173 mm)

6.811 in (173 mm)

UL

Very Fast

LA100P800-4TI

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

800 A

Tab/Blade

1.2 kJ

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.882 in (73.2 mm)

Indicator

2.882 x 3.937 in (73.2 x 100 mm)

3.937 in (100 mm)

UL

Very Fast

LA100P800-4

Littelfuse

Electric Fuse

Inline/Holder

1 KV

750 V

800 A

Tab/Blade

1.2 kJ

100 kA

Rated Breaking Capacity at 750 VDC: 100000 A

2.882 in (73.2 mm)

2.882 x 3.937 in (73.2 x 100 mm)

3.937 in (100 mm)

UL

Very Fast

LA100URD73LI1100

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.1 kA

Tab/Blade

445 J

100 kA

LA

Indicator

UL

Very Fast

LA100URD73LI1250

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.25 kA

Tab/Blade

585 J

100 kA

LA

Indicator

UL

Very Fast

LA100URD73TTI1100

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.1 kA

End Cap

445 J

100 kA

LA

Indicator

UL

Very Fast

LA100URD73TTI1250

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.25 kA

End Cap

585 J

100 kA

LA

Indicator

UL

Very Fast

LA110URD71LLI0630

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

630 A

Tab/Blade

125 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA110URD72LI0700

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

700 A

Tab/Blade

145 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA110URD72LI0800

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

800 A

Tab/Blade

215 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA110URD73LI0900

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 A

Tab/Blade

250 J

100 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 2.854 in (74.5 x 74.5 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD70LI0350

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

350 A

Tab/Blade

28 J

100 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 2.854 in (40 x 40 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD70TTI0350

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

350 A

End Cap

28 J

100 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 2.854 in (40 x 40 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71LLI0500

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

500 A

Tab/Blade

68 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71LLI0550

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

550 A

Tab/Blade

84 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71TTI0500

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

500 A

End Cap

68 J

100 kA

LA

Indicator

UL

Very Fast

LA120URD71TTI0550

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

550 A

End Cap

84 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71TTI0630

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

630 A

End Cap

125 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD72LI0630

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

630 A

Tab/Blade

105 J

100 kA

LA

Indicator

UL

Very Fast

LA120URD72TTI0700

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

700 A

End Cap

145 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD72TTI0800

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

800 A

End Cap

215 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD73LI0800

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

800 A

Tab/Blade

190 J

100 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 2.854 in (74.5 x 74.5 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120X1-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

1 A

End Cap

7.5 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X1/2-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

500 mA

End Cap

1.9 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Fast

LA120X10-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

10 A

End Cap

970 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X15-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

15 A

End Cap

2.1 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X2-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

2 A

End Cap

30 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X20-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

20 A

End Cap

3.7 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

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.