Inline/Holder Fuses 1,479

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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

LA15QS450-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

450 A

Tab/Blade

50 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

LA15QS5-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

5 A

End Cap

12 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

UL

Very Fast

LA15QS50-1

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

50 A

End Cap

470 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

UL

Very Fast

LA15QS50-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

50 A

End Cap

640 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

UL

Very Fast

LA15QS500-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

500 A

Tab/Blade

90 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

UL

Very Fast

LA15QS55-1

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

55 A

End Cap

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

UL

Very Fast

LA15QS6-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

6 A

End Cap

22 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

UL

Very Fast

LA15QS60-1

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

60 A

End Cap

940 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

UL

Very Fast

LA15QS600-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

600 A

Tab/Blade

130 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

UL

Very Fast

LA15QS7-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

7 A

End Cap

11 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

UL

Very Fast

LA15QS70-4TI

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

70 A

Tab/Blade

2 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

Very Fast

LA15QS70-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

70 A

Tab/Blade

2 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

LA15QS8-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

8 A

End Cap

15 mJ

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

UL

Very Fast

LA15QS80-4TI

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

80 A

Tab/Blade

2.5 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

Very Fast

LA15QS80-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

80 A

Tab/Blade

2.5 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

LA15QS800-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

800 A

Tab/Blade

290 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

UL

Very Fast

LA15QS90-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

90 A

Tab/Blade

3.1 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

LA30QS100-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

100 A

Tab/Blade

4.1 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

Indicator

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS100-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

100 A

Tab/Blade

4.1 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

LA30QS1000-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

1 kA

End Cap

460 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

LA30QS1200-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

1.2 kA

End Cap

880 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

LA30QS125-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

125 A

Tab/Blade

6.3 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

LA30QS130-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

130 A

Tab/Blade

6.3 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

LA30QS150-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

150 A

Tab/Blade

9.3 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

Indicator

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS150-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

150 A

Tab/Blade

9.3 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

LA30QS1500-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

1.5 kA

End Cap

1.4 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.5 in (88.9 mm)

3.5 x 2.339 in (88.9 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS1600-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

1.6 kA

End Cap

1.69 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.5 in (88.9 mm)

3.5 x 2.339 in (88.9 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS175-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

175 A

Tab/Blade

10 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

LA30QS200-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

200 A

Tab/Blade

15 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.22 in (31 mm)

Indicator

1.22 x 1.63 in (31 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS200-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

200 A

Tab/Blade

15 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

LA30QS2000-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

2 kA

End Cap

2.6 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.5 in (88.9 mm)

3.5 x 2.339 in (88.9 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS225-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

225 A

Tab/Blade

22 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

LA30QS250-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

250 A

Tab/Blade

25 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

LA30QS250-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

250 A

Tab/Blade

25 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

LA30QS2500-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

2.5 kA

End Cap

4 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

3.5 in (88.9 mm)

3.5 x 2.339 in (88.9 x 59.4 mm)

2.339 in (59.4 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

LA30QS3000-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

3 kA

End Cap

4.7 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

4.488 in (114 mm)

4.488 x 2.339 in (114 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS35-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

35 A

Tab/Blade

900 mJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.72 in (18.3 mm)

0.72 x 1.63 in (18.3 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS350-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

350 A

Tab/Blade

62 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

LA30QS3500-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

3.5 kA

End Cap

6.5 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

4.488 in (114 mm)

4.488 x 2.339 in (114 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS40-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

40 A

Tab/Blade

1.2 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.72 in (18.3 mm)

0.72 x 1.63 in (18.3 x 41.4 mm)

1.63 in (41.4 mm)

UL

Very Fast

LA30QS400-4TI

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

400 A

Tab/Blade

83 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

LA30QS400-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

400 A

Tab/Blade

83 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

LA30QS4000-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

4 kA

End Cap

8.6 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

4.488 in (114 mm)

4.488 x 2.339 in (114 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS450-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

450 A

Tab/Blade

130 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

LA30QS4500-128

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

4.5 kA

End Cap

11 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

4.488 in (114 mm)

4.488 x 2.339 in (114 x 59.4 mm)

2.339 in (59.4 mm)

UL

Very Fast

LA30QS50-4

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 V

50 A

Tab/Blade

2 J

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.72 in (18.3 mm)

0.72 x 1.63 in (18.3 x 41.4 mm)

1.63 in (41.4 mm)

UL

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.