Fuses

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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

KLC5

Littelfuse

Electric Fuse

Inline/Holder

600 V

5 A

Tab/Blade

200 kA

0.563 in (14.3 mm)

0.563 x 1.874 in (14.3 x 47.6 mm)

1.874 in (47.6 mm)

CSA; UL

Fast

KLC60

Littelfuse

Electric Fuse

Inline/Holder

600 V

60 A

Tab/Blade

200 kA

0.811 in (20.6 mm)

0.811 x 2.752 in (20.6 x 69.9 mm)

2.752 in (69.9 mm)

CSA; UL

Fast

KLC6

Littelfuse

Electric Fuse

Inline/Holder

600 V

6 A

Tab/Blade

200 kA

0.563 in (14.3 mm)

0.563 x 1.874 in (14.3 x 47.6 mm)

1.874 in (47.6 mm)

CSA; UL

Fast

LA050URD32LI1800

Littelfuse

Electric Fuse

Inline/Holder

500 V

1.8 kA

Tab/Blade

1.05 kJ

200 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 1.874 in (60 x 60 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA050URD32TTI1800

Littelfuse

Electric Fuse

Inline/Holder

500 V

1.8 kA

End Cap

1.05 kJ

200 kA

LA

Indicator

UL

Very Fast

LA050URD33LI2500

Littelfuse

Electric Fuse

Inline/Holder

500 V

2.5 kA

Tab/Blade

1.87 kJ

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA050URD33TTI2500

Littelfuse

Electric Fuse

Inline/Holder

500 V

2.5 kA

End Cap

1.87 kJ

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA055URD32LI1400

Littelfuse

Electric Fuse

Inline/Holder

550 V

1.4 kA

Tab/Blade

555 J

200 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 1.874 in (60 x 60 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA055URD32LI1600

Littelfuse

Electric Fuse

Inline/Holder

550 V

1.6 kA

Tab/Blade

870 J

200 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 1.874 in (60 x 60 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA055URD32TTI1400

Littelfuse

Electric Fuse

Inline/Holder

550 V

1.4 kA

End Cap

555 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA055URD32TTI1600

Littelfuse

Electric Fuse

Inline/Holder

550 V

1.6 kA

End Cap

870 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA055URD33TTI2250

Littelfuse

Electric Fuse

Inline/Holder

550 V

2.25 kA

End Cap

1.25 kJ

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA060URD32LI1250

Littelfuse

Electric Fuse

Inline/Holder

600 V

1.25 kA

Tab/Blade

410 J

200 kA

LA

Indicator

UL

Very Fast

LA060URD32TTI1250

Littelfuse

Electric Fuse

Inline/Holder

600 V

1.25 kA

End Cap

410 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA060URD33LI2000

Littelfuse

Electric Fuse

Inline/Holder

600 V

2 kA

Tab/Blade

950 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA060URD33TTI2000

Littelfuse

Electric Fuse

Inline/Holder

600 V

2 kA

End Cap

950 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA065URD32LI1100

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.1 kA

Tab/Blade

270 J

200 kA

LA

Indicator

UL

Very Fast

LA065URD32TTI1100

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.1 kA

End Cap

270 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA065URD33LI1600

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.6 kA

Tab/Blade

555 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA065URD33LI1800

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.8 kA

Tab/Blade

720 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA065URD33TTI1600

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.6 kA

End Cap

555 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA065URD33TTI1800

Littelfuse

Electric Fuse

Inline/Holder

650 V

1.8 kA

End Cap

720 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA065URD73LI1800

Littelfuse

Electric Fuse

Inline/Holder

660 V

1.8 kA

Tab/Blade

2.04 kJ

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

LA065URD73TTI1800

Littelfuse

Electric Fuse

Inline/Holder

660 V

1.8 kA

End Cap

2.04 kJ

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

LA070URD30KI0063

Littelfuse

Electric Fuse

Inline/Holder

700 V

63 A

Tab/Blade

200 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0080

Littelfuse

Electric Fuse

Inline/Holder

700 V

80 A

Tab/Blade

330 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0100

Littelfuse

Electric Fuse

Inline/Holder

700 V

100 A

Tab/Blade

470 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0125

Littelfuse

Electric Fuse

Inline/Holder

700 V

125 A

Tab/Blade

850 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0160

Littelfuse

Electric Fuse

Inline/Holder

700 V

160 A

Tab/Blade

1.6 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0200

Littelfuse

Electric Fuse

Inline/Holder

700 V

200 A

Tab/Blade

3 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0250

Littelfuse

Electric Fuse

Inline/Holder

700 V

250 A

Tab/Blade

5.8 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0315

Littelfuse

Electric Fuse

Inline/Holder

700 V

315 A

Tab/Blade

12 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0350

Littelfuse

Electric Fuse

Inline/Holder

700 V

350 A

Tab/Blade

15.5 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

400 A

Tab/Blade

23 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0450

Littelfuse

Electric Fuse

Inline/Holder

700 V

450 A

Tab/Blade

26 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0500

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 A

Tab/Blade

41 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30KI0550

Littelfuse

Electric Fuse

Inline/Holder

700 V

550 A

Tab/Blade

52 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0063

Littelfuse

Electric Fuse

Inline/Holder

700 V

63 A

Tab/Blade

200 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0080

Littelfuse

Electric Fuse

Inline/Holder

700 V

80 A

Tab/Blade

330 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0100

Littelfuse

Electric Fuse

Inline/Holder

700 V

100 A

Tab/Blade

470 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0125

Littelfuse

Electric Fuse

Inline/Holder

700 V

125 A

Tab/Blade

850 mJ

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0200

Littelfuse

Electric Fuse

Inline/Holder

700 V

200 A

Tab/Blade

3 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0250

Littelfuse

Electric Fuse

Inline/Holder

700 V

250 A

Tab/Blade

5.8 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0315

Littelfuse

Electric Fuse

Inline/Holder

700 V

315 A

Tab/Blade

12 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0350

Littelfuse

Electric Fuse

Inline/Holder

700 V

350 A

Tab/Blade

15.5 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

400 A

Tab/Blade

23 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0450

Littelfuse

Electric Fuse

Inline/Holder

700 V

450 A

Tab/Blade

26 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD30LI0500

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 A

Tab/Blade

41 J

200 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 1.874 in (40 x 40 x 47.6 mm)

1.874 in (47.6 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.