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

20102500001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 mA

End Cap

130 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20102500021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 mA

End Cap

130 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20102500301P

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 mA

End Cap

130 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20102500531P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 mA

Pin Wire

130 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Tape And Reel

0.232 in (5.9 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20103150001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

315 mA

End Cap

160 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20103150021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

315 mA

End Cap

160 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20103150301P

Littelfuse

Electric Fuse

Inline/Holder

250 V

315 mA

End Cap

160 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20104000001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

280 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20104000021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

280 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20105000001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

350 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20105000021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

350 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20105000301P

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

350 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20105000531P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

500 mA

Pin Wire

350 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Tape And Reel

0.232 in (5.9 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20106300001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

630 mA

End Cap

809 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20106300021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

630 mA

End Cap

809 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20108000001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

800 mA

End Cap

1.1 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20108000021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

800 mA

End Cap

1.1 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20111000001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

2 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20111000021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

2 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20111000431P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Tape And Reel

0.232 in (5.9 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20111250001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1.25 A

End Cap

5.12 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

20111250021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1.25 A

End Cap

5.12 J

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

400NH2GL

Altech

Electric Fuse

Inline/Holder

500 V

400 A

Tab/Blade

Bulk

2.559 in (65 mm)

2.087 in (53 mm)

2.362 in (60 mm)

Slow

20C14X51GI

Altech

Electric Fuse

Inline/Holder

690 V

20 A

End Cap

80 kA

Bulk

0.551 in (14 mm)

0.551 x 2.008 in (14 x 51 mm)

2.008 in (51 mm)

CE; IEC

Slow

NH00CG4

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

4 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.02 in (51.3 mm)

0.787 in (20 mm)

Indicator

2.02 x 0.787 x 2.126 in (51.3 x 20 x 54 mm)

2.126 in (54 mm)

VDE

NH00CG50

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

50 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.02 in (51.3 mm)

0.787 in (20 mm)

Indicator

2.02 x 0.787 x 2.126 in (51.3 x 20 x 54 mm)

2.126 in (54 mm)

VDE

NH00G125

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

125 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.22 in (56.4 mm)

1.181 in (30 mm)

Indicator

2.22 x 1.181 x 2.126 in (56.4 x 30 x 54 mm)

2.126 in (54 mm)

VDE

NH0G25

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

25 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.1 in (53.34 mm)

1.181 in (30 mm)

Indicator

2.1 x 1.181 x 2.76 in (53.34 x 30 x 70.11 mm)

2.76 in (70.11 mm)

VDE

NH1CG160

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

160 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.22 in (56.4 mm)

1.181 in (30 mm)

Indicator

2.22 x 1.181 x 2.835 in (56.4 x 30 x 72 mm)

2.835 in (72 mm)

VDE

NH1CG32

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

32 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.22 in (56.4 mm)

1.181 in (30 mm)

Indicator

2.22 x 1.181 x 2.835 in (56.4 x 30 x 72 mm)

2.835 in (72 mm)

VDE

NH1CG63

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

63 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.22 in (56.4 mm)

1.181 in (30 mm)

Indicator

2.22 x 1.181 x 2.835 in (56.4 x 30 x 72 mm)

2.835 in (72 mm)

VDE

3AP12-R

Bel Fuse

Electric Fuse

Through Hole Mount

125 V

12 A

Pin Wire

501 J

-55 °C (-67 °F)

10 kA

Pre-Arcing Time: Open within 5 s, at 200% Rated Current

Bulk; Tape And Reel

0.272 in (6.9 mm)

250 V

0.272 x 1.28 in (6.9 x 32.5 mm)

1.28 in (32.5 mm)

CE; CSA; PSE

125 °C (257 °F)

Fast

3AP300-R

Bel Fuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

44 mJ

-55 °C (-67 °F)

200 A

Pre-Arcing Time: Open within 5 s, at 200% Rated Current

Bulk; Tape And Reel

0.272 in (6.9 mm)

250 V

0.272 x 1.28 in (6.9 x 32.5 mm)

1.28 in (32.5 mm)

CE; CSA; UL

125 °C (257 °F)

Fast

KLK15

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

15 A

End Cap

100 kA

2 m

Pre Arcing Time: Open within 120 s at 200% Rated Current

0.406 in (10.31 mm)

600 V

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; QPL; UL

Fast

593006

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

6 A

End Cap

Nickel

593

F0402E0R50FSTR

KYOCERA AVX

Electric Fuse

Surface Mount

32 V

32 V

500 mA

Wraparound

300 μJ

-55 °C (-67 °F)

Tin with Nickel barrier

50 A

Tape And Reel, 7 inch

0.039 in (1 mm)

0.022 in (0.55 mm)

e3

0402

0.039 x 0.022 x 0.016 in (1 x 0.55 x 0.4 mm)

0.016 in (0.4 mm)

125 °C (257 °F)

Fast

FCD121200TP

Littelfuse

Electric Fuse

Surface Mount

32 V

64 V

2 A

Wraparound

4.7 J

-55 °C (-67 °F)

Tin

50 A

FCD12

Tape And Reel

0.126 in (3.2 mm)

0.063 in (1.6 mm)

e3

0.126 x 0.063 x 0.024 in (3.2 x 1.6 x 0.6 mm)

0.024 in (0.6 mm)

IEC; UL

125 °C (257 °F)

Fast

LPN-RK-110SPI

Cooper Industries

Electric Fuse

Inline/Holder

250 V

250 V

110 A

Tab/Blade

300 kA

LPN-RK

Rated Breaking Capacity at 250 VDC: 100000 A

Box

1.61 in (40.89 mm)

Indicator

1.61 x 7.13 in (40.89 x 181.1 mm)

7.13 in (181.1 mm)

CSA; UL

Time Delay

213002

Littelfuse

Electric Fuse

Inline/Holder

250 V

2 A

End Cap

92.7 J

-55 °C (-67 °F)

Tin

100 A

Bulk; Tape And Reel

0.205 in (5.2 mm)

e3

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; IEC; PSE; SEMKO; UL

125 °C (257 °F)

Time Lag

213004

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

202 J

-55 °C (-67 °F)

Nickel

100 A

20 ms

Pre Arcing Time: Open within 0.02 s at 1000% Rated Current

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; IEC; PSE; SEMKO; UL

125 °C (257 °F)

Time Lag

KLC10

Littelfuse

Electric Fuse

Inline/Holder

600 V

10 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

KLC15

Littelfuse

Electric Fuse

Inline/Holder

600 V

15 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

KLC1

Littelfuse

Electric Fuse

Inline/Holder

600 V

1 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

KLC20

Littelfuse

Electric Fuse

Inline/Holder

600 V

20 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

KLC2

Littelfuse

Electric Fuse

Inline/Holder

600 V

2 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

KLC30

Littelfuse

Electric Fuse

Inline/Holder

600 V

30 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

KLC3

Littelfuse

Electric Fuse

Inline/Holder

600 V

3 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

KLC4

Littelfuse

Electric Fuse

Inline/Holder

600 V

4 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

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.