4 A Fuses 1,332

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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

0263004.WXL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

50 A

100 ms

Bulk

0.155 in (3.94 mm)

250 V

Pico

CSA, PSE, UL

125 °C (257 °F)

Very Fast

142.6185.440.2

Littelfuse

Electric Fuse

Inline/Holder

58 V

4 A

Tab/Blade

25 J

Tin

Rated Breaking Capacity at 58 VDC: 1000 A

0.748 in (19 mm)

0.197 in (5 mm)

e3

0.748 x 0.197 x 0.52 in (19 x 5 x 13.2 mm)

0.52 in (13.2 mm)

UL

L15S004

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

4 A

End Cap

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 150 VDC: 20000 A

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0237004.

Littelfuse

Electric Fuse

4 A

End Cap

10 kA

0.205 in (5.2 mm)

Supplemental

125 V

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE, CSA, PSE, UL

Medium

3701400041

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

6.7 J

-40 °C (-40 °F)

40 A

Bulk

0.335 in (8.5 mm)

20 ms

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Fast

KLA4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

4 A

End Cap

100 kA

KLA

Rated Breaking Capacity at 150 VDC: 20000 A

0.406 in (10.3 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

0267004.V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.093 in (2.36 mm)

Supplemental

e4

125 V

Pico

0.093 x 0.28 in (2.36 x 7.11 mm)

0.28 in (7.11 mm)

CSA; QPL

125 °C (257 °F)

Very Fast

313004ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

76.1 J

200 A

0.25 in (6.35 mm)

Indicator

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; METI; PSE; UL

Slow

0251004.VXT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Matte Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

2.45

Bulk

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0473004.YXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-55 °C (-67 °F)

Pure Tin

50 A

Bulk

0.135 in (3.43 mm)

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

217004XP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

30 J

-55 °C (-67 °F)

Matte Tin

40 A

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; KTL; PSE; SEMKO; UL

125 °C (257 °F)

Fast

0663004.HXSL

Littelfuse

Electric Fuse

4 A

-40 °C (-40 °F)

40 A

80

0.335 in (8.5 mm)

250 V

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC, CSA, METI, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

2CO004

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 V

4 A

Tab/Blade

200 kA

2CO

Rated Breaking Capacity at 250 VDC: 80000 A

0.827 in (21 mm)

0.827 x 2.205 in (21 x 56 mm)

2.205 in (56 mm)

CSA

0676004.

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

14.6 J

Tin Lead

40 A

676

0.154 in (3.9 mm)

e0

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CCC; CSA; UL; VDE

Fast

3431400002

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

500 J

-25 °C (-13 °F)

200 A

Bulk

0.248 in (6.3 mm)

12 s

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

CSA; UL

70 °C (158 °F)

Time Delay

1251400100

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

Tab/Blade

14.5 J

-40 °C (-40 °F)

1 kA

Bulk

0.465 in (11.8 mm)

0.15 in (3.8 mm)

20 ms

0.638 in (16.2 mm)

85 °C (185 °F)

Very Fast

229004

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

148 J

-55 °C (-67 °F)

Nickel

400 A

0.177 in (4.5 mm)

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE; METI; PSE; UL

125 °C (257 °F)

Slow

215004M

Littelfuse

Electric Fuse

4 A

End Cap

-55 °C (-67 °F)

1.5 kA

46.96

0.787 in (20 mm)

Supplemental

250 V

18.4 mΩ

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

BSI; CCC; CE; CSA; PSE; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

02174.0MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

60 V

4 A

End Cap

29.165 J

-55 °C (-67 °F)

40 A

10 ms

Rated Breaking Capacity at 60 VDC: 70 A, Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; CUL; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

229004PMXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

148 J

-55 °C (-67 °F)

Tin

400 A

Bulk

0.177 in (4.5 mm)

e3

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE; METI; PSE; UL

125 °C (257 °F)

Slow

236004

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

17.6 J

236

0.207 in (5.25 mm)

0.207 x 0.886 in (5.25 x 22.5 mm)

0.886 in (22.5 mm)

CSA; MITI; UL

Fast

RF1568-000

Littelfuse

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

1.15 J

35 A

UL

125 °C (257 °F)

Very Fast

0314004.MX52LP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

10.4 J

-55 °C (-67 °F)

Nickel

750 A

10.4

0.25 in (6.35 mm)

250 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Fast

0473004.MXT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-55 °C (-67 °F)

Tin

50 A

35

Bulk

0.135 in (3.43 mm)

e3

125 V

Pico

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

0977004.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

500 V

450 V

4 A

Pin Wire

124 J

-55 °C (-67 °F)

100 A

Rated Breaking Capacity at 450 VDC: 200 A

124

Bulk

0.228 in (5.8 mm)

500 V

0.197 x 0.787 in (5 x 20 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

CE; PSE; SEMKO

125 °C (257 °F)

Time Lag

0481004.VXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

4 A

End Cap

36 J

-55 °C (-67 °F)

Tin

300 A

5 m

0.839 in (21.3 mm)

0.228 in (5.8 mm)

e3

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

0481004VXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

4 A

End Cap

15.4 J

-55 °C (-67 °F)

Tin

300 A

Rated Breaking Capacity at 125 VDC: 200 A

Bulk

e3

Alarm

CSA; UL

90 °C (194 °F)

0251004.HAT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

Ammo Pack

0.11 in (2.8 mm)

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0253004.MAL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0253004.HAL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0216004.MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

14.995 J

-55 °C (-67 °F)

Tin

1.5 kA

14.995

Bulk

0.205 in (5.2 mm)

e3

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; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

0251004.HXT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Matte Tin

50 A

4 ms

Rated Breaking Capacity at 125 VDC: 300 A

2.45

Bulk

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

39814000000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

4 A

Pin Wire

41.12 J

-40 °C (-40 °F)

Tin

50 A

10 s

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

TE5

0.315 in (8 mm)

CUL; UL

125 °C (257 °F)

Medium Time Lag

0313004.IDHXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

76.1 J

-55 °C (-67 °F)

Matte Tin

200 A

Bulk

0.25 in (6.35 mm)

e3

Indicator

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Time Lag

0208004.DRT1

Littelfuse

Electric Fuse

4 A

End Cap

9.4 J

-55 °C (-67 °F)

100 A

Tape And Reel

0.189 in (4.8 mm)

350 V

2AG

0.189 x 0.587 in (4.8 x 14.9 mm)

0.587 in (14.9 mm)

CE, PSE, UL

125 °C (257 °F)

Fast

265004

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

4 h

Rated Breaking Capacity at 125 VDC: 300 A

0.28 in (7.11 mm)

0.093 in (2.36 mm)

Supplemental

e4

125 V

23 mΩ

Pico

0.28 x 0.093 x 0.093 in (7.11 x 2.36 x 2.36 mm)

0.093 in (2.36 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0230004.MXSP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Tin

400 A

4 h

148

Bulk

0.185 in (4.7 mm)

e3

125 V

2AG

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

R451004.

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.152 J

50 A

451

CSA; UL

Very Fast

SOO004

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

10 kA

UL

Time Delay

592004

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

4 A

End Cap

Nickel

592

0209004MXP

Littelfuse

Electric Fuse

Inline/Holder

350 V

4 A

End Cap

148 J

-55 °C (-67 °F)

Tin

100 A

Bulk

0.177 in (4.5 mm)

e3

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE; PSE; UL

125 °C (257 °F)

Time Lag

429004WR

Littelfuse

Electric Fuse

Surface Mount

24 V

24 V

4 A

Wraparound

1.5 J

-55 °C (-67 °F)

Tin Lead Over Nickel

35 A

429

Rated Breaking Capacity at 24 VDC: 35 A

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e0

0.125 x 0.06 x 0.045 in (3.18 x 1.52 x 1.14 mm)

0.045 in (1.14 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0452004.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

34.4 J

-55 °C (-67 °F)

Gold

50 A

0452

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

3264MHXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

9.71 J

-55 °C (-67 °F)

Matte Tin

400 A

Bulk

0.25 in (6.35 mm)

e3

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

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

225004M

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

9.4 J

10 kA

Bulk

0.177 in (4.5 mm)

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; METI; PSE; UL

Fast

0216004.MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

14.995 J

-55 °C (-67 °F)

Tin

1.5 kA

14.995

Bulk

0.205 in (5.2 mm)

e3

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; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

0449004.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

40.8 J

-55 °C (-67 °F)

Gold

50 A

2 ms

40.8

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CUL; UL

125 °C (257 °F)

Slow

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.