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

0263004L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

Tin

50 A

263

Tape And Reel

0.145 in (3.68 mm)

e3

0.145 x 0.3 in (3.68 x 7.62 mm)

0.3 in (7.62 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0481004.HXLP

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

0677004.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

4 A

Pin Wire

95 J

Tin Lead

40 A

95

Bulk

0.154 in (3.9 mm)

e0

250 V

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; IEC; UL; VDE

Slow

0251004.HX

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, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

Bulk

0.11 in (2.8 mm)

e3

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

0202004.H

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Flat

3 J

-55 °C (-67 °F)

Tin/Lead

50 A

2 s

3

Bulk

0.372 in (9.45 mm)

0.25 in (6.35 mm)

e0

250 V

0.372 x 0.25 x 0.165 in (9.45 x 6.35 x 4.19 mm)

0.165 in (4.19 mm)

CSA, UL

125 °C (257 °F)

Fast

SPXC004.TXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

56 J

15 kA

4 m

Bulk

0.406 in (10.31 mm)

0.394 x 2.244 in (10 x 57 mm)

2.252 in (57.2 mm)

CE; UL

Fast

263004HX

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

50 A

4 h

3.08

0.155 in (3.94 mm)

250 V

19.3 mΩ

Pico

0.28 in (7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0324004.HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

4 A

Pin Wire

10.4 J

-55 °C (-67 °F)

Tin

750 A

Rated Breaking Capacity at 125 VDC: 10000 A

10.4

Bulk

0.275 in (6.99 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Fast

0251004TL

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

Tape And Reel

0.095 in (2.41 mm)

e3

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

0451004.NR

Littelfuse

Electric Fuse

4 A

-55 °C (-67 °F)

50 A

4 h

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

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)

CE, CSA, UL

125 °C (257 °F)

Very Fast

0232004.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

37.73 J

-60 °C (-76 °F)

Tin

10 kA

2 m

Pre Arcing Time: Open within 2 m at 200% Rated Current

Bulk

0.217 in (5.5 mm)

e3

0.197 x 0.787 in (5 x 20 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.846 in (21.5 mm)

CE; KC; PSE

125 °C (257 °F)

Medium

0263004.MRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

Pure Tin

50 A

0263

Tape And Reel

0.155 in (3.94 mm)

0.155 x 0.28 in (3.94 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

218004.P

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

69.088 J

-55 °C (-67 °F)

Tin

40 A

218P

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; KTL; PSE; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

0251004.MR

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, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

Tape And Reel

0.11 in (2.8 mm)

e3

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

225004

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

9.4 J

10 kA

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

0263004.HRT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

Pure Tin

50 A

100 ms

3.08

Tape And Reel

0.155 in (3.94 mm)

250 V

Pico

0.155 x 0.28 in (3.94 x 7.11 mm)

CSA, PSE, UL

125 °C (257 °F)

Very Fast

0664004.

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

77 J

-40 °C (-40 °F)

Tin

100 A

664

0.335 in (8.5 mm)

e3

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC; CSA; KTL; METI; PSE; UL; VDE

85 °C (185 °F)

Time Lag

0263004.WXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

Pure Tin

50 A

0263

Bulk

0.155 in (3.94 mm)

0.155 x 0.28 in (3.94 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

473004

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-55 °C (-67 °F)

50 A

Pre Arcing Time: Open within 0.02 s at 800% Rated Current

Tape And Reel

0.125 in (3.18 mm)

0.125 x 0.28 in (3.18 x 7.11 mm)

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Slow

0251004.PAT1

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

CCMR004.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

4 A

End Cap

200 kA

CCMR

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

AGC4

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

4 A

End Cap

0.25 in (6.35 mm)

32 V

3AG

1.25 in (31.75 mm)

DZ27F4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

4 A

End Cap

80 kA

DZ

Rated Breaking Capacity at 500 VDC: 80000 A

0.846 in (21.5 mm)

Indicator

0.846 x 1.969 in (21.5 x 50 mm)

1.969 in (50 mm)

DIN; IEC; VDE

Fast

0297004LXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

17 J

-40 °C (-40 °F)

0297

Rated Breaking Capacity at 32 VDC: 1000 A

0.429 in (10.9 mm)

0.15 in (3.8 mm)

0.429 x 0.15 x 0.346 in (10.9 x 3.8 x 8.8 mm)

0.346 in (8.8 mm)

125 °C (257 °F)

3821400000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

58 J

-40 °C (-40 °F)

Matte Tin

100 A

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

e3

20 ms

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; IEC; KTL; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

0272004.V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

-55 °C (-67 °F)

Tin

100 kA

4 h

Bulk

0.235 in (5.97 mm)

e3

125 V

Micro

0.235 x 0.287 in (5.97 x 7.3 mm)

0.287 in (7.3 mm)

CSA, UL

125 °C (257 °F)

Very Fast

3961400000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

27 J

-40 °C (-40 °F)

Matte Tin

100 A

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

60 s

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

CSA; METI; PSE; UL

85 °C (185 °F)

Time Lag

0253004.MAT3L

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

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)

CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

016004.MR

Littelfuse

Electric Fuse

Surface Mount

250 V

4 A

Wraparound

122.5 J

-55 °C (-67 °F)

50 A

2 m

Pre Arcing Time: Open within 120 s at 250% Rated Current

Tape And Reel

0.429 in (10.9 mm)

0.189 in (4.8 mm)

Nano

0.189 in (4.8 mm)

CUL; PSE; UL

125 °C (257 °F)

Time Delay

SFE4CABP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

4 A

End Cap

0.25 in (6.35 mm)

32 V

0.625 in (15.875 mm)

LA15QS4-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

4 A

End Cap

7 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

0251004.MAHF

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

0251

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.11 in (2.8 mm)

e3

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

0452004.NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

34.4 J

-55 °C (-67 °F)

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

2311400002

Littelfuse

Electric Fuse

Inline/Holder

500 V

4 A

End Cap

1.6 J

-25 °C (-13 °F)

Nickel

1 kA

Bulk

0.248 in (6.3 mm)

500 V

1 ms

3AB

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

70 °C (158 °F)

Very Fast

215004.P

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

37.684 J

-55 °C (-67 °F)

Nickel

1.5 kA

215P

Bulk; Tape And Reel

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Time Lag

SPXI004.TXB

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

57 J

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.362 in (85.4 mm)

TUV; UL

0664004.MALL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

77 J

-40 °C (-40 °F)

Tin

100 A

664

Ammo Pack

0.335 in (8.5 mm)

e3

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC; CSA; KTL; METI; PSE; UL; VDE

85 °C (185 °F)

Time Lag

0230004.MXF32P

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Matte Tin

400 A

Bulk

0.185 in (4.7 mm)

e3

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

0481004.HXLMP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

4 A

End Cap

36 J

-55 °C (-67 °F)

300 A

5 m

0.839 in (21.3 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

SPXV004.LXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

14 J

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.333 in (84.65 mm)

CE; CUL; IEC; UL

Fast

0997004WXN

Littelfuse

Electric Fuse

Inline/Holder

58 V

4 A

Tab/Blade

17 J

-40 °C (-40 °F)

Silver

1 kA

Rated Breaking Capacity at 58 VDC: 1000 A

Bulk

0.429 in (10.9 mm)

0.14 in (3.55 mm)

e4

0.429 x 0.14 x 0.346 in (10.9 x 3.55 x 8.8 mm)

0.346 in (8.8 mm)

125 °C (257 °F)

3541400002

Littelfuse

Electric Fuse

Inline/Holder

440 V

4 A

End Cap

43 J

-25 °C (-13 °F)

Nickel

1 kA

Bulk

0.248 in (6.3 mm)

440 V

20 ms

3AB

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

UL

70 °C (158 °F)

Fast

0476004.MRSN

Littelfuse

Electric Fuse

Surface Mount

250 V

125 V

4 A

Wraparound

2.82 J

-55 °C (-67 °F)

Tin

100 A

1 ms

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1 ms at 1000% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e3

Nano

0.106 in (2.69 mm)

CUL; PSE; UL

125 °C (257 °F)

Fast

0662004

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

4 A

Pin Wire

7.9 J

-40 °C (-40 °F)

Matte Tin

40 A

662

Rated Breaking Capacity at 250 VDC: 40 A

0.335 in (8.5 mm)

e3

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC; KTL; PSE; UL

85 °C (185 °F)

Fast

80414000440

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Wire

368 J

-40 °C (-40 °F)

Tin

150 A

1 s

Bulk

0.488 in (12.4 mm)

0.252 in (6.4 mm)

e3

250 V

TE7

0.488 x 0.252 x 0.386 in (12.4 x 6.4 x 9.8 mm)

0.362 in (9.2 mm)

125 °C (257 °F)

Time Lag

0219004.MRAET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

330 J

-55 °C (-67 °F)

150 A

330

Tape And Reel

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.217 x 0.846 in (5.5 x 21.5 mm)

0.846 in (21.5 mm)

BSI, CCC, CE, CSA, PSE, UL, VDE

125 °C (257 °F)

Time Lag

3254MMXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

9.71 J

-55 °C (-67 °F)

Matte Tin

400 A

Bulk

0.275 in (6.99 mm)

e3

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0230004.DRT1SSP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Matte Tin

400 A

Tape And Reel

0.185 in (4.7 mm)

e3

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

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.