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

0313004.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

76.1 J

-60 °C (-76 °F)

Nickel

200 A

5 s

76.1

Bulk

0.25 in (6.35 mm)

Supplemental

250 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

0471004.NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

10.6 J

-55 °C (-67 °F)

Tin

50 A

4 h

Tape And Reel

0.11 in (2.8 mm)

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

PSE; UL

125 °C (257 °F)

Time Lag

0473004.MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-60 °C (-76 °F)

Tin

50 A

2 ms

Pre Arcing Time: Blow within 0.002 s at 800% Rated Current

35

Ammo Pack

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 Delay

1206SFS400F/32-2

TE Connectivity

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

2.2 J

-55 °C (-67 °F)

50 A

4 h

Tape And Reel

0.126 in (3.2 mm)

0.063 in (1.6 mm)

1206

0.126 x 0.063 x 0.038 in (3.2 x 1.6 x 0.97 mm)

0.038 in (0.97 mm)

UL

125 °C (257 °F)

Slow

36914000000

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

4 A

Pin Wire

126.4 J

-40 °C (-40 °F)

Matte Tin

50 A

20 s

100

Ammo Pack

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

300 V

TE5

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

0.315 in (8 mm)

CUL; PSE; UL; VDE

85 °C (185 °F)

Time Lag

37314000410

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.5 J

-40 °C (-40 °F)

Matte Tin

50 A

5 s

Bulk

0.335 in (8.5 mm)

e3

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA; CUL; UL

85 °C (185 °F)

Very Fast

80714000000

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

4 A

Wire

36.8 kJ

-40 °C (-40 °F)

Matte Tin

100 A

1 s

Ammo Pack

0.488 in (12.4 mm)

0.252 in (6.4 mm)

e3

300 V

0.488 x 0.252 x 0.362 in (12.4 x 6.4 x 9.2 mm)

0.362 in (9.2 mm)

IEC; CUL; PSE; UL

125 °C (257 °F)

Time Lag

KLDR004.HXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

4 A

End Cap

Nickel

200 kA

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

KLDR004HXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

4 A

End Cap

83.81 J

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

KLKD004.HXR

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

4 A

End Cap

19 mJ

-55 °C (-67 °F)

100 kA

4 m

0.406 in (10.31 mm)

600 V

0.394 x 1.496 in (10 x 38 mm)

1.5 x 0.406 x 1.5 in (38.1 x 10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

SF-0402S400-2

Bourns

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

114.5 mJ

-20 °C (-4 °F)

Tin Over Nickel

35 A

5 s

Tape And Reel, 7 inch

0.039 in (1 mm)

0.02 in (0.52 mm)

e3

0402

0.039 x 0.02 x 0.014 in (1 x 0.52 x 0.35 mm)

0.014 in (0.35 mm)

UL

105 °C (221 °F)

Slow

SF-1206FP400-2

Bourns

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

1.109 J

-20 °C (-4 °F)

Tin Over Nickel

50 A

Tape And Reel, 7 inch

0.122 in (3.1 mm)

0.061 in (1.55 mm)

e3

5 s

1206

0.122 x 0.061 x 0.024 in (3.1 x 1.55 x 0.6 mm)

0.024 in (0.6 mm)

UL

105 °C (221 °F)

Fast

SF-2410FP400W-2

Bourns

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

4.14 J

-55 °C (-67 °F)

Tin Over Nickel

50 A

10 ms

Tape And Reel, 7 inch

0.24 in (6.1 mm)

0.098 in (2.49 mm)

2410

0.085 in (2.16 mm)

UL

125 °C (257 °F)

Fast

TR2/6125FF4-R

Eaton Corporation

Electric Fuse

Surface Mount

125 V

72 V

4 A

Wraparound

7.4 J

-55 °C (-67 °F)

50 A

Rated Breaking Capacity at 72 VDC: 50 A

7.4

Tape And Reel

0.107 in (2.72 mm)

0.107 in (2.72 mm)

125 V

0.107 x 0.107 x 0.24 in (2.72 x 2.72 x 6.1 mm)

0.24 in (6.1 mm)

CUL; UL

125 °C (257 °F)

Fast

37014000000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

6.7 J

-40 °C (-40 °F)

Matte Tin

40 A

20 ms

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; CE; CUL; PSE; UL; VDE

85 °C (185 °F)

Fast

BK/S506-4-R

Eaton Corporation

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

71.8 J

Nickel

40 A

71.8

Bulk

0.205 in (5.2 mm)

250 V

20 ms

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)

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

Time Delay

BK1-S505-4-R

Eaton Corporation

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

38.45 J

-55 °C (-67 °F)

Nickel

1.5 kA

38.45

Bulk

0.205 in (5.2 mm)

250 V

10 ms

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)

BSI, CCC, CSA, CUL, IMQ, KC, PSE, SEMKO, UL, VDE

125 °C (257 °F)

Time Delay

BK1-S505H-4-R

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

400 V

4 A

End Cap

38.45 J

100 A

Rated Breaking Capacity at 400 VDC: 1500 A

Bag

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CCC; PSE/JET; TUV; UL

Time Delay

BK1/S501-4-R

Eaton Corporation

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

14 J

Nickel

1.5 kA

14

Bag

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)

BSI; CCC; CSA; IMQ; MITI; SEMKO; UL; VDE

Fast

BK1/S505-4-R

Cooper Industries

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

38.45 J

Nickel

1.5 kA

S505

Bag

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

BSI; CCC/CQC; CSA; IEC; IMQ; KC; PSE/JET; SEMKO; UL; VDE

Time Delay

BK1/S506-4-R

Eaton Corporation

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

71.8 J

Nickel

40 A

71.8

Bag

0.205 in (5.2 mm)

250 V

20 ms

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)

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

Time Delay

CB61F4A-TR2

Eaton Corporation

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

4.4 J

-55 °C (-67 °F)

Silver Over Nickel

100 A

5 s

Pre Arcing Time: Open within 5 s at 200% Rated Current, Rated Breaking Capacity at 125 VDC: 300 A

4.4

Tape And Reel, 13 inch

0.24 in (6.1 mm)

0.101 in (2.57 mm)

e4

125 V

2410

0.24 x 0.101 x 0.101 in (6.1 x 2.57 x 2.57 mm)

0.101 in (2.57 mm)

CQC; CUL; PSE; UL

125 °C (257 °F)

Fast

PV-4A10F85L

Eaton Corporation

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

15 J

30 kA

Bulk

0.406 in (10.3 mm)

0.394 x 3.346 in (10 x 85 mm)

3.346 in (85 mm)

IEC; UL

TR1-2410TD4-R

Eaton Corporation

Electric Fuse

Surface Mount

250 V

60 V

4 A

Wraparound

-55 °C (-67 °F)

50 A

1 m

Rated Breaking Capacity at 60 VDC: 50 A

Tape And Reel, 8.66 inch

0.24 in (6.1 mm)

0.107 in (2.72 mm)

2410

0.107 in (2.72 mm)

CUL; UL

125 °C (257 °F)

Time Delay

TR1/6125TD4-R

Eaton Corporation

Electric Fuse

Surface Mount

125 V

60 V

4 A

Wraparound

38.8 J

50 A

Rated Breaking Capacity at 60 VDC: 50 A

Tape And Reel

0.107 in (2.72 mm)

0.107 in (2.72 mm)

125 V

6125

0.107 x 0.107 x 0.24 in (2.72 x 2.72 x 6.1 mm)

0.24 in (6.1 mm)

CSA; UL

Time Delay

SF-1206F400-2

Bourns

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

954 mJ

-20 °C (-4 °F)

Tin Over Nickel

50 A

1 m

Tape And Reel, 7 inch

0.122 in (3.1 mm)

0.061 in (1.55 mm)

e3

1206

0.122 x 0.061 x 0.024 in (3.1 x 1.55 x 0.6 mm)

0.024 in (0.6 mm)

UL

105 °C (221 °F)

Fast

0913029

Phoenix Contact

Electric Fuse

Inline/Holder

400 V

250 V

4 A

End Cap

-60 °C (-76 °F)

0.433 in (11 mm)

1.417 in (36 mm)

EAC

85 °C (185 °F)

0913731

Phoenix Contact

Electric Fuse

Inline/Holder

24 V

24 V

4 A

Tab/Blade

0.748 in (19 mm)

0.197 in (5 mm)

0.512 in (13 mm)

EAC

0215004MXESPP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

46.96 J

-55 °C (-67 °F)

Tin

1.5 kA

Bulk

0.205 in (5.2 mm)

e3

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; CQC; IEC; KC; PSE; VDE; UL

125 °C (257 °F)

Time Lag

0263004.MXL

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

0219004.MXAEP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

Pin Wire

330 J

-55 °C (-67 °F)

Tin

150 A

20 ms

330

0.217 in (5.5 mm)

e3

250 V

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)

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

125 °C (257 °F)

Time Lag

0230004.DRT2P

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

0476004.MR

Littelfuse

Electric Fuse

Surface Mount

250 V

125 V

4 A

Wraparound

2.82 J

-55 °C (-67 °F)

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)

Nano

0.106 in (2.69 mm)

CUL; PSE; UL

125 °C (257 °F)

Fast

0481004.VXLMP

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

NH00M4

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

4 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.126 in (54 mm)

1.181 in (30 mm)

Indicator

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

2.22 in (56.4 mm)

DIN 43620; IEC; VDE

0402SFF400F/24

Littelfuse

Electric Fuse

Surface Mount

24 V

4 A

Wraparound

-55 °C (-67 °F)

Tin with Nickel barrier

35 A

4 h

Rated Breaking Capacity at 24 VDC: 35 A

0.225

0.039 in (1 mm)

0.02 in (0.51 mm)

e3

24 V

0.039 x 0.02 x 0.02 in (1 x 0.51 x 0.51 mm)

0.02 in (0.51 mm)

UL

125 °C (257 °F)

Fast

0452004.NRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

34.4 J

-55 °C (-67 °F)

Gold

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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)

CSA; CUL; UL

125 °C (257 °F)

Slow

0315004.MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

76.1 J

-55 °C (-67 °F)

200 A

5 s

Bulk

0.275 in (6.985 mm)

3AG

1.275 in (32.39 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Slow

224004

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

9.4 J

Tin Lead

10 kA

0.177 in (4.5 mm)

e0

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; METI; PSE; UL

Fast

0312004.VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

28.5 J

-55 °C (-67 °F)

Nickel

200 A

312

Bulk

0.25 in (6.35 mm)

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)

Fast

NLN004

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

4 A

End Cap

50 kA

Rated Breaking Capacity at 250 VDC; 20000

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

0473004.YAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-60 °C (-76 °F)

Tin

50 A

2 ms

Pre Arcing Time: Blow within 0.002 s at 800% Rated Current

35

Ammo Pack

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 Delay

0877004.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

143.4 J

-55 °C (-67 °F)

Tin

40 A

143.4

Bulk

0.142 in (3.6 mm)

e3

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

IEC; UL; VDE

125 °C (257 °F)

Slow

0251004.NRL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

4 ms

Rated Breaking Capacity at 125 VDC: 300 A

2.45

Tape And Reel

0.11 in (2.8 mm)

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

0471004.NAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

10.6 J

-55 °C (-67 °F)

Tin

50 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)

PSE; UL

125 °C (257 °F)

Time Lag

RF0347-000

Littelfuse

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

2.3 J

50 A

UL

125 °C (257 °F)

Slow

0253004.PXT3L

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

Bulk

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

FLNR4ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

4 A

End Cap

200 kA

0.563 in (14.3 mm)

Indicator

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

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.