20 A Fuses 679

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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

0325020.MXDP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

20 A

Pin Wire

2.507 kJ

-55 °C (-67 °F)

Matte Tin

1.5 kA

4 h

2500

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; UL

125 °C (257 °F)

Time Lag

276020

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

20 A

Pin Wire

-55 °C (-67 °F)

Tin

50 A

276

Rated Breaking Capacity at 32 VDC: 300 A

0.133 in (3.38 mm)

e3

0.133 x 0.31 in (3.38 x 7.87 mm)

0.31 in (7.87 mm)

CSA; UL

125 °C (257 °F)

Very Fast

TLS020LS

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

Tab/Blade

Silver

100 kA

0.563 in (14.3 mm)

e4

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

CE; UL

NLN20

Littelfuse

Electric Fuse

20 A

End Cap

50 kA

2 in (50.8 mm)

K5

250 V

2 in (50.8 mm)

CE; CSA; UL

Fast

142.6185.5202

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

600 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

AGC.500

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

3AG

1.25 in (31.75 mm)

Normal

3412200002

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

1.8 kJ

-25 °C (-13 °F)

1.5 kA

Bulk

0.248 in (6.3 mm)

120 s

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

CSA; UL

70 °C (158 °F)

Medium Time Lag

324020.MX280P

Littelfuse

Electric Fuse

Through Hole Mount

280 V

20 A

Pin Wire

Tin

50 A

324P

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; METI; PSE; UL

Fast

313020P

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

9.56 kJ

Tin

300 A

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

Slow

LDN20ES

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

20 A

End Cap

80 kA

LDN

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 18.875 in (76.2 x 479.43 mm)

18.875 in (479.43 mm)

Medium

0495020TXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

1.75 kJ

-40 °C (-40 °F)

1 kA

495

Bulk

0.555 in (14.1 mm)

0.476 in (12.1 mm)

0.555 x 0.476 x 1.063 in (14.1 x 12.1 x 27 mm)

1.063 in (27 mm)

125 °C (257 °F)

0327020.YX2S

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

400 J

-40 °C (-40 °F)

1 kA

20 ms

Bulk

0.358 in (9.1 mm)

0.15 in (3.8 mm)

32 V

Micro

0.602 in (15.3 mm)

125 °C (257 °F)

0456020.DR

Littelfuse

Electric Fuse

Surface Mount

125 V

100 V

20 A

Wraparound

18 J

-55 °C (-67 °F)

Silver

100 A

4 h

Rated Breaking Capacity at 100 VDC: 300 A

18

Tape And Reel

0.398 in (10.1 mm)

0.123 in (3.12 mm)

e4

125 V

Nano

0.398 x 0.123 x 0.123 in (10.1 x 3.12 x 3.12 mm)

0.123 in (3.12 mm)

PSE; UL

125 °C (257 °F)

Very Fast

20E1C15.5

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

20 A

End Cap

80 kA

5 m

3 in (76.2 mm)

Striker

3 x 18.875 in (76.2 x 479.43 mm)

18.875 in (479.43 mm)

Medium

169.6885.5201

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

1.9 kJ

169

Rated Breaking Capacity at 32 VDC: 1000 A

1.169 in (29.7 mm)

0.358 in (9.1 mm)

1.169 x 0.358 x 0.839 in (29.7 x 9.1 x 21.3 mm)

0.839 in (21.3 mm)

UL

CCK020

Littelfuse

Electric Fuse

Inline/Holder

125 V

20 A

Tab/Blade

10 kA

0.56 in (14.22 mm)

0.51 x 2.454 in (12.95 x 62.33 mm)

3.07 in (77.98 mm)

Time Delay

0481020.HXM

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

1.024 kJ

-55 °C (-67 °F)

300 A

5 m

0.701 in (17.8 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

FLQ020

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

20 A

End Cap

10 kA

0.406 in (10.31 mm)

500 V

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

AGX20BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

0.25 in (6.35 mm)

32 V

8AG

1 in (25.4 mm)

SPXI020.L

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

20 A

End Cap

701 J

Nickel

30 kA

4 m

Bulk

0.406 in (10.31 mm)

1.5 KV

0.406 x 4.354 in (10.31 x 110.6 mm)

4.333 in (110.06 mm)

CUL; TUV; UL

0318020VX

Littelfuse

Electric Fuse

Through Hole Mount

32 V

20 A

Pin Wire

1.029 kJ

-55 °C (-67 °F)

Tin

300 A

318

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; UL

125 °C (257 °F)

Fast

0294020.MXJ-C

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

-40 °C (-40 °F)

40 ms

0.864 in (21.95 mm)

0.593 in (15.05 mm)

32 V

0.864 x 0.593 x 0.929 in (21.95 x 15.05 x 23.6 mm)

0.929 in (23.6 mm)

125 °C (257 °F)

0318020.HXP

Littelfuse

Electric Fuse

Through Hole Mount

32 V

20 A

Pin Wire

1.414 kJ

-55 °C (-67 °F)

Tin

300 A

10 s

Bulk

0.275 in (6.99 mm)

e3

3AG

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CUL; UL

125 °C (257 °F)

Fast

0257020LXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

520 J

-40 °C (-40 °F)

Tin/Copper

1 kA

0257

Rated Breaking Capacity at 32 VDC: 1000 A

Bulk

0.75 in (19.05 mm)

0.2 in (5.08 mm)

e2

0.75 x 0.2 x 0.48 in (19.05 x 5.08 x 12.19 mm)

0.48 in (12.19 mm)

UL

105 °C (221 °F)

0299020TXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

1.1 kJ

-40 °C (-40 °F)

Silver

Rated Breaking Capacity at 32 VDC: 1000 A

1.15 in (29.21 mm)

0.348 in (8.85 mm)

e4

1.15 x 0.348 x 0.85 in (29.21 x 8.85 x 21.59 mm)

0.85 in (21.59 mm)

125 °C (257 °F)

SFE20CABP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

0.25 in (6.35 mm)

32 V

1.25 in (31.75 mm)

TLS020L

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

Tab/Blade

Silver

100 kA

Rated Breaking Capacity at 170 VDC: 100000 A

0.563 in (14.3 mm)

e4

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

CE; UL

0313020.VXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

9.56 kJ

-55 °C (-67 °F)

Matte Tin

300 A

313

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)

UL

125 °C (257 °F)

Time Lag

0891020.NXWS

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

420 J

-40 °C (-40 °F)

1 kA

100 ms

Bulk

0.429 in (10.9 mm)

0.15 in (3.8 mm)

Mini

0.283 in (7.2 mm)

125 °C (257 °F)

0303020.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

7AG

0.875 in (22.22 mm)

Normal

FLM020.

Littelfuse

Electric Fuse

20 A

End Cap

10 kA

0.406 in (10.3 mm)

250 V

Midget

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CSA, UL

Time Lag

142.6185.520.2

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

600 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

F03A125V20AS

Littelfuse

Electric Fuse

Inline/Holder

125 V

20 A

End Cap

Silver

10 kA

0.25 in (6.35 mm)

e4

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

MIL-PRF-15160/3

0257020.U

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

520 J

-40 °C (-40 °F)

Silver

1 kA

100 ms

Bulk

0.752 in (19.1 mm)

0.201 in (5.1 mm)

e4

0.74 in (18.8 mm)

UL

105 °C (221 °F)

0297020LXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

380 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)

142.6885.5202

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

1.9 kJ

142

Rated Breaking Capacity at 58 VDC: 1000 A

Bulk

1.169 in (29.7 mm)

0.358 in (9.1 mm)

1.169 x 0.358 x 0.839 in (29.7 x 9.1 x 21.3 mm)

0.839 in (21.3 mm)

DIN 72581-3; UL

0318020MX

Littelfuse

Electric Fuse

Through Hole Mount

32 V

20 A

Pin Wire

1.029 kJ

-55 °C (-67 °F)

Tin

300 A

318

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; UL

125 °C (257 °F)

Fast

0215020.MXG

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

2.6 kJ

-55 °C (-67 °F)

400 A

2600

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)

125 °C (257 °F)

Time Lag

SPFI020.T

Littelfuse

Electric Fuse

Inline/Holder

1 KV

20 A

End Cap

1.313 kJ

20 kA

4 m

1313

Bulk

0.406 in (10.31 mm)

0.406 x 2.5 in (10.31 x 63.5 mm)

2.5 in (63.5 mm)

CE, TUV, UL

0312020.VXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

1.029 kJ

-55 °C (-67 °F)

Tin

300 A

312

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)

CSA; UL

125 °C (257 °F)

Fast

0322020HXP

Littelfuse

Electric Fuse

20 A

End Cap

-55 °C (-67 °F)

Nickel

200 A

4 h

192

0.25 in (6.35 mm)

Supplemental

65 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE, UL

125 °C (257 °F)

Very Fast

162.6185.5206

Littelfuse

Electric Fuse

20 A

Tab/Blade

Matte Tin

1 kA

4 d 4 h

648

0.748 in (19 mm)

0.197 in (5 mm)

e3

32 V

3.4 mΩ

ATO

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

0.52 in (13.2 mm)

Fast

0362020.M

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

8AG

1 in (25.4 mm)

Normal

0324020.HX280P

Littelfuse

Electric Fuse

Through Hole Mount

280 V

125 V

20 A

Pin Wire

631 J

-55 °C (-67 °F)

Tin

350 A

4 h

Rated Breaking Capacity at 125 VDC: 10000 A

631

Bulk

0.275 in (6.99 mm)

Supplemental

e3

280 V

3AB

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; UL

125 °C (257 °F)

Fast

297020WXNV

Littelfuse

Electric Fuse

20 A

Tab/Blade

-40 °C (-40 °F)

Silver

1 kA

380

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

32 V

3.21 mΩ

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

0.346 in (8.8 mm)

UL

125 °C (257 °F)

AGA20H/301020

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

1AG

0.625 in (15.87 mm)

Normal

TLO020

Littelfuse

Electric Fuse

Inline/Holder

125 V

20 A

End Cap

10 kA

UL

Medium Time Delay

0891020H

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

420 J

-40 °C (-40 °F)

Silver

1 kA

Bulk

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

0.429 x 0.15 x 0.331 in (10.9 x 3.8 x 8.4 mm)

0.331 in (8.4 mm)

125 °C (257 °F)

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.