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.MX52LP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

20 A

Pin Wire

-55 °C (-67 °F)

4 h

575

0.275 in (6.985 mm)

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Time Lag

0481020.HXP

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

SPXV020.T

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)

GPV

1.5 KV

0.394 x 3.346 in (10 x 85 mm)

0.409 x 3.358 in (10.4 x 85.3 mm)

3.333 in (84.65 mm)

CUL; TUV; UL

Fast

JTD020ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.811 in (20.6 mm)

Indicator

0.811 x 2.252 in (20.6 x 57.2 mm)

2.252 in (57.2 mm)

CSA; UL

Time Delay

20E-1C-5.5S

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

20 A

End Cap

80 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 15.875 in (76.2 x 403.23 mm)

15.875 in (403.23 mm)

Medium

0327020.UXS

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

400 J

-40 °C (-40 °F)

Silver

1 kA

20 ms

Bulk

0.358 in (9.1 mm)

0.15 in (3.8 mm)

e4

32 V

Micro

0.311 in (7.9 mm)

125 °C (257 °F)

312020

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Tin/Lead

0.25 in (6.35 mm)

e0

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

Fast

KLNR020

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

20 A

End Cap

200 kA

KLNR

Rated Breaking Capacity at 125 VDC: 20000 A

0.563 in (14.3 mm)

2 in (50.8 mm)

CSA; UL

Fast

LLSRK020

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

Time Delay

7945894974

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

20 A

Tab/Blade

-55 °C (-67 °F)

10 kA

Rated Breaking Capacity at 300 VDC: 10000 A

Bulk

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE, UL

125 °C (257 °F)

Time Delay

TLN20

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

End Cap

Rated Breaking Capacity at 170 VDC: 100000 A

0.563 in (14.3 mm)

0.563 x 1.843 in (14.3 x 46.8 mm)

1.843 in (46.8 mm)

UL

Fast

0314020.P

Littelfuse

Electric Fuse

20 A

End Cap

-55 °C (-67 °F)

Nickel

1 kA

4 h

631

0.25 in (6.35 mm)

Supplemental

250 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE, CSA, PSE

125 °C (257 °F)

Fast

KLA20

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

20 A

End Cap

100 kA

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

0481020.HXLM

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

1.024 kJ

-55 °C (-67 °F)

300 A

5 m

0.839 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

0481020.VXLP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

1.024 kJ

-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

0895020.Z

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

400 J

-40 °C (-40 °F)

1 kA

40 ms

Bulk

0.571 in (14.5 mm)

0.472 in (12 mm)

58 V

0.63 in (16 mm)

ISO; SAE

125 °C (257 °F)

164.6185.5206

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

648 J

Tin

1 kA

Rated Breaking Capacity at 32 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

0506020.MXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

20 A

End Cap

105 J

-55 °C (-67 °F)

Matte Tin

10 kA

2 m

105

Bulk

0.25 in (6.35 mm)

e3

600 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CUL; UL

125 °C (257 °F)

Fast

0324020.HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

20 A

Pin Wire

631 J

-55 °C (-67 °F)

Matte Tin

1 kA

30 s

Rated Breaking Capacity at 125 VDC: 10000 A, Pre Arcing Time: Open within 30 s at 200% Rated Current

631

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

318020

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

20 A

Pin Wire

Tin Lead

318

0.275 in (6.99 mm)

e0

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CSA; UL

Fast

0314020.MX280P

Littelfuse

Electric Fuse

Inline/Holder

280 V

125 V

20 A

End Cap

631 J

-55 °C (-67 °F)

Nickel

350 A

4 h

Rated Breaking Capacity at 125 VDC: 10000 A

631

Bulk

0.25 in (6.35 mm)

Supplemental

280 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)

Fast

L50S020

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 450 VDC: 20000 A

0.563 in (14.3 mm)

2 in (50.8 mm)

CE; CSA; UL

Very Fast

0215020.MXGP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

2.6 kJ

-55 °C (-67 °F)

400 A

10 ms

Pre Arcing Time: Open within 0.01 s at 1000% Rated Current

Bulk

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CE; CSA; CUL; PSE; SEMKO; SEV; TUV; UL

125 °C (257 °F)

Time Lag

164.6185.5202

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

648 J

Matte Tin

1 kA

Rated Breaking Capacity at 32 VDC: 1000 A

648

Bulk

0.748 in (19 mm)

0.197 in (5 mm)

ATO

e3

32 V

FKSATO

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

0.52 in (13.2 mm)

UL

CY22X58M20

Littelfuse

Electric Fuse

Inline/Holder

690 V

20 A

End Cap

80 kA

0.866 in (22 mm)

500 V

0.866 x 2.283 in (22 x 58 mm)

0.866 x 2.283 in (22 x 58 mm)

2.283 in (58 mm)

IEC

Time Lag

LLSRK020ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

Indicator

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

Time Delay

0481020.VXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

1.024 kJ

-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

0318020.VXP

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)

CSA; UL

125 °C (257 °F)

Fast

SPFI020

Littelfuse

Electric Fuse

Inline/Holder

1 KV

20 A

Ferrule

1.174 kJ

Nickel

20 kA

4 m

0.406 in (10.31 mm)

Midget

2.5 in (63.5 mm)

CE; UL

PAL020

Littelfuse

Electric Fuse

Inline/Holder

20 A

Tab/Blade

Bulk

CCMR020.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

20 A

End Cap

200 kA

CCMR

Rated Breaking Capacity at 500 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

0313020.HXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

9.56 kJ

-55 °C (-67 °F)

Matte Tin

300 A

4 h

9560

Bulk

0.25 in (6.35 mm)

Supplemental

e3

250 V

3AG

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

LA70QS20-14FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

20 A

End Cap

160 mJ

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

0.551 in (14 mm)

0.551 x 2.008 in (14 x 51 mm)

2.008 in (51 mm)

CSA; UL

Very Fast

32620MVXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

60 V

20 A

End Cap

575 J

-55 °C (-67 °F)

Matte Tin

400 A

Rated Breaking Capacity at 60 VDC: 500 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; KTL; PSE; UL

125 °C (257 °F)

Time Lag

SPF0020

Littelfuse

Electric Fuse

Inline/Holder

1 KV

20 A

End Cap

20 kA

0.406 in (10.3 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

UL

LA15QS20-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

20 A

End Cap

72 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

0215020.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

20 A

Pin Wire

2.6 kJ

-55 °C (-67 °F)

Tin

400 A

10 ms

Pre Arcing Time: Open within 10 ms at 1000% Rated Current

2600

Bulk

0.228 in (5.8 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)

0.886 in (22.5 mm)

IEC; PSE; UL

125 °C (257 °F)

Time Lag

15NLE20E

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

20 A

End Cap

60 kA

5 m

3 in (76.2 mm)

Striker

3 x 23.875 in (76.2 x 606.43 mm)

23.875 in (606.43 mm)

Medium

0309621M

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

1.25 in (31.75 mm)

Normal

0309619M

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

5NLE20E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

20 A

End Cap

80 kA

5 m

3 in (76.2 mm)

Striker

3 x 17.875 in (76.2 x 454.03 mm)

17.875 in (454.03 mm)

Medium

KLDR020

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

123.8 J

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

0318020.MXBP

Littelfuse

Electric Fuse

Through Hole Mount

32 V

20 A

Pin Wire

1.029 kJ

-55 °C (-67 °F)

Tin

300 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)

CSA; UL

125 °C (257 °F)

Fast

AGW20CABP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

0.25 in (6.35 mm)

32 V

7AG

0.875 in (22.225 mm)

RLN020

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

10 kA

0.563 in (14.3 mm)

2 in (50.8 mm)

CE; CSA; UL

Fast

0899020.Z

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

1.3 kJ

-40 °C (-40 °F)

1 kA

40 ms

Bulk

0.638 in (16.2 mm)

0.256 in (6.5 mm)

0.394 in (10 mm)

125 °C (257 °F)

5NLE-20ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

20 A

End Cap

80 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 17.875 in (76.2 x 454.03 mm)

17.875 in (454.03 mm)

Medium

0312020.P

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

1.029 kJ

-55 °C (-67 °F)

Tin

300 A

312

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

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.