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

KLSR020

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 V

20 A

End Cap

200 kA

KLSR

Rated Breaking Capacity at 250 VDC: 20000 A

0.811 in (20.6 mm)

5 in (127 mm)

CSA; UL

Fast

313020M

Littelfuse

Electric Fuse

20 A

Pin Wire

-55 °C (-67 °F)

300 A

4 h

9560

1.25 in (31.75 mm)

Supplemental

32 V

2.2 mΩ

3AG

1.25 in (31.75 mm)

UL

125 °C (257 °F)

Time Lag

0453020.MRSN

Littelfuse

Electric Fuse

Surface Mount

65 V

65 V

20 A

Wraparound

154 J

-55 °C (-67 °F)

Silver

100 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

20 s

Nano

0.106 in (2.69 mm)

CE; CUL; TUV; UL

125 °C (257 °F)

Very Fast

0285020MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

3.226 kJ

-55 °C (-67 °F)

Gold

400 A

10 ms

Bulk

0.205 in (5.2 mm)

e4

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)

PSE

125 °C (257 °F)

LLNRK020

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

312020P

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

End Cap

1.029 kJ

Nickel

312P

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; UL

Fast

L70S20

Littelfuse

Electric Fuse

Inline/Holder

700 V

650 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 650 VDC: 20000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

FLNR020

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

FLSR20ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

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

20E-1C-38.0S

Littelfuse

Electric Fuse

Inline/Holder

38 KV

20 A

End Cap

20 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 30.625 in (76.2 x 777.88 mm)

30.625 in (777.88 mm)

Medium

0HEV020.ZXPCBL

Littelfuse

Electric Fuse

Through Hole Mount

450 V

20 A

Pin Wire

268 J

-40 °C (-40 °F)

10 kA

50 ms

0.406 in (10.3 mm)

450 V

1.53 in (38.86 mm)

CSA; UL

125 °C (257 °F)

315020P

Littelfuse

Electric Fuse

Through Hole Mount

32 V

20 A

Pin Wire

9.56 kJ

Matte Tin

300 A

0.275 in (6.99 mm)

e3

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CE; CSA; PSE; UL

Slow

0481020.VXP

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

0325020.VXP

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

5NLE-20EL

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

20 A

End Cap

80 kA

5NLE-20E

3 in (76.2 mm)

3 x 17.874 in (76.2 x 454 mm)

17.874 in (454 mm)

20E-1C-8.25L

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

20 A

End Cap

80 kA

20E-1C-8.25

3 in (76.2 mm)

3 x 15.874 in (76.2 x 403.2 mm)

15.874 in (403.2 mm)

TLS-LS020

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

End Cap

Silver

Rated Breaking Capacity at 170 VDC: 100000

0.562 in (14.27 mm)

e4

0.562 x 0.944 in (14.27 x 23.98 mm)

0.944 in (23.98 mm)

UL

LDN20E

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

20 A

End Cap

80 kA

LDN

3 in (76.2 mm)

3 x 18.875 in (76.2 x 479.43 mm)

18.875 in (479.43 mm)

Medium

0293020.H

Littelfuse

Electric Fuse

20 A

-40 °C (-40 °F)

Silver

0.906 in (23 mm)

0.646 in (16.4 mm)

e4

32 V

0.906 x 0.646 x 1.205 in (23 x 16.4 x 30.6 mm)

1.205 in (30.6 mm)

125 °C (257 °F)

L15S20

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

0297020.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

442 J

-40 °C (-40 °F)

Silver

1 kA

30 ms

380

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

32 V

Mini

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)

0293020.U

Littelfuse

Electric Fuse

20 A

-40 °C (-40 °F)

Silver

0.906 in (23 mm)

0.646 in (16.4 mm)

e4

32 V

0.906 x 0.646 x 1.205 in (23 x 16.4 x 30.6 mm)

1.205 in (30.6 mm)

125 °C (257 °F)

CCMR020

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

20 A

End Cap

918 J

200 kA

Rated Breaking Capacity at 300 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)

CE; CSA; UL

Time Delay

20E1C38.0

Littelfuse

Electric Fuse

Inline/Holder

38 KV

20 A

End Cap

20 kA

5 m

3 in (76.2 mm)

Striker

3 x 30.625 in (76.2 x 777.88 mm)

30.875 in (784.23 mm)

Medium

JLLS020.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.563 in (14.3 mm)

600 V

1.5 in (38.1 mm)

CE; CSA; UL

Fast

0275020.MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

20 A

Wire

203 J

-60 °C (-76 °F)

Tin

100 A

10 s

Rated Breaking Capacity at 32 VDC: 300 A

203

Tape And Reel

0.133 in (3.38 mm)

e3

32 V

Pico

0.133 x 0.31 in (3.38 x 7.87 mm)

0.31 in (7.87 mm)

CUL; UL

125 °C (257 °F)

Very Fast

0453020.NRSN

Littelfuse

Electric Fuse

Surface Mount

65 V

65 V

20 A

Wraparound

154 J

-55 °C (-67 °F)

Silver

100 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

20 s

Nano

0.106 in (2.69 mm)

CE; CUL; TUV; UL

125 °C (257 °F)

Very Fast

0495020UXA

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

1.7 kJ

-40 °C (-40 °F)

1 kA

40 ms

0.555 in (14.1 mm)

0.472 in (12 mm)

32 V

1.063 in (27 mm)

UL

125 °C (257 °F)

Time Delay

325020MXDP

Littelfuse

Electric Fuse

20 A

Pin Wire

Matte Tin

1.5 kA

4 h

575

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, PSE, UL

Time Lag

0MIN020.HXGLO

Littelfuse

Electric Fuse

Inline/Holder

12 V

20 A

Tab/Blade

-40 °C (-40 °F)

1 kA

30 ms

Bulk

0.43 in (10.92 mm)

0.15 in (3.81 mm)

Mini

0.345 in (8.76 mm)

125 °C (257 °F)

0287020.U

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

520 J

-40 °C (-40 °F)

Tin

1 kA

80 ms

0.752 in (19.1 mm)

0.201 in (5.1 mm)

e3

0.752 x 0.201 x 0.484 in (19.1 x 5.1 x 12.3 mm)

0.74 in (18.8 mm)

CSA; UL

125 °C (257 °F)

0481020.VXMP

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

BLN020

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

250 V

5AG

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; PSE; UL

Fast

KLKD020R

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

20 A

End Cap

2.12 kJ

-55 °C (-67 °F)

100 kA

4 m

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

KLDR020.H

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

KLDR

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)

CSA; UL

Time Delay

325020

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

575 J

Tin/Lead

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

Slow

0481020.VXLMP

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

324020

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

20 A

Pin Wire

631 J

-55 °C (-67 °F)

Tin/Lead

1 kA

30 s

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

631

0.275 in (6.99 mm)

e0

250 V

3AB

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Fast

0283020.H

Littelfuse

Electric Fuse

20 A

-40 °C (-40 °F)

0.898 in (22.8 mm)

0.638 in (16.2 mm)

32 V

0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm)

0.846 in (21.5 mm)

125 °C (257 °F)

TLS020LB

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

169.6885.5202

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

297020LXN

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)

313020

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

9.56 kJ

-55 °C (-67 °F)

Tin/Lead

300 A

4 h

9560

0.25 in (6.35 mm)

Supplemental

e0

32 V

2.2 mΩ

3AG

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)

Slow

NLKP020

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

10 kA

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

142.6185.5206

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

KLH20

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

20 A

End Cap

200 kA

KLH

Rated Breaking Capacity at 450 VDC: 20000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

JLLN020.T

Littelfuse

Electric Fuse

Inline/Holder

300 V

160 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 160 VDC: 50000 A

0.406 in (10.3 mm)

300 V

0.874 in (22.2 mm)

CE; CSA; CUL; UL

Fast

326020P

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

575 J

Nickel

400 A

326

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; PSE; UL

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.