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

0481020H

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

570 J

-55 °C (-67 °F)

Tin

300 A

481

Rated Breaking Capacity at 125 VDC: 200 A

Bulk

e3

Alarm

CSA; UL

90 °C (194 °F)

KLDR020.T

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

NLN020

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

20 A

End Cap

50 kA

Rated Breaking Capacity at 250 VDC; 20000

0.563 in (14.3 mm)

K5

250 V

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

0481020.

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

570 J

-55 °C (-67 °F)

Tin

300 A

481

Rated Breaking Capacity at 125 VDC: 200 A, Joule Integral Nom at 125 VDC: 570

Box

e3

Alarm

CSA; UL

125 °C (257 °F)

325020P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

575 J

Matte Tin

400 A

325P

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

Slow

275020

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

20 A

Pin Wire

-55 °C (-67 °F)

Tin

50 A

275

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

PAL020BP

Littelfuse

Electric Fuse

Inline/Holder

20 A

Tab/Blade

Blister

NH0G20

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

20 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.1 in (53.34 mm)

1.181 in (30 mm)

Indicator

2.1 x 1.181 x 2.76 in (53.34 x 30 x 70.11 mm)

2.76 in (70.11 mm)

VDE

LA70QS20-14F

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

0895020Z

Littelfuse

Electric Fuse

Inline/Holder

58 V

20 A

Tab/Blade

-40 °C (-40 °F)

1 kA

Bulk

0.571 in (14.5 mm)

0.472 in (12 mm)

0.571 x 0.472 x 0.63 in (14.5 x 12 x 16 mm)

0.63 in (16 mm)

125 °C (257 °F)

0324020.VX280P

Littelfuse

Electric Fuse

Through Hole Mount

280 V

20 A

Pin Wire

631 J

-55 °C (-67 °F)

Tin

350 A

324

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

SPXV020.LXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

20 A

End Cap

701 J

Silver

30 kA

4 m

Bulk

0.406 in (10.31 mm)

e4

3.333 in (84.65 mm)

CE; CUL; IEC; UL

Fast

0SFE020.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

0.25 in (6.35 mm)

1.25 in (31.75 mm)

0495020.ZXA

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

L70S020

Littelfuse

Electric Fuse

Inline/Holder

700 V

650 V

20 A

End Cap

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 650 VDC: 20000 A

0.811 in (20.6 mm)

700 V

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CE; CSA; UL

125 °C (257 °F)

Very Fast

KLKD20

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

20 A

End Cap

462.056 J

-55 °C (-67 °F)

100 kA

826 µs

Rated Breaking Capacity at 600 VDC: 50000 A

Bulk

0.406 in (10.31 mm)

6.144 ms

0.394 x 1.496 in (10 x 38 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA, IEC, UL, VDE

125 °C (257 °F)

Fast

0325020.MX52P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

575 J

-55 °C (-67 °F)

Tin

4 h

575

0.275 in (6.985 mm)

e3

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

1672200100

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

480 J

-40 °C (-40 °F)

1 kA

Bulk

0.469 in (11.9 mm)

0.15 in (3.8 mm)

20 ms

0.335 in (8.5 mm)

85 °C (185 °F)

Very Fast

20E-1CL-8.25

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

20 A

Tab/Blade

80 kA

4.75 in (120.65 mm)

4.75 x 16.131 in (120.65 x 409.72 mm)

16.131 in (409.72 mm)

Medium

0295020.U

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)

0487020.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

420 V

420 V

20 A

Pin Wire

390 J

-60 °C (-76 °F)

Matte Tin

200 A

30 ms

Rated Breaking Capacity at 420 VDC: 300 A

Bulk

0.217 in (5.5 mm)

e3

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CUL; TUV; UL

125 °C (257 °F)

Fast

314020P

Littelfuse

Electric Fuse

Inline/Holder

250 V

20 A

End Cap

631 J

Nickel

1 kA

30 s

Pre Arcing Time: Open within 30 s at 200% Rated Current

0.25 in (6.35 mm)

250 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; METI; PSE; UL

Fast

0314020.HX280P

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

KLKD020.

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

20 A

End Cap

100 kA

Rated Breaking Capacity at 600 VDC: 10000 A

0.406 in (10.31 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

7945816071

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

20 A

End Cap

-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)

CSA; UL

125 °C (257 °F)

Time Delay

0481020VXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

20 A

End Cap

570 J

-55 °C (-67 °F)

Tin

300 A

481

Rated Breaking Capacity at 125 VDC: 200 A

Bulk

e3

Alarm

CSA; UL

90 °C (194 °F)

0TLS020.TXLB

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

Tab/Blade

100 kA

Bulk

0.563 in (14.3 mm)

170 V

0.563 x 0.877 in (14.3 x 22.27 mm)

0.877 in (22.28 mm)

CUL; IEC; TUV; UL

KLKD020.HXR

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)

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

314020.MX280P

Littelfuse

Electric Fuse

Inline/Holder

280 V

20 A

End Cap

50 A

314P

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; METI; PSE; UL

Fast

KLKR020

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

Tab/Blade

900 J

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

Fast

AGC20

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

20 A

End Cap

FLSR020

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

200 kA

FLSR

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

5 in (127 mm)

CSA; UL

Time Delay

TLS-L020

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

Tab/Blade

Silver

Rated Breaking Capacity at 170 VDC: 100000

0.563 in (14.3 mm)

e4

0.563 x 1.74 in (14.3 x 44.196 mm)

1.74 in (44.196 mm)

UL

TLS020V

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

0481020.HP

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

0.701 in (17.8 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

0275020.MRL

Littelfuse

Electric Fuse

20 A

-55 °C (-67 °F)

Tin

300 A

4 h

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)

UL

125 °C (257 °F)

Very Fast

322020

Littelfuse

Electric Fuse

Inline/Holder

65 V

65 V

20 A

End Cap

1 s

Pre Arcing Time: Open within 1 s at 250% Rated Current

0.25 in (6.35 mm)

65 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

Very Fast

0501020.WRT

Littelfuse

Electric Fuse

Surface Mount

32 V

20 A

Wraparound

54.76 J

-55 °C (-67 °F)

150 A

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

0.126 x 0.064 x 0.02 in (3.2 x 1.63 x 0.5 mm)

0.02 in (0.5 mm)

CSA; UL

150 °C (302 °F)

Fast

NH00M20

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

20 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

0481020.VMP

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

SPF0020R

Littelfuse

Electric Fuse

Through Hole Mount

1 KV

20 A

Pin Wire

20 kA

SPF

1.53 in (38.86 mm)

1.53 x 0.5 in (38.86 x 12.7 mm)

0.5 in (12.7 mm)

UL

2CO020

Littelfuse

Electric Fuse

Inline/Holder

600 V

250 V

20 A

Tab/Blade

200 kA

2CO

Rated Breaking Capacity at 250 VDC: 80000 A

0.827 in (21 mm)

0.827 x 2.205 in (21 x 56 mm)

2.205 in (56 mm)

CSA

TLS020

Littelfuse

Electric Fuse

Inline/Holder

170 V

20 A

End Cap

Silver

Rated Breaking Capacity at 170 VDC: 100000

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)

UL

L60S020

Littelfuse

Electric Fuse

Inline/Holder

600 V

20 A

End Cap

-55 °C (-67 °F)

200 kA

0.811 in (20.6 mm)

5 in (127 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0324020.MX24P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

20 A

Pin Wire

631 J

-55 °C (-67 °F)

Tin

1 kA

631

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, PSE, UL

125 °C (257 °F)

Fast

MIN20

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

380 J

-40 °C (-40 °F)

1 kA

30 ms

Box

0.429 in (10.9 mm)

0.15 in (3.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

0257020.L

Littelfuse

Electric Fuse

Inline/Holder

32 V

20 A

Tab/Blade

520 J

-40 °C (-40 °F)

Tin

1 kA

100 ms

Bulk

0.752 in (19.1 mm)

0.201 in (5.1 mm)

e3

0.74 in (18.8 mm)

UL

105 °C (221 °F)

0SPF020.HXS

Littelfuse

Electric Fuse

Inline/Holder

1 KV

20 A

End Cap

1.313 kJ

Silver

20 kA

4 m

Bulk

0.406 in (10.31 mm)

e4

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

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.