12 A Fuses 495

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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

0318012MX

Littelfuse

Electric Fuse

Through Hole Mount

32 V

12 A

Pin Wire

234.6 J

-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

0373012.MXP

Littelfuse

Electric Fuse

12 A

End Cap

1.2 kJ

-55 °C (-67 °F)

10 kA

4 h

0.25 in (6.35 mm)

125 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE, CSA, UL

125 °C (257 °F)

Time Lag

324012P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

12 A

Pin Wire

570 J

Matte Tin

750 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

312012

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

12 A

End Cap

0.25 in (6.35 mm)

32 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

Fast

7945807768

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

12 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

0253012.PRT3

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 10000 ms at 200% Rated Current

Tape And Reel

0.103 in (2.61 mm)

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Very Fast

FLQ012R

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

12 A

End Cap

10 kA

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

0325012.HXDP

Littelfuse

Electric Fuse

12 A

Pin Wire

-55 °C (-67 °F)

Tin

100 A

4 h

129

1.288 in (32.72 mm)

Supplemental

e3

250 V

3AB

1.288 x 1.288 in (32.72 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; UL

125 °C (257 °F)

Time Lag

593012

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

Nickel

593

KLKD12

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

12 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)

CE; CSA; UL

Fast

0324012.MX24P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

12 A

Pin Wire

570 J

-55 °C (-67 °F)

Tin

750 A

570

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

125 °C (257 °F)

Fast

0253012.PXT3

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 10000 ms at 200% Rated Current

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; UL

125 °C (257 °F)

Very Fast

FLM012

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

12 A

End Cap

10 kA

12 s

Pre Arcing Time: Open within 12 s at 200% Rated Current

Bulk

0.406 in (10.31 mm)

250 V

0.394 x 1.496 in (10 x 38 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; QPL; UL

Time Delay

0476012.MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

12 A

Wraparound

20.635 J

-55 °C (-67 °F)

Tin

100 A

2 m

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 120 s at 200% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e3

Nano

0.106 in (2.69 mm)

CUL; UL

125 °C (257 °F)

Fast

0375012.HXP

Littelfuse

Electric Fuse

12 A

Pin Wire

1.2 kJ

-55 °C (-67 °F)

Tin

10 kA

4 h

0.275 in (6.985 mm)

e3

125 V

3AG

0.275 x 1.275 in (6.985 x 32.39 mm)

1.275 in (32.39 mm)

CE, CSA, UL

125 °C (257 °F)

Time Lag

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.