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

0325012.MXSPP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

12 A

Pin Wire

129 J

-55 °C (-67 °F)

400 A

5 s

Bulk

0.25 in (6.36 mm)

3AB

1.25 in (31.74 mm)

CE; CSA; KC; PSE; TUV; UL

125 °C (257 °F)

Slow

0253012.NAL

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 32 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

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

0253012.MRT3L

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin Over Copper

50 A

0253

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

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

0451012.

Littelfuse

Electric Fuse

12 A

-55 °C (-67 °F)

Tin/Lead

50 A

4 h

47.97

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

65 V

4.9 mΩ

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0454012.NR

Littelfuse

Electric Fuse

Surface Mount

72 V

75 V

12 A

Wraparound

260.46 J

-55 °C (-67 °F)

Silver

50 A

2 ms

Rated Breaking Capacity at 75 VDC: 100 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

0481012.HXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

571.2 J

-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

LA15QS12-2

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

12 A

End Cap

30 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

TOO012

Littelfuse

Electric Fuse

Inline/Holder

125 V

12 A

End Cap

10 kA

UL

Time Delay

315012P

Littelfuse

Electric Fuse

Through Hole Mount

32 V

12 A

Pin Wire

1.2 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

0481012.HXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

571.2 J

-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

32512MVXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

60 V

12 A

Pin Wire

129 J

-55 °C (-67 °F)

Matte Tin

400 A

Rated Breaking Capacity at 60 VDC: 500 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)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Time Lag

0251012.PR

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

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

0.11 in (2.8 mm)

e3

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

KLDR012

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

154.7 J

Nickel

200 kA

12 s

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

SPXV012.L

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

12 A

End Cap

798 J

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

0253012.NRL

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

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

0375012.MXBP

Littelfuse

Electric Fuse

12 A

Pin Wire

1.2 kJ

-55 °C (-67 °F)

10 kA

4 h

0.275 in (6.985 mm)

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

0322012.MXP

Littelfuse

Electric Fuse

Inline/Holder

65 V

12 A

End Cap

38 J

-55 °C (-67 °F)

200 A

1 s

60

Bulk

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)

CE; UL

125 °C (257 °F)

Very Fast

0253012.PRL

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

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

0481012.VXLM

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

571.2 J

-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

LGR12

Littelfuse

Electric Fuse

Inline/Holder

300 V

12 A

End Cap

10 kA

0.61 in (15.49 mm)

0.61 x 1.82 in (15.49 x 46.23 mm)

1.82 in (46.23 mm)

CSA; UL

Fast

JTD012

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.811 in (20.6 mm)

2.252 in (57.2 mm)

CSA; UL

Time Delay

0253012.MAT3

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

Ammo Pack

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

0KLK012.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

12 A

End Cap

Nickel

100 kA

Rated Breaking Capacity at 500 VDC: 50000 A

0.406 in (10.31 mm)

600 V

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

325012

Littelfuse

Electric Fuse

Through Hole Mount

250 V

12 A

Pin Wire

129 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

0481012.HXLP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

571.2 J

-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

FLNR12ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

12 A

End Cap

200 kA

0.563 in (14.3 mm)

Indicator

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

R271012

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

12 A

End Cap

45.5 J

-55 °C (-67 °F)

50 A

20 s

Rated Breaking Capacity at 32 VDC: 300 A, Pre Arcing Time: Open within 20 s at 200% Rated Current

Tape And Reel

0.08 in (2.032 mm)

Nano

0.225 in (5.715 mm)

CSA; UL

125 °C (257 °F)

Very Fast

215012

Littelfuse

Electric Fuse

Inline/Holder

250 V

12 A

End Cap

515 J

-55 °C (-67 °F)

Nickel

1.5 kA

Bulk; Tape And Reel

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; IEC; KTL; PSE; UL

125 °C (257 °F)

Time Lag

0314012.P

Littelfuse

Electric Fuse

12 A

End Cap

-55 °C (-67 °F)

Nickel

750 A

4 h

570

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, UL

125 °C (257 °F)

Fast

0253012.PAL

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 32 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

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

CCMR012

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

12 A

End Cap

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

R451012.L

Littelfuse

Electric Fuse

Surface Mount

65 V

65 V

12 A

Wraparound

47.97 J

-55 °C (-67 °F)

Tin/Lead

451

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

SPXV012.TXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

12 A

End Cap

798 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

LLSRK012

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 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

0251012.HAL

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Tin

50 A

10 s

Pre Arcing Time: Open within 10 s at 200% Rated Current

Ammo Pack

0.11 in (2.8 mm)

e3

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

FLSR12ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 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

0312012.MXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

12 A

End Cap

234.6 J

-55 °C (-67 °F)

Tin

300 A

10 s

Tape And Reel

0.25 in (6.35 mm)

e3

3AG

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

0251012.HRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Matte Tin

50 A

251

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.11 in (2.8 mm)

e3

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

LGD12

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

200 kA

LGD

Rated Breaking Capacity at 300 VDC: 20000 A

CSA; IEC; UL

Time Delay

0251012.NAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

12 A

Pin Wire

45.2 J

-55 °C (-67 °F)

Matte Tin

50 A

251

Rated Breaking Capacity at 32 VDC: 300 A

Ammo Pack

0.11 in (2.8 mm)

e3

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

481012

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

12 A

End Cap

481

Alarm

0215012.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

12 A

Wire

515.5 J

-55 °C (-67 °F)

Tin

1.5 kA

Bulk

0.228 in (5.8 mm)

e3

250 V

10 µs

0.197 x 0.787 in (5 x 20 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; CUL; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0FLM012T

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)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE; CSA; QPL; UL

Time Delay

KLKD012

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

12 A

End Cap

440 J

-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; VDE

125 °C (257 °F)

Fast

KLDR012HXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

154.7 J

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

KLDR012TXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

154.7 J

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

0JTD012.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.811 in (20.6 mm)

2.252 in (57.2 mm)

CSA; UL

Time Delay

0BLF012.T

Littelfuse

Electric Fuse

Inline/Holder

250 V

12 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

5AG

1.5 in (38.1 mm)

CE; CSA; UL

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.