400 A Fuses 261

Reset All
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

157.5701.6401

Littelfuse

Electric Fuse

Inline/Holder

48 V

400 A

Tab/Blade

-40 °C (-40 °F)

2.4 kA

200 ms

Bulk

1.26 in (32 mm)

0.866 in (22 mm)

48 V

1.26 x 0.866 x 0.413 in (32 x 22 x 10.5 mm)

0.413 in (10.5 mm)

CUL; UL

125 °C (257 °F)

LCU400ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

400 A

End Cap

80 kA

LCU

Hermitically Sealed Part Number

6.38 in (162.05 mm)

6.38 x 17.875 in (162.05 x 454.03 mm)

17.875 in (454.03 mm)

Medium

L60S400.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

400 A

Tab/Blade

-55 °C (-67 °F)

200 kA

Box

1.579 in (40.1 mm)

2.906 in (73.8 mm)

CSA; UL

125 °C (257 °F)

Very Fast

L50S400

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 450 VDC: 20000 A

1.5 in (38.1 mm)

1.5 x 2.094 in (38.1 x 53.2 mm)

2.094 in (53.2 mm)

CE; CSA; UL

Very Fast

0898400.U-NH

Littelfuse

Electric Fuse

Inline/Holder

70 V

400 A

Tab/Blade

872 kJ

-40 °C (-40 °F)

2.5 kA

100 ms

1.15 in (29.2 mm)

0.748 in (19 mm)

Mega

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

400E-3C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

400 A

End Cap

80 kA

Hermitically Sealed Part Number

9.75 in (247.65 mm)

9.75 x 15.875 in (247.65 x 403.23 mm)

15.875 in (403.23 mm)

Medium

IDSR400

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

2.5 x 11.626 in (63.5 x 295.3 mm)

11.626 in (295.3 mm)

CSA; UL

Time Delay

400E-2CL-5.5

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

400 A

Tab/Blade

80 kA

7.94 in (201.68 mm)

7.94 x 16.13 in (201.68 x 409.7 mm)

16.13 in (409.7 mm)

Medium

FLNR400ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

Indicator

2.094 x 8.626 in (53.2 x 219.1 mm)

8.626 in (219.1 mm)

CSA; QPL; UL

Time Delay

SPNH0400.X3LDEMS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Tab/Blade

85 kJ

50 kA

Bulk

5.165 in (131.2 mm)

2.874 in (73 mm)

NH

2.874 in (73 mm)

UL

LA070URD31TTI0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

400 A

End Cap

19 J

200 kA

2 in (50.8 mm)

2 in (50.8 mm)

Indicator

2 x 2 x 1.929 in (50.8 x 50.8 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

JTD400

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

400 A

Tab/Blade

1.055 MJ

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2 in (50.8 mm)

3.374 in (85.7 mm)

CSA; UL

Time Delay

LA15QS400-4IL

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

400 A

Tab/Blade

40 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.13 in (28.7 mm)

1.13 x 1.161 in (28.7 x 29.5 mm)

1.161 in (29.5 mm)

UL

Very Fast

0298400.UXP-NH

Littelfuse

Electric Fuse

Inline/Holder

32 V

400 A

Tab/Blade

844.4 kJ

-40 °C (-40 °F)

Tin

2 kA

1.15 in (29.2 mm)

0.75 in (19.05 mm)

e3

32 V

Mega

0.389 in (9.89 mm)

125 °C (257 °F)

Time Delay

NH2G400

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

400 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.921 in (74.2 mm)

1.969 in (50 mm)

Indicator

2.921 x 1.969 x 2.835 in (74.2 x 50 x 72 mm)

2.835 in (72 mm)

VDE

PSX1XLFL0400X

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Threaded

116.271 kJ

-55 °C (-67 °F)

250 kA

Bulk

4.988 in (126.7 mm)

2.028 in (51.5 mm)

Indicator

2.028 in (51.5 mm)

CUL; UL

125 °C (257 °F)

Fast

LA070URD32KI0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

400 A

Tab/Blade

15 J

200 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 1.874 in (60 x 60 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

PSX1XLUB0400X

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Tab/Blade

116.271 kJ

-55 °C (-67 °F)

250 kA

Bulk

4.988 in (126.7 mm)

2.028 in (51.5 mm)

Indicator

2.028 in (51.5 mm)

CUL; UL

125 °C (257 °F)

Fast

SPNH400.X3L

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Tab/Blade

85 kJ

50 kA

Bulk

5.165 in (131.2 mm)

2.874 in (73 mm)

NH

2.874 in (73 mm)

UL

07945825265

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

14.77 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.028 in (51.5 mm)

1.937 in (49.2 mm)

Indicator

2.264 in (57.5 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825257

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

16.209 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.878 in (47.7 mm)

1.693 in (43 mm)

Indicator

1.929 in (49 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825272

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

11.104 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825221

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

11.104 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825326

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

400 A

Tab/Blade

19.797 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

3.13 in (79.5 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825206

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

16.209 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.878 in (47.7 mm)

1.693 in (43 mm)

Indicator

1.929 in (49 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR031US0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

14.77 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.028 in (51.5 mm)

1.937 in (49.2 mm)

Indicator

2.264 in (57.5 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR030UL0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

16.209 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

1.878 in (47.7 mm)

1.693 in (43 mm)

Indicator

1.929 in (49 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032US0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

11.104 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

07945825319

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

400 A

Tab/Blade

27.112 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

07945828535

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

400 A

Tab/Blade

37.103 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.823 in (71.7 mm)

1.693 in (43 mm)

Indicator

1.929 in (49 mm)

CUL; UL

125 °C (257 °F)

Fast

L17T400.V

Littelfuse

Electric Fuse

Inline/Holder

170 V

400 A

Tab/Blade

100 kA

Bulk

1.5 in (38.1 mm)

1.252 in (31.8 mm)

CSA; UL

PSR073UL0400

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

400 A

Tab/Blade

19.797 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

3.13 in (79.5 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR031UL0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

14.77 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.028 in (51.5 mm)

1.937 in (49.2 mm)

Indicator

2.264 in (57.5 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032UL0400

Littelfuse

Electric Fuse

Inline/Holder

700 V

600 V

400 A

Tab/Blade

11.104 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 600 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071UL0400

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

400 A

Tab/Blade

43.211 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

2.264 in (57.5 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072UL0400

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

400 A

Tab/Blade

27.112 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

Fast

FLNR400.XXID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

2 in (50.8 mm)

Indicator

8.626 in (219.1 mm)

CSA; UL

Time Delay

153.7011.64021

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Tab/Blade

964 kJ

-40 °C (-40 °F)

1.5 kA

100 ms

Bulk

1.142 in (29 mm)

0.642 in (16.3 mm)

0.394 in (10 mm)

CUL; UL

125 °C (257 °F)

FLSR400.XXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

2.543 in (64.6 mm)

Indicator

11.626 in (295.3 mm)

CSA; UL

Time Delay

FLNR400.X

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

2 in (50.8 mm)

8.626 in (219.1 mm)

CSA; UL

Time Delay

153.5395.64021

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

400 A

Tab/Blade

964 kJ

-40 °C (-40 °F)

1.5 kA

100 ms

Bulk

1.142 in (29 mm)

0.642 in (16.3 mm)

0.394 in (10 mm)

CUL; UL

125 °C (257 °F)

EV1K400

Littelfuse

Electric Fuse

Inline/Holder

1 KV

400 A

Tab/Blade

-40 °C (-40 °F)

30 kA

Bulk

2 in (50.8 mm)

2.844 in (72.24 mm)

125 °C (257 °F)

EV1K400.ZXBD

Littelfuse

Electric Fuse

Inline/Holder

1 KV

400 A

Tab/Blade

-40 °C (-40 °F)

30 kA

Bulk

2 in (50.8 mm)

2.844 in (72.24 mm)

125 °C (257 °F)

L15S400.T

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

400 A

Tab/Blade

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 100 VDC: 20000 A

Box

1 in (25.4 mm)

1.157 in (29.4 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0NLN400.X

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

400 A

Tab/Blade

1.51 MJ

200 kA

Rated Breaking Capacity at 250 VDC: 20000 A

2.094 in (53.2 mm)

Indicator

8.626 in (219.1 mm)

CE; CSA; UL

LLSRK400.TXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

2.594 in (65.9 mm)

Indicator

11.626 in (295.3 mm)

CE; CSA; UL; QPL

Time Delay

KLNR0400

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

2.094 in (53.2 mm)

8.626 in (219.1 mm)

CE; CSA; UL

Fast

0KLC400.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

400 A

Tab/Blade

-55 °C (-67 °F)

200 kA

Box

2 in (50.8 mm)

2.843 in (72.2 mm)

CSA; UL

125 °C (257 °F)

Very 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.