1.2 KV Fuses 46

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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

PSR071FL0500Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

500 A

Threaded

75.315 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071UL0550Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

550 A

Tab/Blade

87.328 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

LA120URD71TTI0550

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

550 A

End Cap

84 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD72TTI0800

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

800 A

End Cap

215 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD73LI0800

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

800 A

Tab/Blade

190 J

100 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 2.854 in (74.5 x 74.5 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

PSR072FS0800Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

800 A

Threaded

230.695 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072FL0800Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

800 A

Threaded

230.695 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071UL0500Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

500 A

Tab/Blade

75.315 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072FS0700Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

700 A

Threaded

228.761 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072FL0700Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

700 A

Threaded

228.761 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071FL0550Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

550 A

Threaded

87.328 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071FS0550Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

550 A

Threaded

87.328 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072UL0800X

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

800 A

Tab/Blade

230.695 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072UL0700X

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

700 A

Tab/Blade

228.761 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA120URD72TTI0700

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

700 A

End Cap

145 J

100 kA

2.362 in (60 mm)

2.362 in (60 mm)

Indicator

2.362 x 2.362 x 2.854 in (60 x 60 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD70LI0350

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

350 A

Tab/Blade

28 J

100 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 2.854 in (40 x 40 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120X1/2-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

500 mA

End Cap

1.9 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Fast

LA120X15-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

15 A

End Cap

2.1 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120URD71LLI0550

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

550 A

Tab/Blade

84 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very 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

PSR071FS0500Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

500 A

Threaded

75.315 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072DL0700X

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

700 A

Tab/Blade

228.761 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071DL0500Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

500 A

Tab/Blade

75.315 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR070DL0400Z

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

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071DL0550Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

550 A

Tab/Blade

87.328 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.028 in (51.5 mm)

Indicator

3.402 in (86.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR072DL0800X

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

800 A

Tab/Blade

230.695 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.882 in (73.2 mm)

2.362 in (60 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR070UL0400

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

LA120URD72LI0630

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

630 A

Tab/Blade

105 J

100 kA

LA

Indicator

UL

Very Fast

PSR070UL0400Z

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

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA120X1-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

1 A

End Cap

7.5 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X2-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

2 A

End Cap

30 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X10-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

10 A

End Cap

970 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X30-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

30 A

End Cap

8.3 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120URD71LLI0500

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

500 A

Tab/Blade

68 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71TTI0630

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

630 A

End Cap

125 J

100 kA

2.008 in (51 mm)

2.008 in (51 mm)

Indicator

2.008 x 2.008 x 2.854 in (51 x 51 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120URD71TTI0500

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

500 A

End Cap

68 J

100 kA

LA

Indicator

UL

Very Fast

LA120URD70TTI0350

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

350 A

End Cap

28 J

100 kA

1.575 in (40 mm)

1.575 in (40 mm)

Indicator

1.575 x 1.575 x 2.854 in (40 x 40 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA120X4-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

4 A

End Cap

120 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

PSR070FS0400Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

400 A

Threaded

37.103 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA120X5-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

5 A

End Cap

190 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120XA1/2-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

500 mA

End Cap

1.9 J

100 kA

LA120X

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X25-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

25 A

End Cap

5.7 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X6-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

6 A

End Cap

280 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

LA120X3-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

3 A

End Cap

69 J

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

Very Fast

PSR070FL0400Z

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

900 V

400 A

Threaded

37.103 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 900 VDC: 150000 A

Bulk

2.913 in (74 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CUL; UL

125 °C (257 °F)

Fast

LA120X20-1

Littelfuse

Electric Fuse

Inline/Holder

1.2 KV

1 KV

20 A

End Cap

3.7 kJ

100 kA

Rated Breaking Capacity at 1000 VDC: 100000 A

0.811 in (20.6 mm)

1.2 KV

0.811 x 4.606 in (20.6 x 117 mm)

4.606 in (117 mm)

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.