Fuses

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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

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

PSR072UL1000X

Littelfuse

Electric Fuse

Inline/Holder

900 V

800 V

1 kA

Tab/Blade

455.955 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 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

PSR032UL1400X

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.4 kA

Tab/Blade

551.749 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032US1250X

Littelfuse

Electric Fuse

Inline/Holder

600 V

550 V

1.25 kA

Tab/Blade

336.661 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 550 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071UL0630Z

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

630 A

Tab/Blade

131.24 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

PSR072UL0900X

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

900 A

Tab/Blade

376.641 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

PSR032US1500X

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.5 kA

Tab/Blade

673.36 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 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

PSR032UL1250X

Littelfuse

Electric Fuse

Inline/Holder

600 V

550 V

1.25 kA

Tab/Blade

336.661 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 550 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032US1400X

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.4 kA

Tab/Blade

551.749 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

1.937 in (49.2 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR033US2250X

Littelfuse

Electric Fuse

Inline/Holder

550 V

450 V

2.25 kA

Tab/Blade

1.236 MJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

1.976 in (50.2 mm)

Indicator

4.268 in (108.4 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

PSR072FL1000Z

Littelfuse

Electric Fuse

Inline/Holder

900 V

800 V

1 kA

Threaded

455.955 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 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

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

PSR072FL0900Z

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

900 A

Threaded

376.641 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

PSR032FL1400Z

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.4 kA

Threaded

551.749 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR033FL2250Z

Littelfuse

Electric Fuse

Inline/Holder

550 V

450 V

2.25 kA

Threaded

1.236 MJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR071FL0630Z

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

630 A

Threaded

131.24 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

PSR071FS0630Z

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

630 A

Threaded

131.24 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

PSR032FS1500Z

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.5 kA

Threaded

673.36 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR033FS2250Z

Littelfuse

Electric Fuse

Inline/Holder

550 V

450 V

2.25 kA

Threaded

1.236 MJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

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

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

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

PSR032FL1500Z

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.5 kA

Threaded

673.36 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032FS1250Z

Littelfuse

Electric Fuse

Inline/Holder

600 V

550 V

1.25 kA

Threaded

336.661 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 550 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR032FS1400Z

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

1.4 kA

Threaded

551.749 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 450 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 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

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

PSR072FS0900Z

Littelfuse

Electric Fuse

Inline/Holder

1.1 KV

900 V

900 A

Threaded

376.641 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

PSR072FS1000Z

Littelfuse

Electric Fuse

Inline/Holder

900 V

800 V

1 kA

Threaded

455.955 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 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

PSR032FL1250Z

Littelfuse

Electric Fuse

Inline/Holder

600 V

550 V

1.25 kA

Threaded

336.661 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 550 VDC: 150000 A

Bulk

2.362 in (60 mm)

2.008 in (51 mm)

Indicator

3.736 in (94.9 mm)

CUL; UL

125 °C (257 °F)

Fast

35606300029

Littelfuse

Electric Fuse

Inline/Holder

440 V

630 mA

End Cap

2 J

-25 °C (-13 °F)

1 kA

10 ms

Pre Arcing Time: Open within 0.01 s at 1000% Rated Current

Bulk

0.25 in (6.35 mm)

3AB

1.25 in (31.75 mm)

CE

70 °C (158 °F)

Slow

L15S1000V

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

1 kA

Tab/Blade

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 100 VDC: 20000 A

Box

1.5 in (38.1 mm)

1.252 in (31.8 mm)

CSA; UL

125 °C (257 °F)

Very Fast

PSR073FL1400Z

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.4 kA

Threaded

1.168 MJ

-55 °C (-67 °F)

100 kA

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FS1400Z

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.4 kA

Threaded

1.168 MJ

-55 °C (-67 °F)

100 kA

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073UL1400X

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.4 kA

Tab/Blade

1.168 MJ

-55 °C (-67 °F)

100 kA

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FL1000Z

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

1 kA

Threaded

476.221 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FL1250Z

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.25 kA

Threaded

993.924 kJ

-55 °C (-67 °F)

100 kA

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FS1250Z

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.25 kA

Threaded

993.924 kJ

-55 °C (-67 °F)

100 kA

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073UL0800X

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

800 A

Tab/Blade

234.943 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

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073UL1250X

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1.25 kA

Tab/Blade

993.924 kJ

-55 °C (-67 °F)

100 kA

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FS1000Z

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

1 kA

Threaded

476.221 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FS1100Z

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

1.1 kA

Threaded

570.87 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073UL1000X

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

1 kA

Tab/Blade

476.221 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073UL1100X

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

1.1 kA

Tab/Blade

570.87 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.921 in (74.2 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

Fast

PSR073FS0900Z

Littelfuse

Electric Fuse

Inline/Holder

1.05 KV

800 V

900 A

Threaded

317.743 kJ

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 150000 A

Bulk

2.953 in (75 mm)

2.894 in (73.5 mm)

Indicator

4.268 in (108.4 mm)

CUL; UL

125 °C (257 °F)

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.