500 V Fuses 75

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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

KLK15

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

15 A

End Cap

100 kA

2 m

Pre Arcing Time: Open within 120 s at 200% Rated Current

0.406 in (10.31 mm)

600 V

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; QPL; UL

Fast

LA50QS100-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

100 A

Tab/Blade

4.4 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS1000-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

1 kA

Tab/Blade

560 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

3 in (76.2 mm)

500 V

3 x 3.22 in (76.2 x 81.8 mm)

3.22 in (81.8 mm)

CSA; UL

Fast

LA50QS1200-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

1.2 kA

Tab/Blade

930 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

3 in (76.2 mm)

500 V

3 x 3.22 in (76.2 x 81.8 mm)

3.22 in (81.8 mm)

CSA; UL

Fast

LA50QS125-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

125 A

Tab/Blade

5.6 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.22 in (31 mm)

500 V

1.22 x 2.13 in (31 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS150-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

150 A

Tab/Blade

9 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.22 in (31 mm)

500 V

1.22 x 2.13 in (31 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS175-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

175 A

Tab/Blade

15 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.22 in (31 mm)

500 V

1.22 x 2.13 in (31 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS200-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

200 A

Tab/Blade

20 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.22 in (31 mm)

500 V

1.22 x 2.13 in (31 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS225-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

225 A

Tab/Blade

25 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

LA50QS250-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

250 A

Tab/Blade

29 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

LA50QS300-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 A

Tab/Blade

55 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

LA50QS35-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

35 A

Tab/Blade

560 mJ

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS350-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

350 A

Tab/Blade

88 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

LA50QS40-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

40 A

Tab/Blade

690 mJ

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS400-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

400 A

Tab/Blade

98 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.5 in (38.1 mm)

500 V

1.5 x 2.091 in (38.1 x 53.1 mm)

2.091 in (53.1 mm)

CSA; UL

Fast

LA50QS450-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

450 A

Tab/Blade

130 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2 in (50.8 mm)

500 V

2 x 2.22 in (50.8 x 56.4 mm)

2.22 in (56.4 mm)

CSA; UL

Fast

LA50QS50-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

50 A

Tab/Blade

1.1 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS500-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

500 A

Tab/Blade

160 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2 in (50.8 mm)

500 V

2 x 2.22 in (50.8 x 56.4 mm)

2.22 in (56.4 mm)

CSA; UL

Fast

LA50QS60-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

60 A

Tab/Blade

1.8 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS600-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

600 A

Tab/Blade

220 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2 in (50.8 mm)

500 V

2 x 2.22 in (50.8 x 56.4 mm)

2.22 in (56.4 mm)

CSA; UL

Fast

LA50QS70-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

70 A

Tab/Blade

1.9 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS700-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

700 A

Tab/Blade

270 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2.5 in (63.5 mm)

500 V

2.5 x 2.22 in (63.5 x 56.4 mm)

2.22 in (56.4 mm)

CSA; UL

Fast

LA50QS80-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

80 A

Tab/Blade

2.6 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS800-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

800 A

Tab/Blade

360 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

2.5 in (63.5 mm)

500 V

2.5 x 2.22 in (63.5 x 56.4 mm)

2.22 in (56.4 mm)

CSA; UL

Fast

LA50QS90-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

90 A

Tab/Blade

3.6 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1 in (25.4 mm)

500 V

1 x 2.13 in (25.4 x 54.1 mm)

2.13 in (54.1 mm)

CSA; UL

Fast

LA50QS900-4

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

900 A

Tab/Blade

500 J

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

3 in (76.2 mm)

500 V

3 x 3.22 in (76.2 x 81.8 mm)

3.22 in (81.8 mm)

CSA; UL

Fast

PSR033FL1400Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.4 kA

Threaded

583.552 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR033FL1500Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.5 kA

Threaded

674.538 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR033FL1600Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.6 kA

Threaded

779.948 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR033FL1800Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.8 kA

Threaded

952.196 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR033FL2000Z

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

2 kA

Threaded

1.234 MJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

2.008 in (51 mm)

Indicator

4.268 in (108.4 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

PSR033FS1400Z

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.4 kA

Threaded

583.552 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033FS1500Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.5 kA

Threaded

674.538 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033FS1600Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.6 kA

Threaded

779.948 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033FS1800Z

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.8 kA

Threaded

952.196 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033FS2000Z

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

2 kA

Threaded

1.234 MJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

0ADEC9100-BE

Bel Fuse

Electric Fuse

Inline/Holder

500 V

500 V

10 A

End Cap

100 J

-55 °C (-67 °F)

Silver

30 kA

10 s

Interrupting Current Max(DC): 20000 A, Pre Arcing Time: Open within 10 s at 300% Rated Current

Bulk

0.252 in (6.4 mm)

e4

500 V

0.236 x 1.26 in (6 x 32 mm)

1.252 in (31.8 mm)

CUL; UL

105 °C (221 °F)

Fast

PSR033UL1400X

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.4 kA

Tab/Blade

583.552 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033UL1500X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.5 kA

Tab/Blade

674.538 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033US1250X

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.25 kA

Tab/Blade

476.902 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033US1400X

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.4 kA

Tab/Blade

583.552 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033US1600X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.6 kA

Tab/Blade

779.948 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033UL1250X

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 V

1.25 kA

Tab/Blade

476.902 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033US1500X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.5 kA

Tab/Blade

674.538 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033UL1600X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.6 kA

Tab/Blade

779.948 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033UL1800X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.8 kA

Tab/Blade

952.196 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033US1800X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.8 kA

Tab/Blade

952.196 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 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

PSR033DL1600X

Littelfuse

Electric Fuse

Inline/Holder

650 V

500 V

1.6 kA

Tab/Blade

779.948 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 150000 A

Bulk

2.894 in (73.5 mm)

1.976 in (50.2 mm)

Indicator

4.268 in (108.4 mm)

CCC; 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.