50 A Fuses 372

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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

FLNR050.T

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

50 A

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

0.815 in (20.7 mm)

3 in (76.2 mm)

CSA; UL

Time Delay

JLS050

Littelfuse

Electric Fuse

Inline/Holder

600 V

50 A

End Cap

200 kA

Bulk

1.063 in (27 mm)

1.063 x 2.374 in (27 x 60.3 mm)

2.374 in (60.3 mm)

CE; CSA; QPL; UL

Fast

0HEV050.ZXP2Y

Littelfuse

Electric Fuse

Inline/Holder

275 V

50 A

Tab/Blade

1.495 kJ

-40 °C (-40 °F)

10 kA

50 ms

1.531 in (38.9 mm)

CSA; UL

125 °C (257 °F)

0SLC050.T

Littelfuse

Electric Fuse

50 A

End Cap

100 kA

0.406 in (10.3 mm)

G

480 V

0.406 x 2.252 in (10.3 x 57.2 mm)

2.252 in (57.2 mm)

CSA, UL

Medium

L50QS050.T

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

50 A

Tab/Blade

211 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

1 in (25.4 mm)

10 ms

2.125 in (53.98 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

PF-FB2-50

Bourns

Electric Fuse

Inline/Holder

800 V

800 V

50 A

Tab/Blade

800 J

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 800 VDC: 50000 A

Bulk

0.949 in (24.1 mm)

2.598 in (66 mm)

CUL; UL

125 °C (257 °F)

0498050.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

13 kJ

-40 °C (-40 °F)

Tin

2 kA

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

e3

0.63 x 0.472 x 0.315 in (16 x 12 x 8 mm)

0.315 in (8 mm)

UL

125 °C (257 °F)

Time Delay

0498050.MXT

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

13 kJ

-40 °C (-40 °F)

2 kA

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

0.63 x 0.472 x 0.315 in (16 x 12 x 8 mm)

0.315 in (8 mm)

UL

125 °C (257 °F)

Time Delay

142.5631.5502

Littelfuse

Electric Fuse

Inline/Holder

58 V

50 A

Tab/Blade

6.9 kJ

-40 °C (-40 °F)

Tin

1 kA

6900

0.63 in (16 mm)

0.472 in (12 mm)

e3

58 V

0.472 x 0.307 x 0.63 in (12 x 7.8 x 16 mm)

0.307 in (7.8 mm)

UL

125 °C (257 °F)

JLLN050.T

Littelfuse

Electric Fuse

Inline/Holder

300 V

160 V

50 A

End Cap

200 kA

Rated Breaking Capacity at 160 VDC: 20000 A

0.563 in (14.3 mm)

300 V

0.874 in (22.2 mm)

CE; CSA; CUL; UL

Fast

JTD050

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

50 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.063 in (27 mm)

2.374 in (60.3 mm)

CSA; UL

Time Delay

PF-KT1-50

Bourns

Electric Fuse

Inline/Holder

275 V

500 V

50 A

Tab/Blade

9.203 kJ

-55 °C (-67 °F)

10 kA

1 s

Bulk

0.406 in (10.3 mm)

1.496 in (38 mm)

125 °C (257 °F)

C22G50

Eaton Corporation

Electric Fuse

Inline/Holder

690 V

690 V

50 A

End Cap

80 kA

C22

0.866 in (22 mm)

0.866 x 2.283 in (22 x 58 mm)

2.283 in (58 mm)

IEC

FLSR050

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

50 A

200 kA

FLSR

Rated Breaking Capacity at 300 VDC: 20000 A

1.063 in (27 mm)

5.5 in (139.7 mm)

CSA; UL

Time Delay

0913090

Phoenix Contact

Electric Fuse

Inline/Holder

400 V

250 V

50 A

End Cap

-60 °C (-76 °F)

0.591 in (15 mm)

400 V

1.417 in (36 mm)

85 °C (185 °F)

0498050.MXM6

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

13 kJ

-40 °C (-40 °F)

2 kA

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

0.63 x 0.472 x 0.315 in (16 x 12 x 8 mm)

0.315 in (8 mm)

UL

125 °C (257 °F)

Time Delay

0299050.ZXT

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

11.3 kJ

-40 °C (-40 °F)

Silver

1 kA

40 ms

11300

Bulk

1.15 in (29.2 mm)

0.346 in (8.8 mm)

e4

32 V

1.15 x 0.348 x 0.85 in (29.21 x 8.85 x 21.59 mm)

0.85 in (21.6 mm)

UL

125 °C (257 °F)

Time Delay

995050

Littelfuse

Electric Fuse

Inline/Holder

58 V

50 A

-40 °C (-40 °F)

1 kA

0.555 in (14.1 mm)

0.472 in (12 mm)

0.555 x 0.472 x 1.063 in (14.1 x 12 x 27 mm)

1.063 in (27 mm)

125 °C (257 °F)

Slow

5NLE-50EL

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

50 A

End Cap

80 kA

5NLE-50E

3 in (76.2 mm)

3 x 17.874 in (76.2 x 454 mm)

17.874 in (454 mm)

L25S050

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

50 A

Tab/Blade

200 kA

Rated Breaking Capacity at 250 VDC: 20000 A

0.811 in (20.6 mm)

1.626 in (41.3 mm)

CE; CSA; UL

Very Fast

L60S050

Littelfuse

Electric Fuse

Inline/Holder

600 V

50 A

Tab/Blade

-55 °C (-67 °F)

200 kA

0.811 in (20.6 mm)

2.78 in (70.6 mm)

CSA; UL

125 °C (257 °F)

Very Fast

KLA50

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

50 A

End Cap

100 kA

KLA

Rated Breaking Capacity at 150 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

LDZ50E

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

50 A

End Cap

80 kA

LDZ

3 in (76.2 mm)

3 x 15.875 in (76.2 x 403.23 mm)

15.875 in (403.23 mm)

Medium

LCU50E

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

50 A

End Cap

80 kA

LCU

3 in (76.2 mm)

3 x 17.875 in (76.2 x 454.03 mm)

17.875 in (454.03 mm)

Medium

L50S50

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

50 A

Tab/Blade

200 kA

Rated Breaking Capacity at 450 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 1.626 in (20.6 x 41.3 mm)

1.626 in (41.3 mm)

CSA; UL

Fast

KLW50

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

50 A

End Cap

100 kA

KLW

Rated Breaking Capacity at 150 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 2 in (20.6 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

50E-1C-2.75L

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

50 A

End Cap

80 kA

50E-1C-2.75

3 in (76.2 mm)

3 x 10.874 in (76.2 x 276.2 mm)

10.874 in (276.2 mm)

50E-1CL-15.5

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

50 A

Tab/Blade

60 kA

4.75 in (120.65 mm)

4.75 x 18.1 in (120.65 x 459.74 mm)

18.1 in (459.74 mm)

Medium

0895050U

Littelfuse

Electric Fuse

Inline/Holder

58 V

50 A

Tab/Blade

4.9 kJ

-40 °C (-40 °F)

1 kA

40 ms

Bulk

0.571 in (14.5 mm)

0.472 in (12 mm)

58 V

0.63 in (16 mm)

ISO; SAE

125 °C (257 °F)

KLH50

Littelfuse

Electric Fuse

Inline/Holder

500 V

450 V

50 A

Tab/Blade

200 kA

KLH

Rated Breaking Capacity at 450 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 1.626 in (20.6 x 41.3 mm)

1.626 in (41.3 mm)

CSA; UL

Fast

581050

Littelfuse

Electric Fuse

Inline/Holder

48 V

48 V

50 A

Tab/Blade

2.5 kA

1.535 in (39 mm)

1.195 in (30.35 mm)

1.535 x 1.195 x 0.683 in (39 x 30.35 x 17.35 mm)

0.683 in (17.35 mm)

UL

0HEV050.ZXC2

Littelfuse

Electric Fuse

Inline/Holder

275 V

50 A

End Cap

1.495 kJ

-40 °C (-40 °F)

10 kA

50 ms

0.406 in (10.3 mm)

1.531 in (38.9 mm)

CSA; UL

125 °C (257 °F)

50E-1C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

50 A

End Cap

80 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 15.875 in (76.2 x 403.23 mm)

15.875 in (403.23 mm)

Medium

0456050.DRSD

Littelfuse

Electric Fuse

Surface Mount

125 V

75 V

50 A

Wraparound

2.7 kJ

-55 °C (-67 °F)

Silver

100 A

1 m

Pre Arcing Time: Open within 60 s at 200% Rated Current, Rated Breaking Capacity at 75 VDC: 600 A

Tape And Reel

0.48 in (12.2 mm)

0.177 in (4.5 mm)

e4

125 V

Nano

0.177 in (4.5 mm)

CUL; UL

125 °C (257 °F)

Fast

156.5611.5501

Littelfuse

Electric Fuse

Inline/Holder

36 V

50 A

Tab/Blade

-40 °C (-40 °F)

375 A

1 m

Bulk

0.709 in (18 mm)

0.551 in (14 mm)

0.256 in (6.5 mm)

125 °C (257 °F)

LDN50E

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

50 A

End Cap

80 kA

LDN

3 in (76.2 mm)

3 x 18.875 in (76.2 x 479.43 mm)

18.875 in (479.43 mm)

Medium

0495050TXA

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

8.8 kJ

-40 °C (-40 °F)

1 kA

40 ms

0.555 in (14.1 mm)

0.472 in (12 mm)

32 V

1.063 in (27 mm)

UL

125 °C (257 °F)

Time Delay

SPXI050.TXB

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

50 A

End Cap

657 J

50 kA

6 m

Bulk

0.813 in (20.65 mm)

6.44 in (163.58 mm)

TUV; UL

SPXI050.T

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

50 A

End Cap

657 J

50 kA

6 m

Bulk

0.813 in (20.65 mm)

6.222 in (158.04 mm)

CUL; UL

0CBO050.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

10 kA

0.812 in (20.62 mm)

1.623 in (41.23 mm)

Fast

LA70QS50-22FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

50 A

End Cap

800 mJ

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

0.866 in (22 mm)

0.866 x 2.283 in (22 x 58 mm)

2.283 in (58 mm)

CSA; UL

Very Fast

0295050.U

Littelfuse

Electric Fuse

50 A

-40 °C (-40 °F)

0.898 in (22.8 mm)

0.638 in (16.2 mm)

32 V

0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm)

0.846 in (21.5 mm)

125 °C (257 °F)

1692500100

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

21 kJ

-40 °C (-40 °F)

1 kA

Bulk

1.173 in (29.8 mm)

0.358 in (9.1 mm)

40 ms

0.835 in (21.2 mm)

85 °C (185 °F)

Time Lag

1652500100

Littelfuse

Electric Fuse

Inline/Holder

58 V

50 A

Tab/Blade

21 kJ

-40 °C (-40 °F)

1 kA

Bulk

1.173 in (29.8 mm)

0.358 in (9.1 mm)

40 ms

0.835 in (21.2 mm)

CUL; UL

85 °C (185 °F)

Time Lag

0293050.MXJ

Littelfuse

Electric Fuse

50 A

-40 °C (-40 °F)

0.906 in (23 mm)

0.646 in (16.4 mm)

32 V

0.906 x 0.646 x 1.205 in (23 x 16.4 x 30.6 mm)

1.205 in (30.6 mm)

125 °C (257 °F)

0CCK050.V

Littelfuse

Electric Fuse

Inline/Holder

125 V

50 A

Tab/Blade

10 kA

0.81 in (20.57 mm)

3.74 in (94.99 mm)

Time Delay

SLC050

Littelfuse

Electric Fuse

Inline/Holder

480 V

50 A

End Cap

100 kA

0.406 in (10.3 mm)

G

480 V

0.406 x 2.252 in (10.3 x 57.2 mm)

2.252 in (57.2 mm)

CSA; UL

Medium Time Delay

0498050.MX1M6-CN

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

13 kJ

-40 °C (-40 °F)

2 kA

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

0.315 in (8 mm)

UL

125 °C (257 °F)

Time Delay

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.