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)

UK50BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

50 A

End Cap

0.25 in (6.35 mm)

32 V

1.25 in (31.75 mm)

PSR070FL0050Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

50 A

Threaded

177 J

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 VDC: 150000 A

Bulk

2.913 in (74 mm)

1.693 in (43 mm)

Indicator

3.067 in (77.9 mm)

CCC; CUL; UL

125 °C (257 °F)

Fast

LA70QS50-14FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

50 A

End Cap

1.5 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

0.551 in (14 mm)

0.551 x 2.008 in (14 x 51 mm)

2.008 in (51 mm)

CSA; UL

Very Fast

0283050.MXJ

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

-40 °C (-40 °F)

40 ms

1.874 in (47.6 mm)

0.593 in (15.05 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)

0CNN050.V

Littelfuse

Electric Fuse

Inline/Holder

125 V

48 V

50 A

Tab/Blade

2.5 kA

3.181 in (80.8 mm)

48 V

3.18 in (80.77 mm)

UL

Very Fast

KLNR050

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

50 A

End Cap

200 kA

KLNR

Rated Breaking Capacity at 125 VDC: 20000 A

0.811 in (20.6 mm)

3 in (76.2 mm)

CSA; UL

Fast

LDZ50ES

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

50 A

End Cap

80 kA

LDZ

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

0895050.Z

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)

CY14X51G50

Littelfuse

Electric Fuse

Inline/Holder

400 V

50 A

End Cap

120 kA

0.551 in (14 mm)

400 V

0.551 x 2.008 in (14 x 51 mm)

0.551 x 2.008 in (14 x 51 mm)

2.008 in (51 mm)

IEC

Fast

142.6885.5502

Littelfuse

Electric Fuse

Inline/Holder

58 V

50 A

Tab/Blade

26 kJ

142

Rated Breaking Capacity at 58 VDC: 1000 A

Bulk

1.169 in (29.7 mm)

0.358 in (9.1 mm)

1.169 x 0.358 x 0.839 in (29.7 x 9.1 x 21.3 mm)

0.839 in (21.3 mm)

DIN 72581-3; UL

LCZ50ES

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

50 A

End Cap

80 kA

LCZ

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 17.87 in (76.2 x 453.89 mm)

17.87 in (453.89 mm)

Medium

0294050.MXJ-C

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

-40 °C (-40 °F)

40 ms

0.864 in (21.95 mm)

0.593 in (15.05 mm)

0.929 in (23.6 mm)

125 °C (257 °F)

JTD050ID

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)

Indicator

0.811 x 2.252 in (20.6 x 57.2 mm)

2.374 in (60.3 mm)

CSA; UL

Time Delay

LCY50ES

Littelfuse

Electric Fuse

Inline/Holder

5.5 KV

50 A

End Cap

80 kA

LCY

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

0TLS050.TXL

Littelfuse

Electric Fuse

Inline/Holder

170 V

50 A

Tab/Blade

100 kA

Bulk

0.563 in (14.3 mm)

170 V

0.563 x 0.877 in (14.3 x 22.27 mm)

0.877 in (22.28 mm)

CUL; IEC; TUV; UL

0HEV050.ZXPCBL2

Littelfuse

Electric Fuse

Inline/Holder

275 V

50 A

Tab/Blade

1.495 kJ

-40 °C (-40 °F)

10 kA

50 ms

1.53 in (38.86 mm)

CSA; UL

125 °C (257 °F)

CY22X58M50

Littelfuse

Electric Fuse

Inline/Holder

690 V

50 A

End Cap

80 kA

0.866 in (22 mm)

500 V

0.866 x 2.283 in (22 x 58 mm)

0.866 x 2.283 in (22 x 58 mm)

2.283 in (58 mm)

IEC

Time Lag

PAL450BP

Littelfuse

Electric Fuse

Inline/Holder

50 A

Tab/Blade

Blister

50E-1C-2.75S

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

50 A

End Cap

80 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 10.875 in (76.2 x 276.23 mm)

10.875 in (276.23 mm)

Medium

TLS050LB

Littelfuse

Electric Fuse

Inline/Holder

170 V

50 A

Tab/Blade

100 kA

0.563 in (14.3 mm)

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

CE; UL

TLS050

Littelfuse

Electric Fuse

Inline/Holder

170 V

50 A

End Cap

Silver

Rated Breaking Capacity at 170 VDC: 100000

0.563 in (14.3 mm)

e4

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

UL

0295050.H

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)

TLN50

Littelfuse

Electric Fuse

Inline/Holder

170 V

50 A

End Cap

Rated Breaking Capacity at 170 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 2.811 in (20.6 x 71.4 mm)

2.811 in (71.4 mm)

UL

Fast

PSR070FS0050Z

Littelfuse

Electric Fuse

Inline/Holder

1.3 KV

1 KV

50 A

Threaded

177 J

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 1000 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

LA70QS50-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

50 A

Tab/Blade

880 mJ

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1 in (25.4 mm)

1 x 2.874 in (25.4 x 73 mm)

2.874 in (73 mm)

CSA; UL

Fast

0498050.MX1M5-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)

0.63 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

TLS050V

Littelfuse

Electric Fuse

Inline/Holder

170 V

50 A

Tab/Blade

Silver

100 kA

0.563 in (14.3 mm)

e4

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

CE; UL

NH00CG50

Littelfuse

Electric Fuse

Inline/Holder

500 V

440 V

50 A

Tab/Blade

120 kA

Rated Breaking Capacity at 440 VDC: 25000 A

2.02 in (51.3 mm)

0.787 in (20 mm)

Indicator

2.02 x 0.787 x 2.126 in (51.3 x 20 x 54 mm)

2.126 in (54 mm)

VDE

153.0020.5502

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

6.9 kJ

-40 °C (-40 °F)

2 kA

100 ms

0.63 in (16 mm)

0.472 in (12 mm)

32 V

0.307 in (7.8 mm)

CUL; ISO; UL

125 °C (257 °F)

FLSR50ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

50 A

End Cap

200 kA

1.063 in (27 mm)

Indicator

1.063 x 5.5 in (27 x 139.7 mm)

5.5 in (139.7 mm)

CSA; UL

Time Delay

KLSR050

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

50 A

End Cap

200 kA

KLSR

Rated Breaking Capacity at 300 VDC: 20000 A

1.063 in (27 mm)

5.5 in (139.7 mm)

CSA; UL

Fast

0498050.MXTM6

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

50E1C2.75

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

50 A

End Cap

80 kA

5 m

3 in (76.2 mm)

Striker

3 x 10.875 in (76.2 x 276.23 mm)

10.874 in (276.2 mm)

Medium

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.