600 V Fuses 2,400+

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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

ATM20

Mersen S A

Electric Fuse

Inline/Holder

600 V

600 V

20 A

End Cap

100 kA

Rated Breaking Capacity = 27A-10kA

Bulk

0.394 in (10 mm)

600 V

Midget

0.394 x 1.496 in (10 x 38 mm)

1.496 in (38 mm)

CSA; UL

Fast

KTK-R-10

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

10 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

LPJ-150SP

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

150 A

Tab/Blade

300 kA

Rated Breaking Capacity at 300 VDC: 100000 A

1.63 in (41.4 mm)

J

600 V

1.63 x 3 in (41.4 x 76.2 mm)

3 in (76.2 mm)

CE; CSA; UL

Time Delay

A6T500

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

500 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

2.063 in (52.4 mm)

2.063 x 1.701 in (52.4 x 43.2 mm)

1.701 in (43.2 mm)

CSA; UL

Fast

ATDR2-1/2

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

2.5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

A6T50

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

50 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.811 in (20.6 mm)

0.811 x 1.512 in (20.6 x 38.4 mm)

1.512 in (38.4 mm)

CSA; UL

Fast

ATQR20

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA, CE, UL

80 °C (176 °F)

Time Delay

FNQ-R-1-1/2

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

1.5 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

LPJ-70SPI

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

70 A

Tab/Blade

300 kA

Rated Breaking Capacity at 300 VDC: 100000 A

Box

1.126 in (28.6 mm)

J

600 V

Indicator

1.126 x 2.626 in (28.6 x 66.7 mm)

2.626 in (66.7 mm)

CE; CSA; UL

Time Delay

AJT125

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

125 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.614 in (41 mm)

Indicator

1.614 x 2.992 in (41 x 76 mm)

5.748 in (146 mm)

Time Delay

FNQ-R-2-1/2

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

2.5 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

KTK-R-1/10

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

100 mA

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

LPJ-10SP

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

10 A

End Cap

300 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.811 in (20.6 mm)

J

600 V

0.811 x 2.252 in (20.6 x 57.2 mm)

2.252 in (57.2 mm)

CE; CSA; UL

Time Delay

ATQR5

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA, CE, UL

80 °C (176 °F)

Time Delay

AJT200

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

200 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

1.614 in (41 mm)

Indicator

1.614 x 2.992 in (41 x 76 mm)

5.748 in (146 mm)

Time Delay

LP-CC-3-2/10

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

150 V

3.2 A

End Cap

200 kA

Rated Breaking Capacity at 150 VDC: 20000 A

Box

0.394 in (10 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.496 in (38 mm)

CE; CSA; UL

Time Delay

ATQR4

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

4 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA, CE, UL

80 °C (176 °F)

Time Delay

LP-CC-2-1/2

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

2.5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Box

0.394 in (10 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.496 in (38 mm)

CE; CSA; UL

Time Delay

ATDR25

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

25 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

FNQ-R-2-1/4

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

2.25 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

ATDR2-1/4

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

2.25 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

LP-CC-1-1/4

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

1.25 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Box

0.394 in (10 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.496 in (38 mm)

CE; CSA; UL

Time Delay

7012540.5

Siba

Electric Fuse

Inline/Holder

600 V

500 V

5 A

End Cap

10 J

Nickel

50 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

0.25 in (6.35 mm)

1 ms

0.25 x 1.252 in (6.35 x 31.8 mm)

1.252 in (31.8 mm)

CUL; UL

Very Fast

ATQR2-1/2

Mersen S A

Electric Fuse

Inline/Holder

600 V

2.5 A

End Cap

200 kA

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA, CE, UL

80 °C (176 °F)

Time Delay

KTK-15

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

15 A

End Cap

100 kA

0.406 in (10.3 mm)

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CSA, UL

Fast

KTK-R-12

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

12 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

KTK-R-1/2

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

500 mA

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

7012540.5IP

Siba

Electric Fuse

Inline/Holder

600 V

500 V

5 A

End Cap

10 J

Nickel

50 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

0.25 in (6.35 mm)

1 ms

0.25 x 1.252 in (6.35 x 31.8 mm)

1.252 in (31.8 mm)

CUL; UL

Very Fast

ATDR2

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

2 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

JKS-40

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

40 A

End Cap

200 kA

Box

1.063 in (27 mm)

J

600 V

1.063 x 2.374 in (27 x 60.3 mm)

2.374 in (60.3 mm)

CE; CSA; UL

Fast

LP-CC-4

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

150 V

4 A

End Cap

200 kA

Rated Breaking Capacity at 150 VDC: 20000 A

Box

0.394 in (10 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.496 in (38 mm)

CE; CSA; UL

Time Delay

ATQR4-1/2

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

4.5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA, CE, UL

80 °C (176 °F)

Time Delay

ATDR12

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

12 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

ATDR1/2

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

500 mA

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

ATDR5

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

ATM3

Mersen S A

Electric Fuse

Inline/Holder

600 V

600 V

3 A

End Cap

100 kA

Rated Breaking Capacity at 500 VDC: 100000 A

0.394 in (10 mm)

600 V

Midget

0.394 x 1.496 in (10 x 38 mm)

1.496 in (38 mm)

CSA; UL

Fast

LPJ-400SPI

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

400 A

Tab/Blade

300 kA

Rated Breaking Capacity at 300 VDC: 100000 A

Box

2.11 in (53.6 mm)

J

600 V

Indicator

2.11 x 1.508 in (53.6 x 38.3 mm)

1.508 in (38.3 mm)

CE; CSA; UL

Time Delay

AJT200N

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

200 A

Tab/Blade

200 kA

1.614 in (41 mm)

5.748 in (146 mm)

CSA; IEC; UL

Time Delay

ATDR3

Mersen S A

Electric Fuse

Inline/Holder

600 V

300 V

3 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 100000 A

0.409 in (10.4 mm)

0.409 x 1.5 in (10.4 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

FNQ-R-20

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

Nickel

200 kA

Rated Breaking Capacity at 300 VDC: 10000 A

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

JJS-600

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

600 A

Tab/Blade

200 kA

3.984 in (101.2 mm)

3.984 x 1.78 in (101.2 x 45.2 mm)

1.78 in (45.2 mm)

CE; CSA; UL

Very Fast

AJT125N

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

125 A

Tab/Blade

200 kA

1.614 in (41 mm)

5.748 in (146 mm)

CSA; IEC; UL

Time Delay

FRS-R-100

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

100 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Box

1.339 in (34 mm)

RK5

600 V

1.339 x 7.874 in (34 x 200 mm)

7.874 in (200 mm)

CE; CSA; UL

Time Delay

AJT125EI

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

125 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 100000 A

Indicator

3.22 in (81.8 mm)

3.22 in (81.8 mm)

UL

Time Delay

LPJ-150SPI

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

300 V

150 A

Tab/Blade

300 kA

Rated Breaking Capacity at 300 VDC: 100000 A

Box

1.63 in (41.4 mm)

J

600 V

Indicator

1.63 x 3 in (41.4 x 76.2 mm)

3 in (76.2 mm)

CE; CSA; UL

Time Delay

AJT125/400

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

125 A

Tab/Blade

200 kA

2.126 in (54 mm)

J

600 V

2.126 x 7.126 in (54 x 181 mm)

7.126 in (181 mm)

IEC, UL

Time Lag

AJT200/400

Mersen S A

Electric Fuse

Inline/Holder

600 V

500 V

200 A

Tab/Blade

200 kA

2.126 in (54 mm)

J

600 V

7.126 in (181 mm)

IEC, UL

Time Lag

FNQ-R-4

Eaton Corporation

Electric Fuse

Inline/Holder

600 V

4 A

End Cap

Nickel

200 kA

Box

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

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.