700 V Fuses 148

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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

LA70QS25-14F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

25 A

End Cap

270 mJ

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

LA70QS80-22F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

80 A

End Cap

3.8 J

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

LA70QS20-14F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

20 A

End Cap

160 mJ

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

L70QS175.V

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

175 A

Tab/Blade

4.219 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

LA70QS175-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

175 A

Tab/Blade

14 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.22 in (31 mm)

1.22 x 2.874 in (31 x 73 mm)

2.874 in (73 mm)

CSA; UL

Fast

LA70QS150-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

150 A

Tab/Blade

11 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.22 in (31 mm)

1.22 x 2.874 in (31 x 73 mm)

2.874 in (73 mm)

CSA; UL

Fast

LA70QS20-22FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

20 A

End Cap

76 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

LA70QS100-22F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

100 A

End Cap

8 J

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

LA70QS32-14F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

32 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

LA70QS100-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

100 A

Tab/Blade

3.6 J

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

LA70QS200-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

200 A

Tab/Blade

19 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.22 in (31 mm)

1.22 x 2.874 in (31 x 73 mm)

2.874 in (73 mm)

CSA; UL

Fast

LA70QS50-22F

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

LA70QS40-22F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

40 A

End Cap

480 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

LA70QS80-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

80 A

Tab/Blade

2.3 J

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

L70QS080.V

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

80 A

Tab/Blade

452 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS450.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

450 A

Tab/Blade

38.946 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very 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

LA70QS25-22FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

25 A

End Cap

125 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

LA70QS20-14FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

20 A

End Cap

160 mJ

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

L70QS700.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

700 A

Tab/Blade

99.387 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2.5 in (63.5 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS500.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

500 A

Tab/Blade

42.747 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS300.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

16.296 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

LA70QS32-22F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

32 A

End Cap

270 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

LA70QS90-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

90 A

Tab/Blade

3 J

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

LA70QS80-22FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

80 A

End Cap

3.8 J

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

LA70QS16-14FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

16 A

End Cap

100 mJ

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

LA70QS63-22F

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

63 A

End Cap

1.85 J

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

L70QS225.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

225 A

Tab/Blade

9.226 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

LA70QS450-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

450 A

Tab/Blade

125 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

2 in (50.8 mm)

2 x 2.843 in (50.8 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

Fast

LA70QS25-14FI

Littelfuse

Electric Fuse

Inline/Holder

690 V

700 V

25 A

End Cap

270 mJ

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

L70QS350

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

350 A

Tab/Blade

24.778 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS070

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

70 A

Tab/Blade

359 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS050

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

50 A

Tab/Blade

196 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS125

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

125 A

Tab/Blade

2.208 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS250

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

250 A

Tab/Blade

10.999 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS080

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

80 A

Tab/Blade

452 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS800

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

800 A

Tab/Blade

156.137 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS035

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

35 A

Tab/Blade

129 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS500

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

500 A

Tab/Blade

42.747 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS600

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

600 A

Tab/Blade

67.363 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS175

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

175 A

Tab/Blade

4.219 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS400

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

400 A

Tab/Blade

34.225 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS700

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

700 A

Tab/Blade

99.387 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS450

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

450 A

Tab/Blade

38.946 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS090

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

90 A

Tab/Blade

625 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS200

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

200 A

Tab/Blade

5.529 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS300

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

16.296 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS040

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

40 A

Tab/Blade

153 J

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

1 in (25.4 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very 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.