700 V Fuses 440

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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

LA070URD32TTI0900

Littelfuse

Electric Fuse

Inline/Holder

700 V

900 A

End Cap

170 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA070URD32TTI1000

Littelfuse

Electric Fuse

Inline/Holder

700 V

1 kA

End Cap

240 J

200 kA

2.374 in (60.3 mm)

2.374 in (60.3 mm)

Indicator

2.374 x 2.374 x 1.929 in (60.3 x 60.3 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA070URD33KI0500

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 A

Tab/Blade

19 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI0550

Littelfuse

Electric Fuse

Inline/Holder

700 V

550 A

Tab/Blade

27 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI0630

Littelfuse

Electric Fuse

Inline/Holder

700 V

630 A

Tab/Blade

40 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI0700

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 A

Tab/Blade

55 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI0800

Littelfuse

Electric Fuse

Inline/Holder

700 V

800 A

Tab/Blade

95 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI0900

Littelfuse

Electric Fuse

Inline/Holder

700 V

900 A

Tab/Blade

135 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI1000

Littelfuse

Electric Fuse

Inline/Holder

700 V

1 kA

Tab/Blade

170 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI1100

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.1 kA

Tab/Blade

240 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI1250

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.25 kA

Tab/Blade

350 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33KI1400

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.4 kA

Tab/Blade

480 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0500

Littelfuse

Electric Fuse

Inline/Holder

700 V

500 A

Tab/Blade

19 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0550

Littelfuse

Electric Fuse

Inline/Holder

700 V

550 A

Tab/Blade

27 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0630

Littelfuse

Electric Fuse

Inline/Holder

700 V

630 A

Tab/Blade

40 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0700

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 A

Tab/Blade

55 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0800

Littelfuse

Electric Fuse

Inline/Holder

700 V

800 A

Tab/Blade

95 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI0900

Littelfuse

Electric Fuse

Inline/Holder

700 V

900 A

Tab/Blade

135 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI1000

Littelfuse

Electric Fuse

Inline/Holder

700 V

1 kA

Tab/Blade

170 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI1100

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.1 kA

Tab/Blade

240 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI1250

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.25 kA

Tab/Blade

350 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33LI1400

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.4 kA

Tab/Blade

480 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.874 in (74.5 x 74.5 x 47.6 mm)

1.874 in (47.6 mm)

UL

Very Fast

LA070URD33TTI0900

Littelfuse

Electric Fuse

Inline/Holder

700 V

900 A

End Cap

135 J

200 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 1.929 in (74.5 x 74.5 x 49 mm)

1.929 in (49 mm)

UL

Very Fast

LA070URD73LI1600

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.6 kA

Tab/Blade

1.43 kJ

100 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 2.854 in (74.5 x 74.5 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA070URD73TTI1600

Littelfuse

Electric Fuse

Inline/Holder

700 V

1.6 kA

End Cap

1.43 kJ

100 kA

2.933 in (74.5 mm)

2.933 in (74.5 mm)

Indicator

2.933 x 2.933 x 2.854 in (74.5 x 74.5 x 72.5 mm)

2.854 in (72.5 mm)

UL

Very Fast

LA70P10004

Littelfuse

Electric Fuse

Inline/Holder

700 V

650 V

1 kA

200 kA

LA70P

Rated Breaking Capacity at 650 VDC: 20000 A

CSA; UL

Fast

LA70P12004

Littelfuse

Electric Fuse

Inline/Holder

700 V

650 V

1.2 kA

200 kA

LA70P

Rated Breaking Capacity at 650 VDC: 20000 A

CSA; UL

Fast

LA70P9004

Littelfuse

Electric Fuse

Inline/Holder

700 V

650 V

900 A

200 kA

LA70P

Rated Breaking Capacity at 650 VDC: 20000 A

CSA; UL

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

LA70QS125-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

125 A

Tab/Blade

6.9 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

LA70QS125-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

125 A

Tab/Blade

6.9 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

LA70QS150-4

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

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

LA70QS175-4

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

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

LA70QS200-4

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

LA70QS250-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

250 A

Tab/Blade

42 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 2.843 in (38.1 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

Fast

LA70QS300-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

300 A

Tab/Blade

55 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 2.843 in (38.1 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

Fast

LA70QS35-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

35 A

Tab/Blade

470 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

LA70QS350-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

350 A

Tab/Blade

72 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 2.843 in (38.1 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

Fast

LA70QS40-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

40 A

Tab/Blade

580 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

LA70QS400-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

400 A

Tab/Blade

99 J

200 kA

Rated Breaking Capacity at 700 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 2.843 in (38.1 x 72.2 mm)

2.843 in (72.2 mm)

CSA; UL

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

LA70QS450-4

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

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

LA70QS500-4K

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

500 A

Tab/Blade

160 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

LA70QS500-4

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

500 A

Tab/Blade

150 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

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.