1.25 KV Fuses 6

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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

X301021

Mersen S A

Electric Fuse

Panel Mount

1.25 KV

250 A

Threaded

9.58 kJ

150 kA

Bulk

2.913 in (74 mm)

1.567 in (39.8 mm)

AR

70

Indicator

1.831 in (46.5 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra Fast

D301027

Mersen S A

Electric Fuse

Panel Mount

1.25 KV

250 A

Threaded

8.9 kJ

126 kA

Bulk

2.913 in (74 mm)

2.008 in (51 mm)

Indicator

2.224 in (56.5 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra Fast

F301029

Mersen S A

Electric Fuse

Panel Mount

1.25 KV

315 A

Threaded

16 kJ

126 kA

Bulk

2.913 in (74 mm)

2.008 in (51 mm)

Indicator

2.224 in (56.5 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra Fast

V301019

Mersen S A

Electric Fuse

Panel Mount

1.25 KV

160 A

Threaded

2.57 kJ

200 kA

Bulk

2.913 in (74 mm)

1.567 in (39.8 mm)

AR

70

Indicator

1.831 in (46.5 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra Fast

PC72UD13C500D1A

Mersen S A

Electric Fuse

Inline/Holder

1.25 KV

500 A

Tab/Blade

57.1 kJ

126 kA

Bulk

5.252 in (133.4 mm)

2.323 in (59 mm)

AR

Indicator

2.795 x 2.362 x 2.579 in (71 x 60 x 65.5 mm)

2.559 in (65 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra Fast

V300559

Mersen S A

Electric Fuse

Inline/Holder

1.25 KV

500 A

Tab/Blade

57.1 kJ

126 kA

Bulk

5.252 in (133.4 mm)

2.323 in (59 mm)

AR

Indicator

2.559 in (65 mm)

CCC; CE; CSA; CUL; EAC; IEC; UL; VDE

Ultra 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.