Cartridge Fuses

Cartridge fuses are a low cost electrical safety device that is used to protect electrical circuits and appliances. They are cylindrical in shape and have a contact point at each end. Cartridge fuses are typically constructed from ceramic, glass or porcelain.



How do cartridge fuses work?


Cartridge fuses contain a piece of wire that melts when too much current flows through the circuit. When the wire melts, it breaks the circuit which prevents any damage. This is often referred to as burning out or blowing out. Put simply, when a fuse blows, the circuit is broken. Once a fuse has blown, it will need replacing in order to make the circuit complete again, and allow the flow of current.



Different types of cartridge fuse


Most cartridge fuses are general purpose and feature no time delay, however, some heavy duty options will have a time delay features that enables motors to start up.



Why use cartridge fuses?


Cartridge fuses are a relatively cheap way of protecting electrical equipment from short circuits and overcurrent. They are incredibly safe as they do not produce flames, arcs or gas when they burn out and break the circuit. Their speed of operation is also incredibly quick, as they react almost instantly.



What cartridge fuse should you choose?


Cartridge fuses are available in a range of standard current rating variants. When choosing the correct fuse for your application, you should choose a fuse with a nominally higher current rating than the device that it is being used in. This means that if there is a slight, harmless power increase, the fuse will not blow.


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Description Price Current Rating Fuse Size Fuse Speed Voltage Rating Overall Length Diameter Body Material Application Category UL Class Fuse Standard Series
RS Stock No. 888-7640
Mfr. Part No.FUSE01G4B
BrandOpto 22
MYR53.586
Each (In a Pack of 10)
units
1A - - - - - - - - - G4
RS Stock No. 889-0808
Mfr. Part No.SNAP-FUSE1AB
BrandOpto 22
MYR13.944
Each (In a Pack of 25)
units
1A - - - - - - - - - -
RS Stock No. 889-0823
Mfr. Part No.SNAP-FUSE7.5AB
BrandOpto 22
MYR13.565
Each (In a Pack of 25)
units
7.5A - - - - - - - - - -
RS Stock No. 889-0804
Mfr. Part No.SNAP-FUSE10AB
BrandOpto 22
MYR9.402
Each (In a Pack of 25)
units
10A - - - - - - - - - -
RS Stock No. 889-0810
Mfr. Part No.SNAP-FUSE2AB
BrandOpto 22
MYR235.06
Each
units
2A - - - - - - - - - -
RS Stock No. 888-7653
Mfr. Part No.FUSE02B
BrandOpto 22
MYR43.971
Each (In a Pack of 10)
units
2A - - - - - - - - - -
RS Stock No. 888-7647
Mfr. Part No.FUSE01B
BrandOpto 22
MYR43.971
Each (In a Pack of 10)
units
1A - - - - - - - - - -
RS Stock No. 888-7669
Mfr. Part No.FUSEG4B
BrandOpto 22
MYR40.65
Each (In a Pack of 10)
units
4A - F 250V ac - - - - - - -
RS Stock No. 888-7662
Mfr. Part No.G4 FUSE CLIP
BrandOpto 22
MYR9.098
Each (In a Pack of 10)
units
- - - - - - - - - - G4
RS Stock No. 889-0817
Mfr. Part No.SNAP-FUSE1AC
BrandOpto 22
MYR12.738
Each (In a Pack of 25)
units
1A - - - - - - - - - -
RS Stock No. 888-7638
Mfr. Part No.FUSE.125B
BrandOpto 22
MYR43.971
Each (In a Pack of 10)
units
125mA 29.36 x 46.63mm - - - - - - - - -
RS Stock No. 888-7656
Mfr. Part No.FUSE05B
BrandOpto 22
MYR43.971
Each (In a Pack of 10)
units
5A - - - - - - - - - -