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. 293-8266
Mfr. Part No.0 123 02
BrandLegrand
MYR6.242
Each (In a Pack of 10)
units
2A 8.5 x 31.5mm F 400V ac - - Ceramic gG - - 0 123
RS Stock No. 293-8171
Mfr. Part No.0 123 04
BrandLegrand
MYR7.092
Each (In a Pack of 10)
units
4A 8.5 x 31.5mm F 400V ac - - Ceramic gG - - 0 123
RS Stock No. 293-8193
Mfr. Part No.0 123 10
BrandLegrand
MYR7.24
Each (In a Pack of 10)
units
10A 8.5 x 31.5mm F 400V ac - - Ceramic gG - - 0 123
RS Stock No. 293-8187
Mfr. Part No.0 123 06
BrandLegrand
MYR6.807
Each (In a Pack of 10)
units
6A 8.5 x 31.5mm F 400V ac - - Ceramic gG - - 0 123
RS Stock No. 293-8092
Mfr. Part No.0 113 02
BrandLegrand
MYR6.045
Each (In a Pack of 10)
units
2A 8.5 x 23mm F 230V ac - - Ceramic - - - 0 113
RS Stock No. 293-8115
Mfr. Part No.0 113 06
BrandLegrand
MYR5.063
Each (In a Pack of 10)
units
6A 8.5 x 23mm F 230V ac - - Ceramic - - - 0 113
RS Stock No. 167-4337
Mfr. Part No.0 114 10
BrandLegrand
MYR8.491
Each (In a Pack of 10)
units
10A 8.5 x 23mm F 230V ac - - Ceramic - - - 0 114
RS Stock No. 293-8137
Mfr. Part No.0 116 10
BrandLegrand
MYR6.123
Each (In a Pack of 10)
units
10A 10 x 25mm - 230V ac - - Ceramic - - - 0 116
RS Stock No. 293-8121
Mfr. Part No.0 113 10
BrandLegrand
MYR5.49
Each (In a Pack of 10)
units
10A 8.5 x 23mm F 230V ac - - Ceramic - - - 0 113
RS Stock No. 293-8250
Mfr. Part No.0 133 32
BrandLegrand
MYR6.915
Each (In a Pack of 10)
units
32A 10 x 38mm F 400V ac - - Ceramic - - - 0 133
RS Stock No. 167-4371
Mfr. Part No.0 127 25
BrandLegrand
MYR12.328
Each (In a Pack of 10)
units
25A 10.3 x 22.2mm F 400V ac - - Ceramic - - - 0 127
RS Stock No. 293-8165
Mfr. Part No.0 123 01
BrandLegrand
MYR6.926
Each (In a Pack of 10)
units
1A 8.5 x 31.5mm F 400V ac - - Ceramic gG - - 0 123
RS Stock No. 293-8109
Mfr. Part No.0 113 04
BrandLegrand
MYR5.105
Each (In a Pack of 10)
units
4A 8.5 x 23mm F 230V ac - - Ceramic - - - 0 113
RS Stock No. 167-4387
Mfr. Part No.0 134 32
BrandLegrand
MYR12.876
Each (In a Pack of 10)
units
32A 10 x 38mm F 400V ac - - Ceramic - - - 0 134
RS Stock No. 180-6105
Mfr. Part No.0 102 20
BrandLegrand
MYR5.953
Each (In a Box of 10)
units
2A 5 x 20mm F 250V ac - - Ceramic - - - 0 102
RS Stock No. 180-6103
Mfr. Part No.0 102 05
BrandLegrand
MYR5.953
Each (In a Box of 10)
units
500mA 5 x 20mm F 250V ac - - Ceramic - - - 0 102
RS Stock No. 293-8244
Mfr. Part No.0 126 25
BrandLegrand
MYR9.336
Each (In a Pack of 10)
units
25A 10.3 x 22.2mm F 400V ac - - Ceramic - - - 0 126
RS Stock No. 180-6108
Mfr. Part No.0 130 04
BrandLegrand
MYR7.943
Each (In a Box of 10)
units
4A 10 x 38mm - 500V ac - - Ceramic aM - - 0 130
RS Stock No. 180-6114
Mfr. Part No.0 133 02
BrandLegrand
MYR7.89
Each (In a Box of 10)
units
2A 10 x 38mm - 500V ac - - Ceramic gG - - 0 133
RS Stock No. 167-4359
Mfr. Part No.0 117 16
BrandLegrand
MYR10.496
Each (In a Pack of 10)
units
16A 10 x 25mm - 230V ac - - Ceramic - - - 0 117