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 Diameter Fuse Size Fuse Speed Overall Dimensions Voltage Rating Overall Length Body Material High Rupture Capacity Application Category Breaking Capacity at Maximum Voltage Rating UL Class Includes Indicator Size Designation
RS stock no. 898-1055
Mfr. Part No.100C22X58GI
BrandAltech
R 90.95
Each
units
100 A - 22.2 x 58mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 898-3360
Mfr. Part No.16C10X38GI
BrandAltech
R 36.264
Each (In a Pack of 10)
units
16 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 899-3200
Mfr. Part No.2C8X32GI
BrandAltech
R 38.758
Each (In a Pack of 10)
units
2 A - 8 x 32mm T - 400 V ac - Ceramic - GL - - - -
RS stock no. 900-3121
Mfr. Part No.80C22X58GI
BrandAltech
R 112.96
Each
units
80 A - 22.2 x 58mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 899-3938
Mfr. Part No.32C10X38GI
BrandAltech
R 38.758
Each (In a Pack of 10)
units
32 A - 10 x 38mm T - 400 V ac - Ceramic - GL - - - -
RS stock no. 899-3014
Mfr. Part No.2C10X38GI
BrandAltech
R 37.68
Each (In a Pack of 10)
units
2 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 898-1266
Mfr. Part No.10C10X38GI
BrandAltech
R 23.466
Each (In a Pack of 10)
units
10 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 899-9747
Mfr. Part No.50C14X51GI
BrandAltech
R 58.97
Each
units
50 A - 14 x 51mm T - 400 V ac - Ceramic - GL - - - -
RS stock no. 899-9756
Mfr. Part No.50C14X51SC
BrandAltech
R 407.678
Each (In a Pack of 10)
units
50 A - 14 x 51mm FF - 690 V ac - Ceramic - GR - - - -
RS stock no. 899-0960
Mfr. Part No.2621009
BrandAltech
R 34.224
Each (In a Pack of 10)
units
16 A - 10 x 38mm F - 500 V ac - Ceramic - AM - - - -
RS stock no. 898-3051
Mfr. Part No.12C10X38GI
BrandAltech
R 36.264
Each (In a Pack of 10)
units
12 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 899-3931
Mfr. Part No.32C14X51GI
BrandAltech
R 54.28
Each
units
32 A - 14 x 51mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 900-1510
Mfr. Part No.63C22X58GI
BrandAltech
R 97.46
Each
units
63 A - 22.2 x 58mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 898-1269
Mfr. Part No.10C14X51GI
BrandAltech
R 40.548
Each (In a Pack of 10)
units
10 A - 14 x 51mm T - 660 V ac - Ceramic - GL - - - -
RS stock no. 900-3459
Mfr. Part No.8C14X51GI
BrandAltech
R 54.396
Each (In a Pack of 10)
units
8 A - 14 x 51mm T - 660 V ac - Ceramic - GL - - - -
RS stock no. 900-3455
Mfr. Part No.8C10X38GI
BrandAltech
R 36.264
Each (In a Pack of 10)
units
8 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS stock no. 898-0935
Mfr. Part No.002625109CH
BrandAltech
R 233.15
Each
units
25 A - 10 x 38mm - - 900 V dc - Ceramic - GPV - - - -
RS stock no. 898-0957
Mfr. Part No.002625205CH
BrandAltech
R 537.67
Each
units
12 A - 10 x 85mm - - 1.5 kV dc - Ceramic - GPV - - - -
RS stock no. 900-1563
Mfr. Part No.6C8X32GI
BrandAltech
R 36.264
Each (In a Pack of 10)
units
6 A - 8 x 32mm T - 400 V ac - Ceramic - GL - - - -
RS stock no. 899-9393
Mfr. Part No.40C22X58GI
BrandAltech
R 52.36
Each
units
40 A - 22.2 x 58mm T - 690 V ac - Ceramic - GL - - - -