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. 459-7918
Mfr. Part No.DMM-B-44/100
kr 57,408
Each (In a Pack of 5)
Units
440 mA - 10 x 35mm F - 1 kV ac, 1 kV dc - Melamine - - - - - -
RS Stock No. 459-7924
Mfr. Part No.DMM-B-11A
kr 62,232
Each (In a Pack of 5)
Units
11 A - 10 x 38mm F - 1 kV ac - Melamine - - - - - -
RS Stock No. 489-4405
Mfr. Part No.C10G2
kr 6,859
Each (In a Pack of 10)
Units
- - - - - - - - - - - - - -
RS Stock No. 188-7022
Mfr. Part No.H218714
BrandMersen
kr 12,49
Each (In a Pack of 10)
Units
2 A - 10 x 38mm - - 500 V ac - Ceramic - AM - - - -
RS Stock No. 188-6956
Mfr. Part No.D213098
BrandMersen
kr 9,152
Each (In a Pack of 10)
Units
2 A - 10 x 38mm - - 500 V ac - Ceramic - GG - - - -
RS Stock No. 783-3309
Mfr. Part No.70-007-65/2A
BrandSIBA
kr 3,029
Each (In a Pack of 10)
Units
2 A - 5 x 20mm T - 250 V ac - Ceramic - - - - - -
RS Stock No. 230-3519
Mfr. Part No.Y219234
BrandMersen
kr 16,351
Each (In a Pack of 10)
Units
2 A - 14 x 51mm - - 690 V ac - Ceramic - GG - - - -
RS Stock No. 188-7016
Mfr. Part No.F217171
BrandMersen
kr 11,127
Each (In a Pack of 10)
Units
1 A - 10 x 38mm - - 500 V ac - Ceramic - AM - - - -
RS Stock No. 188-6827
Mfr. Part No.Z084317
BrandMersen
kr 35,363
Each (In a Pack of 10)
Units
16 A - 6.3 x 32mm F - 250 V ac - Ceramic - - - - - -
RS Stock No. 712-4784
Mfr. Part No.0090.0030
BrandSchurter
kr 194,12
Each
Units
30 A - 10 x 38mm F - 1 kV dc - Melamine - GPV - - - -
RS Stock No. 173-7971
Mfr. Part No.0090.0030
BrandSchurter
kr 155,253
Each (In a Box of 10)
Units
30 A - 10 x 38mm F - 1 kV dc - Melamine - - - - - -
RS Stock No. 736-1422
Mfr. Part No.50-199-06/10A
BrandSIBA
kr 127,22
Each
Units
10 A - 10 x 38mm - - 1 kV ac - Ceramic - GR - UL 248-13 - -
RS Stock No. 736-1416
Mfr. Part No.70-172-40/0.5A
BrandSIBA
kr 48,67
Each
Units
500 mA - 6.3 x 32mm FF - 1 kV ac, 1 kV dc - Ceramic - - - - - -
RS Stock No. 563-431
BrandRS PRO
kr 1,426
Each (In a Pack of 10)
Units
2 A - 5 x 20mm F - 250 V ac - Glass - - - - - -
RS Stock No. 169-9387
Mfr. Part No.S500-8-R
kr 1 246,25
1 Bag of 1000
Bag(s)
8 A - 5 x 20mm F - 250 V ac - Glass - - - - - -
RS Stock No. 712-4780
Mfr. Part No.0090.0025
BrandSchurter
kr 194,12
Each
Units
25 A - 10 x 38mm F - 1 kV dc - Melamine - GPV - - - -
RS Stock No. 736-1412
Mfr. Part No.70-172-40/0.315A
BrandSIBA
kr 48,67
Each
Units
315 mA - 6.3 x 32mm FF - 1 kV ac, 1 kV dc - Ceramic - - - - - -
RS Stock No. 537-0972
Mfr. Part No.S500-8-R
kr 1,555
Each (In a Pack of 10)
Units
8 A - 5 x 20mm F - 250 V ac - Glass - - - - - -
RS Stock No. 898-3360
Mfr. Part No.16C10X38GI
BrandAltech
kr 14,835
Each (In a Pack of 10)
Units
16 A - 10 x 38mm T - 500 V ac - Ceramic - GL - - - -
RS Stock No. 173-7970
Mfr. Part No.0090.0025
BrandSchurter
kr 155,253
Each (In a Box of 10)
Units
25 A - 10 x 38mm F - 1 kV dc - Melamine - - - - - -
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