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. 459-7918
Mfr. Part No.DMM-B-44/100
$16.556
Each (In a Pack of 5)
units
440 mA 10 x 35mm F 1 kV ac, 1 kV dc - - Melamine - - - DMM-B
RS Stock No. 459-7924
Mfr. Part No.DMM-B-11A
$25.346
Each (In a Pack of 5)
units
11 A 10 x 38mm F 1 kV ac - - Melamine - - - DMM-B
RS Stock No. 412-605
Mfr. Part No.TDC180-13A
$1.148
Each (In a Pack of 10)
units
13 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 541-4410
Mfr. Part No.0217002.MXP
BrandLittelfuse
$0.408
Each (In a Pack of 10)
units
2 A 5 x 20mm F 250 V ac - - Glass - - - 217
RS Stock No. 541-4375
Mfr. Part No.0217001.MXP
BrandLittelfuse
$0.408
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac - - Glass - - - 217
RS Stock No. 412-560
Mfr. Part No.TDC180-3A
$0.701
Each (In a Pack of 10)
units
3 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 188-6956
Mfr. Part No.D213098
BrandMersen
$2.204
Each (In a Pack of 10)
units
2 A 10 x 38mm - 500 V ac - - Ceramic GG - - -
RS Stock No. 563-722
BrandRS PRO
$0.226
Each (In a Pack of 10)
units
2 A 5 x 20mm T 250 V ac - - Glass - - - -
RS Stock No. 412-576
Mfr. Part No.TDC180-5A
$1.74
Each (In a Pack of 10)
units
5 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 563-431
BrandRS PRO
$0.271
Each (In a Pack of 10)
units
2 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 729-6753
Mfr. Part No.2279339
BrandFluke
$12.00
Each
units
315 mA 6.3 x 32mm F 1 kV 32mm 6.35mm - - - - -
RS Stock No. 412-554
Mfr. Part No.TDC180-2A
$0.811
Each (In a Pack of 10)
units
2 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 563-380
BrandRS PRO
$0.215
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 563-592
BrandRS PRO
$0.696
Each (In a Pack of 10)
units
10 A 5 x 20mm T 250 V ac - - Ceramic - - - UDA
RS Stock No. 563-491
BrandRS PRO
$0.215
Each (In a Pack of 10)
units
3.15 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 563-643
BrandRS PRO
$0.234
Each (In a Pack of 10)
units
10 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 563-699
BrandRS PRO
$0.518
Each (In a Pack of 10)
units
3.15 A 5 x 20mm T 250 V ac - - Ceramic - - - -
RS Stock No. 314-4816
Mfr. Part No.50-179-06/16A
BrandSIBA
$17.56
Each (In a Pack of 5)
units
16 A 10 x 38mm - 700 V ac - - Ceramic GR - - URZ
RS Stock No. 563-693
BrandRS PRO
$0.658
Each (In a Pack of 10)
units
5 A 5 x 20mm T 250 V ac - - Ceramic - - - -
RS Stock No. 563-413
BrandRS PRO
$0.226
Each (In a Pack of 10)
units
2 A 5 x 20mm F 250 V ac - - Ceramic - - - -
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This glass cartridge fuse is ideal for providing ...
Description:
This glass cartridge fuse is ideal for providing protection to devices or internal circuits They are deliberately weaker components which, when too much current is drawn, will blow. Features:Glass cartridge5 x 20 mm cartridge sizeT Speed Rating Anti-surge Low Breaking ...