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. 182-4130
BrandRS PRO
$4.694
Each (In a Pack of 5)
units
1.6A 5 x 20mm M 500V ac - - Ceramic - - - -
RS Stock No. 182-3902
BrandRS PRO
$9,423.26
1 Box of 1000
Box(es)
25A 5 x 20mm F - - - Ceramic - - - -
RS Stock No. 177-8098
BrandRS PRO
$2.592
Each (In a Pack of 5)
units
6.3A 5 x 20mm T 500V ac - - Ceramic - - - UDE
RS Stock No. 177-8053
BrandRS PRO
$0.71
Each (In a Box of 500)
units
15A 6.35 x 31.75mm T 250V ac - - Ceramic - - - ADA
RS Stock No. 721-1588
BrandRS PRO
$1.257
Each (In a Pack of 10)
units
1.6A 6.3 x 32mm F 500V ac - - Ceramic - - - -
RS Stock No. 174-8014
BrandRS PRO
$4.596
Each (In a Box of 500)
units
3.15A 6.3 x 32mm FF 500V ac - - Ceramic - - - ABB
RS Stock No. 177-8099
BrandRS PRO
$2.592
Each (In a Pack of 5)
units
10A 5 x 20mm T 500V ac - - Ceramic - - - UDE
RS Stock No. 188-4659
BrandRS PRO
$19.70
Each
units
63A 14.6 x 38.5mm - 600V 38.5mm 14.6mm Ceramic - - - -
RS Stock No. 182-3887
BrandRS PRO
$2,604.42
1 Box of 1000
Box(es)
2.5A 5 x 20mm M 500V ac - - Ceramic - - - -
RS Stock No. 174-8021
BrandRS PRO
$6.326
Each (In a Box of 500)
units
30A 6.3 x 32mm FF 500V ac - - Ceramic - - - ABB
RS Stock No. 177-8026
BrandRS PRO
$0.518
Each (In a Box of 500)
units
1A 6.35 x 31.75mm T 250V ac - - Glass - - - ADL
RS Stock No. 611-0210
BrandRS PRO
$1.769
Each (In a Pack of 10)
units
250mA 6.3 x 32mm T 250V ac - - Glass - - - -
RS Stock No. 177-8048
BrandRS PRO
$185.03
1 Box of 1000
Box(es)
160A 5 x 20mm F 250V ac - - Ceramic - - - UBM
RS Stock No. 177-8131
BrandRS PRO
$0.235
Each (In a Pack of 50)
units
3A 5 x 20mm F 250V ac - - Glass - - - GFE
RS Stock No. 177-8064
BrandRS PRO
$191.36
1 Box of 1000
Box(es)
8A 5 x 20mm F 250V ac - - Glass - - - UFE
New
RS Stock No. 188-4482
BrandRS PRO
$13,800.60
1 Box of 1000
Box(es)
15A 10 x 38mm - 600V 38mm 10mm Ceramic - - IEC60269-6 -
RS Stock No. 182-4028
BrandRS PRO
$7.85
Each (In a Pack of 5)
units
8A 5 x 20mm F 420V ac - - Ceramic - - - -
RS Stock No. 177-8017
BrandRS PRO
$170.81
1 Box of 1000
Box(es)
500mA 5 x 20mm F 250V ac - - Glass - - - GFE
RS Stock No. 177-8109
BrandRS PRO
$0.342
Each (In a Pack of 50)
units
2.5A 6.35 x 31.75mm F 250V ac - - Glass - - - AFE
RS Stock No. 174-8015
BrandRS PRO
$4.596
Each (In a Box of 500)
units
6.3A 6.3 x 32mm FF 500V ac - - Ceramic - - - ABB
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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 ...