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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Viewing 61 - 80 of 3655 products
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Description Price Current Rating Fuse Size Fuse Speed Diameter Voltage Rating Overall Length Body Material Application Category UL Class Fuse Standard Priced to Clear Series
RS Stock No. 209-9276
BrandRS PRO
£0.62
Each (In a Pack of 10)
Units
500mA 6.3 x 32mm F - 500V ac - Ceramic - - - - -
RS Stock No. 563-643
BrandRS PRO
£0.12
Each (In a Pack of 10)
Units
10A 5 x 20mm F - 250V ac - Glass - - - - -
RS Stock No. 414-027
BrandRS PRO
£0.662
Each (In a Pack of 10)
Units
1A 6.3 x 32mm T - 500V ac - Ceramic - - - - -
RS Stock No. 563-738A
BrandRS PRO
£0.175
Each (In a Pack of 100)
Units
250mA 5 x 20mm T 5mm 250V ac 20mm Glass - - - - -
RS Stock No. 563-738
BrandRS PRO
£0.19
Each (In a Pack of 10)
Units
250mA 5 x 20mm T - 250V ac - Glass - - - - -
RS Stock No. 668-6057
BrandRS PRO
£0.155
Each (In a Pack of 10)
Units
10A 6.3 x 32mm F - 250V ac - Glass - - - - -
RS Stock No. 563-340
BrandRS PRO
£0.115
Each (In a Pack of 10)
Units
5A 5 x 20mm F - 250V ac - Ceramic - - - - -
RS Stock No. 563-340A
BrandRS PRO
£0.147
Each (In a Pack of 100)
Units
5A 5 x 20mm F 5mm 250V ac 20mm Ceramic - - - - -
RS Stock No. 414-049
BrandRS PRO
£0.662
Each (In a Pack of 10)
Units
3.15A 6.3 x 32mm T - 500V ac - Ceramic - - - - -
RS Stock No. 667-0330
BrandRS PRO
£6.015
Each (In a Box of 10)
Units
60A 30 x 57mm - - 415V ac - - - - - - -
RS Stock No. 169-9439
BrandRS PRO
£340.16
1 Bag of 1000
Bag(s)
500mA 5 x 20mm T - 250V ac - Ceramic - - - - S505
RS Stock No. 537-1593
BrandRS PRO
£0.445
Each (In a Pack of 10)
Units
500mA 5 x 20mm T - 250V ac - Ceramic - - - - S505
RS Stock No. 413-204A
BrandRS PRO
£0.50
Each (In a Pack of 100)
Units
2A 6.3 x 32mm F 6.35mm 500V ac 32mm Ceramic - - - - -
RS Stock No. 413-226
BrandRS PRO
£0.62
Each (In a Pack of 10)
Units
5A 6.3 x 32mm F - 500V ac - Ceramic - - - - -
RS Stock No. 413-204
BrandRS PRO
£0.62
Each (In a Pack of 10)
Units
2A 6.3 x 32mm F - 500V ac - Ceramic - - - - -
RS Stock No. 413-226A
BrandRS PRO
£0.50
Each (In a Pack of 100)
Units
5A 6.3 x 32mm F 6.35mm 500V ac 32mm Ceramic - - - - -
RS Stock No. 668-6023
BrandRS PRO
£0.155
Each (In a Pack of 10)
Units
1A 6.3 x 32mm F - 250V ac - Glass - - - - -
RS Stock No. 563-441A
BrandRS PRO
£0.147
Each (In a Pack of 100)
Units
3.15A 5 x 20mm F 5mm 250V ac 20mm Ceramic - - - - -
RS Stock No. 563-441
BrandRS PRO
£0.115
Each (In a Pack of 10)
Units
3.15A 5 x 20mm F - 250V ac - Ceramic - - - - -
RS Stock No. 420-218
BrandRS PRO
£1.719
Each (In a Pack of 10)
Units
10A 6.3 x 32mm FF - 500V ac - Ceramic - - - - -
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