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.


...
Read more Read less

Filters

Viewing 1 - 20 of 510 products
Results per page
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. 789-7842
Mfr. Part No.0034.1526
BrandSchurter
£0.284
Each (In a Bag of 10)
Units
10A 5 x 20mm F - 250V ac - Glass - - - - FSF 5x20
RS Stock No. 865-7487
Mfr. Part No.0034.3117.G
BrandSchurter
£164.04
1 Pack of 1000
Pack(s)
1A 5 x 20mm T - 250V ac - Glass - - - - FST
RS Stock No. 777-7473
Mfr. Part No.0034.3117
BrandSchurter
£0.314
Each (In a Pack of 10)
Units
1A 5 x 20mm T - 250V ac - Glass - - - - FST 5x20
RS Stock No. 167-8092
Mfr. Part No.0034.3122
BrandSchurter
£0.314
Each (In a Pack of 10)
Units
3.15A 5 x 20mm T - 250V ac - Glass - - - - FST 5x20
RS Stock No. 866-3236
Mfr. Part No.0001.2509.PT
BrandSchurter
£316.51
1 Pack of 1000
Pack(s)
3.15A 5 x 20mm T - 250 V ac, 300 V dc - Ceramic - - - - SPT 5X20
RS Stock No. 789-7794
Mfr. Part No.0001.2509
BrandSchurter
£0.441
Each (In a Bag of 10)
Units
3.15A 5 x 20mm T - 250 V ac, 300 V dc - Ceramic - - - - SPT 5X20
RS Stock No. 866-3230
Mfr. Part No.0001.2509.TR
BrandSchurter
£360.90
1 Pack of 1000
Pack(s)
3.15A 5 x 20mm T - 250 V ac, 300 V dc - Ceramic - - - - SPT 5X20
RS Stock No. 777-7498
Mfr. Part No.0034.3120
BrandSchurter
£0.314
Each (In a Pack of 10)
Units
2A 5 x 20mm T - 250V ac - Glass - - - - FST 5x20
RS Stock No. 167-7702
Mfr. Part No.0034.1516
BrandSchurter
£0.265
Each (In a Pack of 10)
Units
1A 5 x 20mm F - 250V ac - Glass - - - - FSF 5x20
RS Stock No. 789-7788
Mfr. Part No.0001.2514
BrandSchurter
£0.441
Each (In a Bag of 10)
Units
10A 5 x 20mm T - 150 V dc, 250 V ac - Ceramic - - - - SPT 5X20
RS Stock No. 866-3264
Mfr. Part No.0001.2514.PT
BrandSchurter
£325.82
1 Pack of 1000
Pack(s)
10A 5 x 20mm T - 150 V dc, 250 V ac - Ceramic - - - - SPT 5X20
RS Stock No. 866-3224
Mfr. Part No.0001.2507.PT
BrandSchurter
£316.51
1 Pack of 1000
Pack(s)
2A 5 x 20mm T - 250 V ac, 300 V dc - Ceramic - - - - SPT 5X20
RS Stock No. 789-7781
Mfr. Part No.0001.2507
BrandSchurter
£0.441
Each (In a Bag of 10)
Units
2A 5 x 20mm T - 250 V ac, 300 V dc - Ceramic - - - - SPT 5X20
RS Stock No. 866-3270
Mfr. Part No.0001.2516.PT
BrandSchurter
£316.51
1 Pack of 1000
Pack(s)
16A 5 x 20mm T - 125 V dc, 250 V ac - Ceramic - - - - SPT 5X20
RS Stock No. 866-3274
Mfr. Part No.0001.2516.TR
BrandSchurter
£360.90
1 Pack of 1000
Pack(s)
16A 5 x 20mm T - 125 V dc, 250 V ac - Ceramic - - - - SPT 5X20
RS Stock No. 789-7808
Mfr. Part No.0001.2516
BrandSchurter
£0.441
Each (In a Bag of 10)
Units
16A 5 x 20mm T - 125 V dc, 250 V ac - Ceramic - - - - SPT 5X20
RS Stock No. 777-7505
Mfr. Part No.0034.3124
BrandSchurter
£0.314
Each (In a Pack of 10)
Units
5A 5 x 20mm T - 250V ac - Glass - - - - FST 5x20
RS Stock No. 777-7467
Mfr. Part No.0034.1506
BrandSchurter
£1.147
Each (In a Pack of 10)
Units
100mA 5 x 20mm F - 250V ac - Glass - - - - FSF 5x20
RS Stock No. 167-6153
Mfr. Part No.0034.3127
BrandSchurter
£0.314
Each (In a Pack of 10)
Units
10A 5 x 20mm T - 250V ac - Glass - - - - FST 5x20
RS Stock No. 789-7810
Mfr. Part No.0001.2515
BrandSchurter
£0.441
Each (In a Bag of 10)
Units
12.5A 5 x 20mm T - 125 V dc, 250 V ac - Ceramic - - - - SPT 5X20