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. 563-526
BrandRS PRO
$0.243
Each (In a Pack of 10)
units
5 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 563-396
BrandRS PRO
$0.273
Each (In a Pack of 10)
units
6.3 A 5 x 20mm T 250 V ac - - Ceramic - - - -
RS Stock No. 209-9311
BrandRS PRO
$2.384
Each (In a Pack of 10)
units
16 A 6.3 x 32mm T 500 V ac - - Ceramic - UL 248-13 - -
RS Stock No. 169-9364
Mfr. Part No.TDC10-2A
$462.53
1 Bag of 1000
Bag(s)
2 A 6.3 x 32mm F 250 V ac - - Glass - - - TDC10
RS Stock No. 412-273
Mfr. Part No.TDC10-2A
$1.301
Each (In a Pack of 10)
units
2 A 6.3 x 32mm F 250 V ac - - Glass - - - TDC10
RS Stock No. 668-5963
BrandRS PRO
$0.243
Each (In a Pack of 10)
units
3 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 668-5972
BrandRS PRO
$0.232
Each (In a Pack of 10)
units
4 A 5 x 20mm F 250 V ac - - Glass - - - -
RS Stock No. 414-055
BrandRS PRO
$1.061
Each (In a Pack of 10)
units
5 A 6.3 x 32mm T 500 V ac - - Ceramic - UL 248-13 - -
RS Stock No. 188-6984
Mfr. Part No.S218194
BrandMersen
$2.51
Each (In a Pack of 10)
units
10 A 10 x 38mm - 500 V ac - - Ceramic GG - - -
RS Stock No. 777-7473
Mfr. Part No.0034.3117
BrandSchurter
$0.765
Each (In a Pack of 10)
units
1 A 5 x 20mm T 250 V ac - - Glass - - - FST 5x20
RS Stock No. 412-986
Mfr. Part No.TDC180-1A
$0.854
Each (In a Pack of 10)
units
1 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 736-1422
Mfr. Part No.50-199-06/10A
BrandSIBA
$23.94
Each
units
10 A 10 x 38mm - 1 kV ac - - Ceramic GR UL 248-13 - URZ
RS Stock No. 541-2975
Mfr. Part No.02133.15MXP
BrandLittelfuse
$0.744
Each (In a Pack of 10)
units
3.15 A 5 x 20mm T 250 V ac - - Glass - - - 213
RS Stock No. 188-6962
Mfr. Part No.X213598
BrandMersen
$5.759
Each (In a Pack of 10)
units
4 A 10 x 38mm - 500 V ac - - Ceramic GG - - -
RS Stock No. 169-9404
Mfr. Part No.S500-1-R
$349.65
1 Bag of 1000
Bag(s)
1 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 169-9407
Mfr. Part No.S500-500-R
$430.50
1 Bag of 1000
Bag(s)
500 mA 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 188-6978
Mfr. Part No.K215128
BrandMersen
$2.247
Each (In a Pack of 10)
units
6 A 10 x 38mm - 500 V ac - - Ceramic GG - - -
RS Stock No. 537-1240
Mfr. Part No.S500-500-R
$0.447
Each (In a Pack of 10)
units
500 mA 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 541-2953
Mfr. Part No.0213002.MXP
BrandLittelfuse
$0.995
Each (In a Pack of 10)
units
2 A 5 x 20mm T 250 V ac - - Glass - - - 213
RS Stock No. 537-1212
Mfr. Part No.S500-1-R
$0.361
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac - - Glass - - - S500