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. 314-4844
Mfr. Part No.50-179-06/30A
BrandSIBA
TWD268.40
Each (In a Pack of 5)
units
30 A 10 x 38mm - 700 V ac - - Ceramic GR UL 248-13 - URZ
RS Stock No. 537-1155
Mfr. Part No.S500-3.15-R
TWD7.20
Each (In a Pack of 10)
units
3.15 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 563-592
BrandRS PRO
TWD10.20
Each (In a Pack of 10)
units
10 A 5 x 20mm T 250 V ac - - Ceramic - - - UDA
RS Stock No. 542-1244
Mfr. Part No.02181.25MXP
BrandLittelfuse
TWD19.90
Each (In a Pack of 10)
units
1.25 A 5 x 20mm T 250 V ac - - Glass - - - 218
RS Stock No. 851-1665
Mfr. Part No.FNQ-R-10
TWD1,625.00
Each
units
10 A 10 x 38mm T 600 V ac - - Fibre - - - FNQ-R
RS Stock No. 914-4342
Mfr. Part No.ATM3
BrandMersen
TWD245.00
Each
units
3 A 10 x 38mm F 600 V ac - - GMG - UL 248-14 - ATM
RS Stock No. 668-6023
BrandRS PRO
TWD6.40
Each (In a Pack of 10)
units
1 A 6.3 x 32mm F 250 V ac - - Glass - - - -
RS Stock No. 418-9494
Mfr. Part No.70-059-61/0.25A
BrandSIBA
TWD11.20
Each (In a Pack of 10)
units
250 mA 6.3 x 32mm T 250 V ac - - Glass - - - GZ
RS Stock No. 413-210
BrandRS PRO
TWD26.00
Each (In a Pack of 10)
units
3 A 6.3 x 32mm F 500 V ac - - Ceramic - UL 248-13 - 70-065-63
RS Stock No. 703-8370
Mfr. Part No.C10G4
TWD26.70
Each (In a Pack of 10)
units
4 A 10 x 38mm - 500 V ac - - Ceramic GG - gL - - C10G
RS Stock No. 878-1249
Mfr. Part No.0215010.VXP
BrandLittelfuse
TWD209.80
Each (In a Pack of 5)
units
10 A 5 x 20mm T 250 V ac - - Ceramic - - - 215
RS Stock No. 878-1381
Mfr. Part No.02153.15HXP
BrandLittelfuse
TWD35.10
Each (In a Pack of 50)
units
3.15 A 5 x 20mm T 250 V ac - - Ceramic - - - 215
RS Stock No. 563-637
BrandRS PRO
TWD4.90
Each (In a Pack of 10)
units
630 mA 5 x 20mm T 250 V ac - - Glass - - - -
RS Stock No. 542-1250
Mfr. Part No.021806.3MXP
BrandLittelfuse
TWD19.90
Each (In a Pack of 10)
units
6.3 A 5 x 20mm T 250 V ac - - Glass - - - 218
RS Stock No. 188-6962
Mfr. Part No.X213598
BrandMersen
TWD38.10
Each (In a Pack of 10)
units
4 A 10 x 38mm - 500 V ac - - Ceramic GG - - -
RS Stock No. 563-548
BrandRS PRO
TWD4.80
Each (In a Pack of 10)
units
1.25 A 5 x 20mm T 250 V ac - - Glass - - - -
RS Stock No. 209-9355
BrandRS PRO
TWD46.30
Each (In a Pack of 10)
units
1 A 6.3 x 32mm FF 600 V ac - - Ceramic - - - -
RS Stock No. 848-2687
Mfr. Part No.BK-ABC-15-R
TWD34.00
Each
units
15 A 6.3 x 32mm F 125 V dc, 250 V ac - - Ceramic - - - ABC
RS Stock No. 541-2953
Mfr. Part No.0213002.MXP
BrandLittelfuse
TWD21.10
Each (In a Pack of 10)
units
2 A 5 x 20mm T 250 V ac - - Glass - - - 213
RS Stock No. 726-8846
Mfr. Part No.C1014578
BrandMersen
TWD361.00
Each
units
12.5 A 10 x 38mm FF 690 V ac - - Ceramic GR - - Protistor