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. 459-7918
Mfr. Part No.DMM-B-44-100-R
SGD24.328
Each (In a Pack of 5)
units
440 mA 10 x 35mm F 1 kV ac, 1 kV dc - - Melamine - - - DMM-B
RS Stock No. 412-605
Mfr. Part No.TDC180-13A
SGD0.774
Each (In a Pack of 10)
units
13 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 412-560
Mfr. Part No.TDC180-3A
SGD0.595
Each (In a Pack of 10)
units
3 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 459-7924
Mfr. Part No.DMM-B-11A
SGD35.70
Each (In a Pack of 5)
units
11 A 10 x 38mm F 1 kV ac - - Melamine - - - DMM-B
RS Stock No. 412-576
Mfr. Part No.TDC180-5A
SGD1.957
Each (In a Pack of 10)
units
5 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 412-598
Mfr. Part No.TDC180-10A
SGD2.52
Each (In a Pack of 10)
units
10 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 852-7095
Mfr. Part No.MDL-1-10-R
SGD14.55
Each
units
100 mA 6.3 x 32mm T 250 V ac - - Glass - UL 248-14 - MDL
RS Stock No. 458-8582
Mfr. Part No.KTK-30
SGD47.812
Each (In a Pack of 5)
units
30 A 10 x 38mm F 600 V ac - - Melamine - - - KTK
RS Stock No. 537-1212
Mfr. Part No.S500-1-R
SGD0.279
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 169-9404
Mfr. Part No.S500-1-R
SGD211.05
1 Bag of 1000
Bag(s)
1 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 169-9420
Mfr. Part No.S506-1-R
SGD508.20
1 Bag of 1000
Bag(s)
1 A 5 x 20mm T 250 V ac - - Glass - - - S506
RS Stock No. 537-1379
Mfr. Part No.S506-1-R
SGD0.624
Each (In a Pack of 10)
units
1 A 5 x 20mm T 250 V ac - - Glass - - - S506
RS Stock No. 412-582
Mfr. Part No.TDC180-7A
SGD0.427
Each (In a Pack of 10)
units
7 A 6.3 x 25mm F 240 V ac - - Ceramic - - - TDC180
RS Stock No. 169-9407
Mfr. Part No.S500-500-R
SGD352.82
1 Bag of 1000
Bag(s)
500 mA 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 537-1240
Mfr. Part No.S500-500-R
SGD0.425
Each (In a Pack of 10)
units
500 mA 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 851-1438
Mfr. Part No.S500-40-R
SGD10.33
Each
units
40 mA 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 537-1177
Mfr. Part No.S500-2-R
SGD0.38
Each (In a Pack of 10)
units
2 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 169-9401
Mfr. Part No.S500-2-R
SGD344.40
1 Bag of 1000
Bag(s)
2 A 5 x 20mm F 250 V ac - - Glass - - - S500
RS Stock No. 537-1559
Mfr. Part No.S501-500-R
SGD0.947
Each (In a Pack of 10)
units
500 mA 5 x 20mm F 250 V ac - - Ceramic - - - S501
RS Stock No. 169-9436
Mfr. Part No.S501-500-R
SGD841.05
1 Bag of 1000
Bag(s)
500 mA 5 x 20mm F 250 V ac - - Ceramic - - - S501