Cartridge Fuses

What are 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 Diameter Fuse Size Fuse Speed Overall Dimensions Voltage Rating Overall Length Body Material High Rupture Capacity Application Category Breaking Capacity at Maximum Voltage Rating UL Class Includes Indicator Size Designation
RS Stock No. 167-7314
Mfr. Part No.7040.3120
BrandSchurter
€8.464
Each (In a Pack of 5)
units
2A 5mm 5 x 20mm TT - 125V ac 20mm Glass - - 100 A - - -
RS Stock No. 173-9735
Mfr. Part No.7040.3120
BrandSchurter
€7.695
Each (In a Box of 10)
units
2A 5mm 5 x 20mm TT - 125V ac 20mm Glass - - 100 A - - -
RS Stock No. 865-7629
Mfr. Part No.0034.3413
BrandSchurter
€1.018
Each (In a Pack of 10)
units
400mA 6.35mm 6.3 x 32mm T - 250V ac 31.8mm Glass - - - - - Miniature
RS Stock No. 777-7505
Mfr. Part No.0034.3124
BrandSchurter
€0.408
Each (In a Pack of 10)
units
5A 5mm - T 5 x 20mm - 20mm Glass - - 50 A @ 250 V ac - - -
RS Stock No. 777-7498
Mfr. Part No.0034.3120
BrandSchurter
€0.408
Each (In a Pack of 10)
units
2A 5mm - T 5 x 20mm - 20mm Glass - - 35 A @ 250 V ac - - -
RS Stock No. 865-7386
Mfr. Part No.0034.2519
BrandSchurter
€1.248
Each (In a Pack of 5)
units
2A 5.2mm 5 x 20mm M - 125 V dc, 250 V ac 20mm Ceramic - - 1000 A @ 250 V ac/125 V dc - - Miniature
RS Stock No. 865-7487
Mfr. Part No.0034.3117.G
BrandSchurter
€0.224
Each (In a Pack of 1000)
units
1A 5.2mm 5 x 20mm T - 250V ac 20mm Glass - - - UL 248-14 - Miniature
RS Stock No. 167-7702
Mfr. Part No.0034.1516
BrandSchurter
€0.345
Each (In a Pack of 10)
units
1A 5mm 5 x 20mm F - 250V ac 20mm Glass - - 35 A - - -
RS Stock No. 777-7473
Mfr. Part No.0034.3117
BrandSchurter
€0.408
Each (In a Pack of 10)
units
1A 5mm - T 5 x 20mm - 20mm Glass - - 35 A @ 250 V ac - - -
RS Stock No. 789-7842
Mfr. Part No.0034.1526
BrandSchurter
€0.369
Each (In a Bag of 10)
units
10A 5mm 5 x 20mm F - 250V ac 20mm Glass - - 100 A @ 250 V ac - - -
RS Stock No. 866-3236
Mfr. Part No.0001.2509.PT
BrandSchurter
€0.417
Each (In a Pack of 1000)
units
3.15A 5mm 5 x 20mm T - 250 V ac, 300 V dc 20mm Ceramic Yes - - UL 248-14 - Miniature
RS Stock No. 866-3230
Mfr. Part No.0001.2509.TR
BrandSchurter
€0.483
Each (In a Pack of 1000)
units
3.15A 5mm 5 x 20mm T - 250 V ac, 300 V dc 20mm Ceramic Yes - - UL 248-14 - Miniature
RS Stock No. 789-7794
Mfr. Part No.0001.2509
BrandSchurter
€0.573
Each (In a Bag of 10)
units
3.15A 5mm 5 x 20mm T - 250 V ac, 300 V dc 20mm Ceramic Yes - 1500 A @ 250 V ac - - -
RS Stock No. 866-3110
Mfr. Part No.0001.1015.PT
BrandSchurter
€0.433
Each (In a Pack of 1000)
units
12.5A 5mm 5 x 20mm F - 250V ac 20mm Ceramic Yes - - UL 248-14 - Miniature
RS Stock No. 866-3101
Mfr. Part No.0001.1015
BrandSchurter
€0.321
Each (In a Pack of 10)
units
12.5A 5mm 5 x 20mm F - 250V ac 20mm Ceramic Yes - - UL 248-14 - Miniature
RS Stock No. 173-8060
Mfr. Part No.8020.5018.G
BrandSchurter
€0.369
Each (In a Box of 1000)
units
5A 6.3mm 6.3 x 32mm T - 500V ac 32mm Ceramic - - - - - -
RS Stock No. 173-7911
Mfr. Part No.8020.0604.G
BrandSchurter
€0.459
Each (In a Box of 1000)
units
15A 6.3mm 6.3 x 32mm T - 250V ac 32mm Ceramic - - 500 A - - -
RS Stock No. 866-3107
Mfr. Part No.0001.1014.PT
BrandSchurter
€0.433
Each (In a Pack of 1000)
units
10A 5mm 5 x 20mm F - 250V ac 20mm Ceramic Yes - - UL 248-14 - Miniature
RS Stock No. 703-2663
Mfr. Part No.8020.0605.G
BrandSchurter
€1.045
Each (In a Pack of 10)
units
20A 6.3mm 6.3 x 32mm T - 250V ac 32mm Ceramic - - 500 A - - -
RS Stock No. 866-3104
Mfr. Part No.0001.1014
BrandSchurter
€0.303
Each (In a Pack of 10)
units
10A 5mm 5 x 20mm F - 250V ac 20mm Ceramic Yes - - UL 248-14 - Miniature