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. 563-693A
BrandRS PRO
€13.05
1 Pack of 100
Pack(s)
5A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 563-693
BrandRS PRO
€0.244
Each (In a Pack of 10)
units
5A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 563-425A
BrandRS PRO
€13.22
1 Pack of 100
Pack(s)
6.3A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-425
BrandRS PRO
€0.142
Each (In a Pack of 10)
units
6.3A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-609
BrandRS PRO
€0.152
Each (In a Pack of 10)
units
2A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 563-609A
BrandRS PRO
€13.05
1 Pack of 100
Pack(s)
2A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 420-230
BrandRS PRO
€1.526
Each (In a Pack of 10)
units
16A 6.3mm 6.3 x 32mm FF - 500V ac 32mm Ceramic Yes - 50 kA UL 248-13 No Miniature
RS Stock No. 563-491
BrandRS PRO
€0.135
Each (In a Pack of 10)
units
3.15A 5mm 5 x 20mm F - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-722A
BrandRS PRO
€13.22
1 Pack of 100
Pack(s)
2A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-722
BrandRS PRO
€0.142
Each (In a Pack of 10)
units
2A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-431
BrandRS PRO
€0.135
Each (In a Pack of 10)
units
2A 5mm 5 x 20mm F - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 563-532
BrandRS PRO
€0.135
Each (In a Pack of 10)
units
5A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 541-3108
BrandRS PRO
€0.242
Each (In a Pack of 10)
units
5A 5mm 5 x 20mm F - 250V ac 20mm Glass - - 50 A - - -
RS Stock No. 563-532A
BrandRS PRO
€12.71
1 Pack of 100
Pack(s)
5A 5mm 5 x 20mm T - 250V ac 20mm Glass No - 35 A - No Miniature
RS Stock No. 878-3801
BrandRS PRO
€0.187
Each (In a Pack of 100)
units
5A 5.2mm 5 x 20mm F - 250V ac 20mm Glass - - - - - -
RS Stock No. 563-592
BrandRS PRO
€0.257
Each (In a Pack of 10)
units
10A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 668-6057
BrandRS PRO
€0.186
Each (In a Pack of 10)
units
10A 6.3mm 6.3 x 32mm F - 250V ac 32mm Glass No - 200 A - No Miniature
RS Stock No. 541-3108A
BrandRS PRO
€14.89
1 Pack of 100
Pack(s)
5A 5mm - F - - - Glass - - 50 A - - -
RS Stock No. 563-592A
BrandRS PRO
€13.05
1 Pack of 100
Pack(s)
10A 5mm 5 x 20mm T - 250V ac 20mm Ceramic Yes - 1500 A - No Miniature
RS Stock No. 721-1594
BrandRS PRO
€0.905
Each (In a Pack of 10)
units
2.5A 5mm 5 x 20mm FF - 250V ac 20mm Ceramic Yes - 300 kA UL 248-13 No Miniature
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