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 Fuse Size Fuse Speed Voltage Rating Overall Length Diameter Body Material High Rupture Capacity Application Category UL Class Size Designation Includes Indicator Breaking Capacity at Maximum Voltage Rating Maximum Operating Temperature
RS Stock No. 729-6740
Mfr. Part No.892583
BrandFluke
$18.70
Each
units
15 A 10 x 38mm - 600 V 38.1mm 10.3mm - - - - - - 100 kA -
RS Stock No. 729-6719
Mfr. Part No.830828
BrandFluke
$6.60
Each
units
1 A 10.3 x 34.9mm - 600 V 34.9mm 10.3mm - - - - - - 10 kA -
RS Stock No. 729-6693
Mfr. Part No.475004
BrandFluke
$7.70
Each
units
3 A 13/32 x 1-1/2in - 600 V 38.1mm 10.318mm - - - - - - 10 kA -
RS Stock No. 729-6700
Mfr. Part No.740670
BrandFluke
$5.39
Each
units
630 mA 5 x 20mm - 250 V 20mm 5mm - - - - - - 1.5 kA -
RS Stock No. 729-6731
Mfr. Part No.871207
BrandFluke
$31.90
1 Pack of 5
Pack(s)
1 A 13/32 x 1-3/8in - 600 V 34.93mm 10.318mm - - - - - - - -
RS Stock No. 729-6703
Mfr. Part No.643684
BrandFluke
$18.70
Each
units
20 A 13/32 x 1-1/2in - 600 V 38.1mm 10.318mm - - - - - - 100 kA -
RS Stock No. 729-6753
Mfr. Part No.2279339
BrandFluke
$12.10
Each
units
315 mA 6.3 x 32mm F 1 kV 32mm 6.35mm - - - - - - 10 kA -
RS Stock No. 729-6716
Mfr. Part No.871173
BrandFluke
$18.70
1 Pack of 5
Pack(s)
630 mA 5 x 20mm - 250 V 20mm 5mm - - - - - - - -
RS Stock No. 729-6722
Mfr. Part No.871202
BrandFluke
$31.90
1 Pack of 5
Pack(s)
3 A 13/32 x 1-1/2in - 600 V 38.1mm 10.318mm - - - - - - - -
RS Stock No. 729-6738
Mfr. Part No.871215
BrandFluke
$33.00
1 Pack of 5
Pack(s)
- - - - - - - - - - - - - -
RS Stock No. 729-6747
Mfr. Part No.871223
BrandFluke
$49.50
1 Pack of 5
Pack(s)
- - - - - - - - - - - - - -
RS Stock No. 729-6699
Mfr. Part No.376582
BrandFluke
$5.50
Each
units
2 A 1/4 x 1in - 250 V 25.4mm 6.35mm - - - - - - 0.1 kA -
RS Stock No. 729-6734
Mfr. Part No.871210
BrandFluke
$110.00
1 Pack of 25
Pack(s)
- - - - - - - - - - - - - -
RS Stock No. 729-6712
Mfr. Part No.847793
BrandFluke
$200.20
1 Pack of 25
Pack(s)
- - - - - - - - - - - - - -
RS Stock No. 729-6725
Mfr. Part No.871178
BrandFluke
$15.40
1 Pack of 5
Pack(s)
- - - - - - - - - - - - - -