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. 169-9411
Mfr. Part No.S500-200-R
$0.392
Each (In a Bag of 1000)
units
200 mA 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 420-117
BrandRS PRO
$1.634
Each (In a Pack of 10)
units
5 A 5 x 20mm FF 250 V ac 20mm 5mm Ceramic Yes - UL 248-13 Miniature No 300 kA -
RS Stock No. 914-4358
Mfr. Part No.ATM10
BrandMersen
$12.85
Each
units
10 A 10 x 38mm F 600 V 38.1mm 10.5mm GMG - - UL 248-14 Midget - - -
RS Stock No. 541-3489
Mfr. Part No.021901.6MXAP
BrandLittelfuse
$0.817
Each (In a Pack of 10)
units
1.6 A 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 150 A +125°C
RS Stock No. 537-1559
Mfr. Part No.S501-500-R
$1.237
Each (In a Pack of 10)
units
500 mA 5 x 20mm F 250 V ac 20mm 5mm Ceramic Yes - - - - 1500 A -
RS Stock No. 169-9446
Mfr. Part No.S506-50-R
$0.369
Each (In a Bag of 1000)
units
50 mA 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 541-4735
Mfr. Part No.0215008.MXP
BrandLittelfuse
$1.349
Each (In a Pack of 10)
units
8 A 5 x 20mm T 250 V ac 20mm 5mm Ceramic Yes - - - - 1500 A +125°C
RS Stock No. 209-9361
BrandRS PRO
$6.039
Each (In a Pack of 10)
units
2 A 6.3 x 32mm FF 600 V ac 32mm 6.3mm Ceramic Yes - - Miniature No 50 kA -
RS Stock No. 703-8437
Mfr. Part No.C14G25
$4.028
Each (In a Pack of 10)
units
25 A 14 x 51mm - 690 V ac 51mm 14mm Ceramic - GG - gL - - - 80 kA -
RS Stock No. 725-8057
Mfr. Part No.0218.032MXP
BrandLittelfuse
$1.712
Each (In a Bag of 10)
units
32 mA 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 35 A +125°C
RS Stock No. 537-1278
Mfr. Part No.S500-200-R
$0.702
Each (In a Pack of 10)
units
200 mA 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 541-4369
Mfr. Part No.0217.800MXP
BrandLittelfuse
$0.401
Each (In a Pack of 10)
units
800 mA 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A +125°C
RS Stock No. 668-6001
BrandRS PRO
$0.442
Each (In a Pack of 10)
units
4 A 5 x 20mm T 250 V ac 20mm 5mm Glass No - - Miniature No 200 A +125°C
RS Stock No. 458-8453
Mfr. Part No.KTK-1/4
$27.168
Each (In a Pack of 5)
units
250 mA 10 x 38mm F 600 V 38.1mm 10.3mm Melamine Yes - - - - 100000 A -
RS Stock No. 537-1666
Mfr. Part No.S506-50-R
$0.944
Each (In a Pack of 10)
units
50 mA 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 668-5969
BrandRS PRO
$0.381
Each (In a Pack of 10)
units
2 A 5 x 20mm F 250 V ac 20mm 5mm Glass No - - Miniature No 100 A +125°C
RS Stock No. 169-9387
Mfr. Part No.S500-8-R
$0.166
Each (In a Bag of 1000)
units
8 A 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 80 A -
RS Stock No. 806-8405
Mfr. Part No.E1014580
BrandMersen
$14.176
Each (In a Pack of 10)
units
20 A 10 x 38mm F 690 V ac 38mm 10.3mm - - GR - - - - -
RS Stock No. 267-3391
Mfr. Part No.70-010-04/2A
BrandSIBA
$6.944
Each (In a Pack of 5)
units
2 A 5 x 25mm F 250 V 25mm 5mm Ceramic Yes - - - Yes 1500 A -
RS Stock No. 820-7209
Mfr. Part No.KLKD030.T
BrandLittelfuse
$16.97
Each
units
30 A 10 x 38mm F 600 V 38mm 10.31mm Melamine - GPV - - - - -
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This glass cartridge fuse is ideal for providing ...
Description:
This glass cartridge fuse is ideal for providing protection to devices or internal circuits. They are deliberately weaker components which, when too much current is drawn, will blow. Features:Glass cartridge5 x 20 mm cartridge sizeT Speed RatingAnti-surgeLow Breaking Capacity. Why ...