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. 537-1212
Mfr. Part No.S500-1-R
$0.33
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 537-1385
Mfr. Part No.S506-500-R
$0.576
Each (In a Pack of 10)
units
500 mA 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 537-1127
Mfr. Part No.S500-50-R
$5.006
Each (In a Pack of 10)
units
50 mA 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 412-302
Mfr. Part No.TDC10-5A
$0.544
Each (In a Pack of 10)
units
5 A 6.3 x 32mm F 250 V ac 31.8mm 6.35mm Glass - - - - - 50 A -
RS Stock No. 563-542
BrandRS PRO
$0.388
Each (In a Pack of 10)
units
4 A 5 x 20mm T 250 V ac 20mm 5mm Glass No - - Miniature No 35 A +125°C
RS Stock No. 169-9366
Mfr. Part No.TDC10-5A
$0.413
Each (In a Bag of 1000)
units
5 A 6.3 x 32mm F 250 V ac 31.8mm 6.35mm Glass - - - - - 50 A -
RS Stock No. 188-7000
Mfr. Part No.G200750
BrandMersen
$2.34
Each (In a Pack of 10)
units
16 A 10 x 38mm - 500 V ac 38mm 10mm Ceramic Yes GG - - - 120 kA -
RS Stock No. 563-419
BrandRS PRO
$0.509
Each (In a Pack of 10)
units
1 A 5 x 20mm F 250 V ac 20mm 5mm Ceramic Yes - - Miniature No 1500 A +125°C
RS Stock No. 169-9421
Mfr. Part No.S506-500-R
$0.197
Each (In a Bag of 1000)
units
500 mA 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 541-3524
Mfr. Part No.0219005.MXAP
BrandLittelfuse
$0.773
Each (In a Pack of 10)
units
5 A 5 x 20mm T 250 V ac 20mm 5mm Glass - - - - - 150 A +125°C
RS Stock No. 563-728
BrandRS PRO
$0.388
Each (In a Pack of 10)
units
1.6 A 5 x 20mm T 250 V ac 20mm 5mm Glass No - - Miniature No 35 A +125°C
RS Stock No. 169-9397
Mfr. Part No.S500-50-R
$2.397
Each (In a Bag of 1000)
units
50 mA 5 x 20mm F 250 V ac 20mm 5mm Glass - - - - - 35 A -
RS Stock No. 541-3041
Mfr. Part No.0313005.MXP
BrandLittelfuse
$0.962
Each (In a Pack of 10)
units
5 A 6.3 x 32mm T 250 V ac 32mm 6.3mm Glass - - - - Yes 200 A +125°C
RS Stock No. 169-9367
Mfr. Part No.TDC10-10A
$0.898
Each (In a Bag of 1000)
units
10 A 6.3 x 32mm F 100 V ac 31.8mm 6.35mm Glass - - - - - 100 A -
RS Stock No. 769-0029
Mfr. Part No.0313005.HXP
BrandLittelfuse
$1.43
Each (In a Pack of 10)
units
5 A 6.3 x 32mm T 250 V ac 31.75mm 6.35mm Glass - - - - - 200 A @ 250 V ac +125°C
RS Stock No. 414-027
BrandRS PRO
$1.331
Each (In a Pack of 10)
units
1 A 6.3 x 32mm T 500 V ac 32mm 6.35mm Ceramic Yes - UL 248-13 Miniature No 1500 A +125°C
RS Stock No. 412-324
Mfr. Part No.TDC10-10A
$0.917
Each (In a Pack of 10)
units
10 A 6.3 x 32mm F 100 V ac 31.8mm 6.35mm Glass - - - - - 100 A -
RS Stock No. 729-6699
Mfr. Part No.376582
BrandFluke
$5.00
Each
units
2 A 1/4 x 1in - 250 V 25.4mm 6.35mm - - - - - - 0.1 kA -
RS Stock No. 413-210
BrandRS PRO
$1.257
Each (In a Pack of 10)
units
3 A 6.3 x 32mm F 500 V ac 32mm 6.35mm Ceramic Yes - UL 248-13 Miniature No 1.5 kA -
RS Stock No. 769-0091
Mfr. Part No.0314020.HXP
BrandLittelfuse
$2.444
Each (In a Pack of 5)
units
20 A 6.3 x 32mm F 250 V ac 31.75mm 6.35mm Ceramic - - - - - 1000 A @ 250 V ac +125°C
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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 ...