Eaton 6.3A T Glass Cartridge Fuse, 5 x 20mm

This range of glass cartridge fuses from Eaton Bussmann is ideal for providing protection to devices or internal circuits from short circuits and overcurrent. They are deliberately weaker components which, when too much current is drawn, will blow. Once the fuse has blown it will need replacing in order to make the circuit complete and allow the flow of current.

Why choose a glass cartridge fuse?

Glass and ceramic fuses have similar properties. However, you may choose a glass cartridge fuse as it enables you to see the inside of the fuse. Therefore it is easier to determine whether the fuse has blown.

What size is it?

5 mm x 20 mm is a standard cartridge size and it measures approximately 20 mm long by 5 mm in diameter. They are popular in board and panel protection and will fit a compatible 5 x 20 mm fuse holder.

What voltage is it?

These cartridge fuses are available with 40mA to 15 Amp current ratings for applications where the system voltage rating is 250 Volts AC.

What Speed is it?

This particular cartridge fuse is “T” speed rated which means it is a slow-acting fuse, sometimes referred to as anti-surge. It is able to tolerate higher levels for a short period, without shorting. Therefore, if a sudden change occurs, this fuse will not blow immediately. They are suitable for applications where a sudden flow of high current is required.

What is Breaking Capacity?

Breaking capacity is the level of current that the fuse can safely handle without exploding or rupturing. The breaking capacity of your fuse should be greater than the fault current of your electronic circuit. This particular cartridge fuse is LBC (Low Breaking Capacity).

What are cartridge fuses used for?

• For the protection of components and equipment from costly damage used by over-current
• To isolate sub-systems from the main system once a fault has appeared

This time-delay glass tube fuse features a voltage rating of 250V and a current rating of 6.3A. It has a maximum interrupting rating of 63A, ensuring reliable circuit protection. With a cold resistance of 0.0071Ω and a voltage drop of 237.6mV at rated current, this fuse is designed for effective performance in various electrical applications.

• Time-delay design handles high inrush currents effectively
• Low breaking capacity to limit potential damage
• Glass construction provides visibility and safety
• Nickel-plated brass end caps enhance conductivity
• Optional axial leads for easier installation

• Used in consumer electronics and household appliances
• Employed in automation and control circuits
• Suitable for low-voltage electrical applications
• Ideal for lighting and signal systems

Yes, it operates effectively between -40°C and +125°C.

Yes, the time-delay feature allows it to handle inrush effectively.

Eaton formerly known as Bussmann