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

The Eaton S506 Cartridge Fuse is a time-delay fuse with a glass tube construction, designed for efficient circuit protection. It has a current rating of 1.0 A and can handle a typical interrupting rating of 87.5 A at 250 Vac. The fuse offers a cold resistance of 0.0757 Ω and meets IMQ, VDE, and BSI standards, ensuring reliable performance in various applications.

• Time-delay feature prevents nuisance blowing from inrush currents
• Low breaking capacity minimises damage during overload conditions
• Glass body allows for quick visual inspection
• Nickel-plated brass endcaps enhance conductivity and durability
• Operates in temperatures from -40°C to +125°C
• Compatible with axial lead configurations for flexible installations

• Protects circuits in low-power electronic devices
• Suitable for automation systems requiring reliable circuit protection
• Ideal for applications needing time-delay fuses
• Commonly used in lighting systems and home appliances

Yes, it is designed to manage high inrush conditions due to its time-delay functionality.

It is primarily designed for AC applications with a voltage rating of 250 Vac.

Eaton formerly known as Bussmann