What are the characteristics of bolt fuses

Bolt fuse is a type of fuse installed in a circuit through bolt connection, commonly used in high current

and high voltage applications such as industrial electrical equipment and power systems. Here is a

detailed introduction to its features:

-* * Large rated current range * *: It can provide a large rated current value, ranging from tens of amperes

to thousands of amperes, which can meet the protection needs of different high-power circuits. For

example, in the circuit protection of large industrial motors, bolt fuses can be selected with a rated

current of several hundred amperes or even thousands of amperes to ensure that the fuse will not

malfunction during normal operation of the motor and can cut off the circuit in a timely manner in case

of short circuits or other faults.

-High breaking capacity: It has a high short-circuit breaking capacity and can safely and reliably cut off

large currents in the event of a short-circuit fault. Generally speaking, the breaking capacity of bolt fuses

can reach tens of kiloamperes or even higher, effectively protecting circuit equipment from damage

caused by short-circuit currents. For example, in some high-voltage power systems, when a short-circuit

fault occurs, bolt fuses can quickly cut off short-circuit currents of up to 2kA or more.

-Low resistance characteristic: Under normal operating conditions, the resistance of bolt fuses is relatively

low. This helps to reduce the power loss of the fuse itself, decrease heat generation, and improve the

efficiency of the circuit. Low resistance can also ensure that there will be no excessive voltage drop in the

circuit due to the presence of fuses, which will affect the normal operation of other devices.

-* * Easy to install * *: Using bolt connection, installation and disassembly are relatively simple. Simply fix

the fuse in the corresponding installation position with bolts to complete the installation, making it easy

to quickly replace and maintain on site.

-Good mechanical stability: The bolt connection method ensures a secure connection between the fuse

and the circuit, providing good mechanical stability. Capable of withstanding certain external forces such

as vibration and impact, not easily loosened or detached, ensuring reliable operation in complex

industrial environments.

-Good heat dissipation performance: usually has a large external size and surface area, which is conducive

to heat dissipation. During normal operation and overload, the generated heat can be dissipated in a

timely manner to avoid affecting the performance and lifespan of the fuse due to high temperature.

-High degree of standardization: There is a relatively unified standard specification, and bolt fuses of the

same specification produced by different manufacturers have high consistency in size, electrical

performance, and other aspects. This makes it more convenient for users to choose and replace fuses, and

also facilitates interchangeability.

-Wide applicability: It can be applied to various types of circuits and equipment, such as industrial control

cabinets, power transformers, large UPS power supplies, etc. Bolt fuses can provide effective overcurrent

protection for both AC and DC circuits