3404.2327.23

Fuses

A fuse is an electrical device designed to protect electrical systems and components from excessive current. When electrical current exceeds the time-current characteristics of a fuse, the fuse breaks the circuit to prevent the current from overloading the system.

The designation 3404.2327.23 refers to one of the families of UL rated fuses available on the market. This family of fuses is designed for AC low voltage power distribution control panels such as motor control centers, switchgear, and electrical control boxes. The fuses can be used for overcurrent protection in a variety of industrial and electrical applications and conform to UL 4248-14.

Application Field

The 3404.2327.23 fuse is a three-phase, low voltage fuse with a rated voltage of 600-Volt AC, a rated current up to 200 Amps, and a rated interrupting capacity of 100kA AC. It is designed for use in large motor loads such as motors, pumps, and other electrical devices. It is also suitable for use with variable frequency drives and other equipment that may develop starting or running overcurrent conditions.

Other applications can include the protection of lighting, heating or cooling circuits, as well as the protection of branch circuits or backup systems. The devices are not suitable for use in direct are contact applications.

Working Principle

The 3404.2327.23 is a time-delay fuse. When the current flow through the fuse exceeds the rated ampere value, the fuse melts and breaks the circuit. This prevents the current from becoming excessive and damaging the electrical system.

The time-delay characteristic of the fuse ensures that the fuse will not open until the current in the circuit has been sustained for a certain amount of time. This prevents the fuse from opening due to surges or short-term, momentary overloads that occur in the circuit, such as when a motor starts. The time-delay setting of the fuse should be selected based on the application.

Conclusion

The 3404.2327.23 is a UL rated, three-phase, low voltage fuse designed for applications such as motor control centers, switchgear, and AC low voltage power distribution control panels. It is rated for up to 200 Amps and has a rated interrupting capacity of 100kA AC. It can be used to protect large motor loads such as motors, pumps, and other electrical devices, as well as variable frequency drives and other equipment that may develop starting or running overcurrent conditions. However, it should not be used in direct arc contact applications.