0318.300H

Fuses have been used in applications for many decades and the 0318.300H has become a staple of the fusing technology. The 0318.300H is a standard three-phase fused disconnect switch with a maximum voltage of 600V and interrupting current of 300A. It is commonly used in residential, commercial and industrial settings where safety, quick interruption, and access to the fuse terminal block are essential requirements.

Design Features

The 0318.300H is constructed from injection-molded polyester reinforced with 30% glass for a strong, durable, chemical and flame resistant base. It is designed with a molded-on striker assembly that is electrically isolated, manufactured with brass or stainless steel reinforcements and corrosion resistant coating. It features the latest safety features to exceed UL standards including a fuse drop indicator, shallow plug depth, and a six-pin locking system. The 0318.300H incorporates a non-conducting, positive-locking handle, since it allows for quicker fusing and a secure connection between the fuse block and the switch. This design there is also a snap-on index cover that fits over the coil and indicator to secure the switch.

Working Principle

The working principle of the 0318.300H is based on the current carrying capability of a material. When a fault arises, the current rises, exceeding the material’s current carrying capability. This results in a rapid heat build-up and a violent explosion, breaking the mechanical continuity of the fuse element and resulting in immediate interruption of the circuit. The fused disconnect switch safely breaks the circuit, preventing further damage to electrical equipment and injury to personnel.

Applications

The 0318.300H is suitable for connection and disconnection of motors, transformers, capacitors, electric instruments and control switchgears. It is often used in applications such as manufacturing, marine, oil and gas, medical, and food and beverage facilities. It is also an ideal safety device for any location with potentially hazardous voltage. Its sealed fuse currently carrying capabilities make it suitable for electrical control boards and installations in residential, commercial, and industrial settings.

Conclusion

The 0318.300H fused disconnect switch is a reliable, convenient, and highly protective device for the installation of circuits with potentially hazardous voltage. Its impressive design features make it an ideal choice for various commercial and industrial applications, where safety, quick interruption, and easy access to the fuse terminal block are important. The fused disconnect switch is designed to break the circuit quickly upon the occurring of a fault, which prevents further damage to electrical equipment or injury to personnel.