SG338

Inrush current limiters (ICL) are designed to limit the maximum input current of an electrical circuit, thus ensuring the highest level of safety and protection possible. The SG338 ICL is specifically designed for industrial applications where high inrush currents are expected. In this article, we will discuss the application field and working principle of the SG338 ICL.

What Is an Inrush Current Limiter (ICL)?

Inrush current limiters (ICLs) are type of protection devices used to safeguard the operation and maintenance of electrical circuits, and their components, from over current associated with the surge of power during start-up, short circuits, or momentary overloads. Inrush currents occur when an electrical device is suddenly connected to a power source. This sudden change in voltage can cause an initial, and often intense, surge in current that exceeds the normal operating current. This can be potentially damaging to your electrical system. To protect your system, inrush current limiters are used to limit the amount of current that can be drawn from the power source.

What is an SG338 ICL?

The SG338 ICL is a power management element designed to limit the maximum inrush current from any given power source. The device is available in two versions, the SG338-110 which has a maximum current rating of 110A and the SG338-120 which has a maximum current rating of 120A. The device is designed to accurately monitor and limit the inrush current and is suitable for a wide range of industrial applications such as HVAC, telecommunications, industrial motor control, and motor pump applications.

Application Field of SG338 ICL

The SG338 ICL is suitable for a wide range of industrial applications where high inrush currents are expected. The device is designed to accurately limit the inrush current from the power source, protecting the connected motor and other components from unnecessary damage. Additionally, the SG338 ICL can be used for safety and surge protection in medical equipment, lighting and electronic appliances, generatives, HVAC systems, and commercial facilities.

Working Principle of SG338 ICL

The SG338 ICL is specifically designed to be an efficient and self regulating device that accurately limits the inrush current from any power source. The device works by dissipating a small amount of energy during the start up phase which then limits the current draw from the power source. The device does this by using an internal thermal fuse that is triggered during the start up phase, providing an effective thermal fuse circuit to limit the level of current.

The device is self regulating and can automatically adjust its current limiting threshold based on the current draw from the power source. This allows it to effectively balance the current draw from the power source for optimal performance. Additionally, the device is designed with a built-in thermal protection that kicks in when the current draw exceeds the maximum rating, providing an additional layer of protection.

Conclusion

In conclusion, the SG338 ICL is specifically designed for industrial applications where high inrush currents are expected. The device is designed to accurately monitor and limit the inrush current and is suitable for a wide range of industrial applications such as HVAC, telecommunications, industrial motor control, and motor pump applications. The device works by dissipating a small amount of energy during the start up phase which then limits the current draw from the power source. This allows it to effectively balance the current draw from the power source for optimal performance. Additionally, the device is designed with a built-in thermal protection that kicks in when the current draw exceeds the maximum rating, providing an additional layer of protection.