SL22 12102

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Inrush Current Limiters (ICLs) are a class of components that regulate the amount of current allowed through the device in order to reduce the risk of power shortages or surges during the start-up of an electrical system. Increasingly, ICLs are being used in a variety of applications, including the SL22 12102. In this article, we’ll discuss the application field and working principle of the SL22 12102 Inrush Current Limiter to better understand how it functions.

1. Application Field

The SL22 12102 Inrush Current Limiter is widely used in areas where power must be provided safely and with precision. These areas include the telecommunications, security systems, electric lighting, motor starting, and power supply industries. It helps to reduce the current inrush to the system, protecting both the system and the user from a dangerous power surge.

Specifically, the SL22 12102 is used in telecom applications, like optical line terminals, optical network units and central office switch replacement, due to its high accuracy of 0.2A and high linearity of -40~+40mA. It is especially suited for applications requiring a higher degree of precision.

2. Working Principle

The way the SL22 12102 works is fairly simple. It consists of two bands of material, known as the winding and stationary bands. When power is first sent through the device, the current passes through the winding band due to its higher resistance. The stationary band, however, has a much lower resistance and so the current is drawn away and dissipated, preventing the current inrush and surge.

To control the amount of current allowed to pass, the damping circuit gradually reduces the resistance of the winding band shutoff. As the resistance of the winding band decreases, more current is allowed to flow through, and the current inrush is further reduced. This damping circuit is adjustable, allowing you to vary the current output as needed for different applications.

In addition, the device is equipped with a soft start function. This function limits the current output during the start-up period, ensuring that the system boots up safely and accurately. Additionally, the SL22 12102 has a high efficiency of up to 93%, making it a great choice for applications where power savings are a priority.

Conclusion

The SL22 12102 Inrush Current Limiter provides a reliable and precise way to regulate the current that is allowed to pass through an electrical system. It helps to ensure that the system is stable and safe during start-up, and is especially suited to applications where a high degree of precision is required. With its adjustable damping circuit and power saving capabilities, the SL22 12102 is a great choice for any application.

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