SL22 16004-B

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Introduction to Inrush Current Limiters (ICLs)

An Inrush Current Limiter (ICL) is an electrical device or circuit that limits the amount of inrush current to electronic components or circuits. Inrush current is defined as the instantaneous, large current that is drawn by an electrical component or electric motor when power is first applied, and it is a critical factor in the successful operation of most electrical products. An ICL is generally designed for a particular application and is used to limit current while still allowing the component or circuit to draw the current it needs for operation.

SL22 16004-B application field and working principle

The SL22 16004-B Inrush Current Limiter (ICL) is a high-current, high-performance device designed to meet the needs of a variety of industrial applications. The SL22 16004-B ICL is designed to protect electrical equipment from inrush current, which is defined as the instantaneous, large current that is drawn by an electrical component when power is applied. The SL22 16004-B ICL is ideal for any system requiring maximum inrush current protection, including sensitive electronics, motors, and transformers. The SL22 16004-B ICL is designed to limit the surge current, while still allowing the component to draw the current it needs for operation.

The SL22 16004-B ICL is capable of handling a wide range of input voltage levels. It features a high-voltage capability of up to 480VAC, an adjustable current threshold of 0.5A to 60A, and has an on-off time of less than one millisecond. Additionally, the device is designed to automatically reset itself after experiencing an overload situation, so no manual reset is required.

This inrush current limiter employs a novel design to limit inrush current, based on a semiconductor-controlled thyristor, or SCR. When the power is supplied to a load, the current rises immediately, reaching its peak when all components in the load are saturated with magnetic flux. The SL22 16004-B inrush current limiter is designed to sense the peak current and then rapidly reduce the current to the desired level. This allows the load to operate without the risk of burning out components or causing other damage due to excessive inrush current.

Additionally, this inrush current limiter can be used in a wide range of applications, such as motor control, audio/visual equipment, and instrumentation. It is capable of operating in a temperature range of -20°C to 75°C and has a maximum ripple of 2% of the output voltage.

The inrush current limiter is connected to the load through two terminals, one on each side of the SCR. When the power is initially applied, the current passes through the device and is limited to the predetermined current threshold. When the current reaches the threshold, the SCR reduces the current to the desired level, allowing the load to receive the necessary current for operation.

In addition to providing inrush current protection, the SL22 16004-B inrush current limiter also offers protection against short circuit, overcurrent, and overvoltage conditions. The device is designed to automatically reset itself after experiencing an overload situation, offering the ultimate in safety and reliability.

The SL22 16004-B high inrush current limiter is the ideal choice for a variety of applications, offering superior performance and protection against inrush current. This device is easy to install and provides the reliable performance that is needed in today’s industrial environment.

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