SL10 2R005

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Inrush current limiters (ICL) are invaluable components used in power and electrical engineering, offering protection against over-currents. SL10 2R005 is one of the most commonly used types of ICLs. This article gives a detailed overview of the application fields and working principle of the SL10 2R005.

Application Fields

SL10 2R005 ICLs are mainly used in those electrical applications that involve high inrush currents. They are commonly used in power supplies, motor control systems, home appliances, uninterruptible power supplies, power distribution systems, and automotive electronics. These ICLs are also used in the telecom and medical industry, ensuring that sensitive instruments and components are protected against damage and malfunctions.

Furthermore, SL10 2R005 ICLs can be used for protection against transient and short-circuit currents. As they will quickly reduce high inrush currents, they are highly-suitable for applications involving frequency converters, drives, transformers, and other power components.

Working Principle

SL10 2R005 ICLs are based on negative temperature Coefficient (NTC) thermistors. When a device is connected, the temperature coefficient of the thermistors increases, causing an increase in resistance. As soon as the inrush current exceeds the rated limit, the resistance increases, limiting the inrush current and thus protecting the system.

Once the device is switched off, the thermistors no longer get hot, and the resistance drops back down to its original low resistance level. The SL10 2R005 ICLs are designed with a "switching-off time". This means that the resistance takes a certain amount of time to drop back down to its standard value.

The SL10 2R005 ICLs employ a specific electronic technology that features high inrush current limiting performance, high accuracy, and a fast response time. In addition, they have a wide temperature range between -20°C and 80°C, making them highly reliable in demanding environmental conditions. As a result, they are highly durable and able to offer superior protection against over-currents in applications where the risk of malfunction is high.

Conclusion

SL10 2R005 inrush current limiters are frequently used in various applications, including the telecom and medical industry, where protection against over-currents is essential. Due to their high inrush current limiting performance and wide temperature range, they are highly reliable in demanding applications. Moreover, their working principle is based on NTC thermistors that can effectively reduce inrush currents, even if the current exceeds the rated limit.

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