CL-50

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Inrush Current Limiters (ICL) are devices that provide protection from high inrush currents in a circuit. One of the most common ICLs is the CL-50. This section will discuss the application field and working principle of the CL-50.

The CL-50 is a unidirectional inrush current limiter, meaning it can only handle one-way current. It is used in applications requiring a low voltage and/or high current limit, such as audio amplifiers, motor control systems, and power supplies. The CL-50 is designed to limit the peak current to a predetermined level, providing protection against overload, circuit damage, or possible fire hazard.

The working principle of the CL-50 is relatively simple. At the start of each occurrence of a current overload, an electromagnetic field created by the permanent magnet will be triggered. This will cause an immediate reduction in the amount of current entering the circuit. The amount of current that is allowed to pass through will be determined by the value of the resistor, capacitor, and inductor used in the CL-50. The electromagnetic field will remain active until the current overload has been removed, effectively limiting the flow of current.

The CL-50 has two different versions: one with a thermal fuse, and another with a normally closed semiconductor switch. The thermal fuse version provides an additional level of protection in case of a fault or overload. The normally closed semiconductor switch version provides an immediate stoppage of current in the event of a fault or overload. The two versions can also be used in combination with each other to further improve system protection.

In conclusion, the CL-50 is an essential device when protection from sudden inrush currents in a circuit is required. Its simple working principle allows for a quick and easy installation, and the two versions of the device provide further flexibility and protection. It is important to ensure that the device is specified correctly depending on the application, so that it provides the maximum level of protection.

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