SL10 10003-B

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Inrush current limiters (ICLs) are used to control the amount of current that can flow into an electrical circuit or device when it is first powered on. They are essential components in applications where the inrush current could cause damage to the circuit, or present a safety hazard to people or property. The SL10 10003-B is a series of ICLs specifically designed to protect high power electric systems from damaging inrush current.

The SL10 10003-B is most often used in motor applications where the motor is switched on and off frequently. When a motor is first powered on, it can draw several times its normal operating current, a phenomenon called inrush current. The SL10 10003-B limits this initial inrush current to a safe level to prevent damage to the motor and circuit. It is also used to protect semiconductors in systems that experience frequent power cycling.

The SL10 10003-B is an example of a thermistor-based ICL, in which the current regulates itself based on the temperature of the thermistor. When the motor is first powered on, the thermistor begins to heat up due to the current passing through it. As the temperature increases, the thermistor’s resistance also increases, which reduces the amount of current passing through the device. The current is regulated until the thermistor reaches its operating temperature, at which point it reaches its maximum current rating. This ensures that the inrush current is limited and does not damage the motor or circuit.

The SL10 10003-B is designed with a simple two-wire construction and has a wide range of current ratings from 10A to 90A. It features excellent overload protection, superior longevity, and low operating temperatures. The device is housed in a molded plastic and is rated for environmental temperatures from -40℃ to +125℃. It is also RoHS compliant and meets UL, CE, and TUV safety requirements.

In summary, the SL10 10003-B is an inrush current limiter designed to protect electric systems from initial surge currents when switched on. It features a two-wire construction, a wide current range, high overload protection, and low operating temperatures. It is suitable for use in a variety of motor-controlled applications, as well as other electrical systems that experience frequent power cycling.

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