CMF-SDP07-2

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PTC Resettable Fuses are an automatic re-closable safety device that safely connects an electric circuit when a predetermined amount of current flows through it. This type of component helps to protect electrical systems from short circuits, overvoltage, and thermal overload, making it a must have component in any industrial or commercial application. The CMF-SDP07-2 is a PTC Resettable Fuse that is designed to help protect against short circuits, overvoltage, and thermal overloads.

The CMF-SDP07-2 defines a field of application, also known as a “parameter”. The parameters are the amount of current that trips the fuse (also known as the operating current or trip current) and the self-renewal voltage (or reset voltage).

The operating current is the amount of current that trips the fuse, meaning that when more current flows through the fuse than it can handle, the element will cause a trip. To determine the operating current, the parameters must be followed that are set on the CMF-SDP07-2; the trip current is set at a current of 0.5A-16A. The other parameter is the self-renewal voltage, which is the voltage to which the fuse will automatically reset when the circuit is not being overcharged. The reset voltage is set to a range of 48V-72V or as recommended in the product description.

The working principle of the CMF-SDP07-2 is based on two components that are key to the operation of the fuse. The first component is the PTC Thermistor element, which functions as a temperature sensor. This element senses any changes in temperature caused by increased current loads and responds by quickly generating heat to trip the fuse and disconnect the circuit from excessive current flows. The second component of the fuse is the bi-metallic strip, which is responsible for resetting the fuse. The bi-metallic strip is made up of two metals that expand in response to heat, thus forcing the bi-metallic strip to trip the switch, which disengages the fuse.

One of the main advantages of the CMF-SDP07-2 is that it is self-renewing, which means that once the fuse trips, the reset voltage is applied to reset the fuse. This is important because it is much safer compared to using a fuse with no self-renewal. Furthermore, the CMF-SDP07-2 is much easier to install than a thermal fuse and has a longer life span.

The CMF-SDP07-2 PTC Resettable Fuses provides protection against thermal overloads, overvoltage, and short circuits, which help to ensure the safe operation of electrical systems in industrial or commercial applications. Additionally, the self-renewal of the fuse is a great safety feature that may prevent catastrophic failure of the circuit. Furthermore, the fuse is easy to install and has a longer life span compared to thermal fuses.

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