CD2450D1V

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Solid State Relays (SSRs) provide a high-level of electrical isolation between the control and the load current, along with benefits such as mechanical robustness, long life, and electrical efficiency. The CD2450D1V is an SSR specifically designed to switch load currents up to 5A, suitable for residential, consumer, or industrial applications. We will discuss the application fields and working principle of this component.

Application Fields

The CD2450D1V is a single-mold, single-in-line, high-performance SSR for load currents up to 5A. It is capable of switching mains voltages of up to 250V AC. With an over-load capacity of up to 7A, it can be used for a wide range of residential or commercial applications such as domestic appliances, pumps, heating, and ventilation.

In addition to use in residential applications, the CD2450D1V is suitable for use in high performance industrial systems. It can be used in medical equipment, power supplies, motor controllers, and high-speed data processing systems, just to name a few.

The CD2450D1V features an input connecting bar to simplify connections, and has numerous protection features such as over-current, over-voltage, and reverse-polarity protection. It is also UL\CE approved to ensure safety and reliability for any application.

Working Principle

The CD2450D1V works by using a circuit board with a bipolar transistor. This transistor is used to switch the AC loads. The transistor is triggered by an input signal which is controlled by a circuit board that utilizes an Electric-Optical Coupling (EOC) technique. When the input signal changes from an off-state to an on-state, a voltage is applied to the transistor which causes it to turn on and switch the load current.

The EOC circuit includes a photodiode which is illuminated by a Light Emitting Diode (LED) when the input signal changes state. The photodiode produces a current which is then used to switch the transistor on. The transistor is then able to switch the load current for as long as the input signal remains in the on-state.

The CD2450D1V also has a zero voltage turn-off function which allows the load to be switched off completely. This helps eliminate any residual current and allows for greater editing of the output current.

Conclusion

The CD2450D1V is an SSR designed for load currents up to 5A and for mains voltages up to 250V AC. It has numerous protection features and is UL\CE approved to ensure safety and reliability. Its working principle is based on a circuit board with a bipolar transistor which is triggered by an input signal and an Electric-Optical Coupling technique. It is suitable for residential, commercial, and industrial applications.

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