CD4850D2UH

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Introduction of Solid State Relays

A solid state relay (SSR) is an electronic switching device that switches on or off when an external electrical signal is applied to its control terminal. Unlike conventional electromechanical relays, the switching process of an SSR is accomplished by the passage of electric current through semiconductors, and is thus known as a "solid-state switch". SSRs are commonly used in many industrial and consumer applications, from controlling electric loads in home appliances to providing protection against power surges in industrial machines.

Overview of CD4850D2UH Solid State Relay

The CD4850D2UH is a 45A, 4KVAC solid state relay that provides reliable performance and overload protection. It comes with a power on indicator for easy monitoring of the operation status. The integrated thermal protection circuit secures the relay from being damaged due to excessive load. The relay has RoHS compliant and flexible mounting options to meet the specific needs of any application. The CD4850D2UH is the perfect choice for protecting relays from damage due to overloading and short circuits, making it an ideal solution for high power applications.

CD4850D2UH Application Field and Working Principle

Application Field

The CD4850D2UH is an ideal solution for industrial applications such as fan control, heater control, air conditioner control, power supply control, temperature control, door opening and closing control, motor control, and emergency lighting systems. It is also suitable for household applications such as fan heaters, water heaters, and pool pumps.

Working Principle

The CD4850D2UH works by using an input signal to control the switching of electric current through a set of semiconductor switches. When an input signal is applied to the control terminal of the relay, a current flows through the integrated thermal protection circuit. This current activates an internal transistor, which then switches the relay on. When the input signal is removed, the power is shut off and the transistor deactivates, thereby switching the relay off.

Conclusion

The CD4850D2UH is a robust and reliable solid state relay that is suitable for a variety of industrial and household applications. It comes with a power on indicator for easy monitoring of the status and an integrated thermal protection circuit to secure it from being damaged due to excessive loads. The relay is highly suitable for high power applications and provides protection against power surges and overloads.

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