H12WD4825-10

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Solid State Relays (SSRs) are electronic devices that control the state of an AC power source by using a relatively low-power DC input signal. They are durable and reliable, making them ideal for industrial and commercial applications that require precise control of the AC currents and voltage. The H12WD4825-10 is one such SSR, which is used to control heavy loads at high frequencies (up to 1000Hz). This type of SSR is often used in safety systems, such as in elevators and escalators, to safely control their operation. The following will discuss the application field and working principle of the H12WD4825-10.

Application Field

The H12WD4825, a DC-to-AC SSR, is ideal for controlling heavy loads, due to its high overload capacity. It can control currents up to 8A (at 220VAC); this is more than double the capacity of similar SSRs on the market. It can be used in a variety of industrial and commercial applications, such as:

• HVAC systems
• Automatic doors
• Escalators/elevators
• Robotics
• Test equipment
• Printing presses

The H12WD4825-10 is also used in green energy applications, such as solar panels, to efficiently regulate the currents. In addition, it is UL (Underwriters Laboratories) recognized, meaning it complies with safety standards set by the IEEE (Institute of Electrical and Electronics Engineers).

Working Principle

The principle of operation for the H12WD4825-10 is similar to other SSRs. It utilizes an insulation barrier between the low-voltage control signal and the heavy AC load. When the control input voltage is applied, a Thyristor, a type of semiconductor device, is activated. This allows the AC current to flow and the load to be activated. When the input voltage is removed, the Thyristor is deactivated and the AC current is cut off, turning the load off.

The H12WD4825-10 features an over-voltage protection circuit which prevents it from being damaged due to power surges or reverse voltage connections. This helps to ensure the safety and reliability of the SSR, as it can withstand voltages up to 500VAC. The SSR also features a high-fidelity input signal, which ensures a more precise control, even when subject to high frequencies (up to 1000Hz).

The H12WD4825-10 is a versatile solid state relay that is ideal for a variety of applications. It provides precise control of heavy loads at high frequencies, while also offering over-voltage protection and high fidelity input signal capability. With its UL recognized status, the H12WD4825-10 offers reliable and durable performance in a wide range of industrial and commercial applications.

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