2967882

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Solid State Relays (SSRs) are a type of electronic switching device which uses a semi-conductor or other switching element as opposed to the mechanical contacts of traditional relays. SSRs are commonly used in industrial and commercial applications and allow for greater speed and dependability in the control of a variety of loads. This article will focus on the application field and working principle of the SSR model 2967882.

Applications of the Model

As a universal type two-channel SSR with a high random turn-on capability, the 2967882 is suitable for a wide range of applications. It can be used to switch on/off a variety of loads including resistive, capacitive, and inductive loads, as well as both AC and DC loads. The model is designed to provide reliable switching of up to 25 Amps at 24-480VAC. The model also offers a wide range of features, including protection against short circuit, transformer, over-voltage, and over-temperature conditions. These features make the model ideal for industrial control, process control, and automation applications.

Working Principle

The working principle of the 2967882 is based on the use of an SCR (silicone-controlled rectifier) as the switching element. SCRs are usually connected in series to the input side of the SSR, and when triggered turn on the output side of the SSR. To trigger the SCR, a control signal is provided to the gate. This control signal provides the gate voltage required to turn on the SCR.

When the SCR is triggered, a current is allowed to flow through the load, which in turn generates thermal energy; this thermal energy is more commonly known as heat. To activate the SCR, the control signal must be maintained above a certain level, usually between 2 to 10 V. If the control signal drops below the given level, the SCR will turn off and the load will be de-energized.

In order to trigger the SCR as quickly as possible, it is important to ensure that the gate voltage reaches the required level as quickly as possible. To this end, many SSRs have a snubber circuit integrated, which allows them to switch within milliseconds.

Conclusion

This article has discussed the application field and working principle of the SSR model 2967882. As a high random turn-on capable two-channel SSR, the model is suitable for a wide range of applications, and offers protection against various conditions. The model’s working principle is based on the use of an SCR as the switching element, which is triggered by a control signal provided to the gate. Integrating a snubber circuit allows the model to switch quickly, allowing for faster control of loads.

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