AQZ205D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

In the field of industrial control, solid state relays (SSRs) have become increasingly essential for the automation of processes in a diverse array of commercial settings. The AQZ205D is an example of a high performance, precision, and reliable SSR, which is used to control and protect AC loads, providing highly accurate load control, with performance attributes that place it at the forefront of SSR technology. This article takes a look at the application areas and working principle of the AQZ205D, to provide an insight into how this SSR can benefit a range of applications.

Application Areas

The AQZ205D is a zero-crossing type SSR, which is suitable for a wide range of AC load current control applications. It has a maximum rated load of 25A AC, making it suitable for controlling AC motor loads, heating elements, lamps and other AC loads. The operational voltage varies from 24 – 480V AC, allowing for a wide range of load control scenarios, and it has a switching frequency range of up to 50Hz. In addition, it has a high insulation resistance of up to 2000MΩ, which further expands its potential application areas.

The AQZ205D has a maximum ON and OFF time of 1ms and 500µs respectively, providing highly efficient load switching, and a range of circuit protection functions. The SSR is well suited to safety critical applications due to the full temperature protection threshold control feature, which results in high performance operation even in difficult environmental conditions.

Working Principle

The AQZ205D is a silent type SSR, which utilizes insulated gate bipolar transistor (IGBT) technology to provide efficient load switching. The construction of the AQZ205D is based on an IGBT module, with a power diode and a heat sink connected to it. The IGBT is connected to the control circuit, allowing the switching of the AC load. The SSR also includes an internal Snubber circuit, which helps to reduce voltage spikes and arc when the AC load is switched on and off.

The operation of the AQZ205D is based on the zero-crossing principle. This means that when the input voltage is within a certain range, either ON or OFF state can be selected, and the AC load will switch accordingly. The ON/OFF delay time of the AQZ205D can be adjusted in accordance with the application needs. In addition, the AQZ205D employs a temperature protection function, which prevents any over-heating of the IGBT and makes it suitable for long-term use.

Conclusion

The AQZ205D is an advanced, precise, and reliable solid state relay which can be used to control and protect AC loads at a great variety of conditions and applications. It is an ideal choice for safety critical applications due to its temperature protection function which helps to ensure reliable load switching operations, even in challenging environmental conditions.

The specific data is subject to PDF, and the above content is for reference