AQ3A2-ZT4/32VDC

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Solid State Relays (SSR) have been developed for applications requiring accuracy, reliability and low on-state resistance. AQ3A2-ZT4/32VDC is one kind of a SSR, which consists of optocoupler, DC power supply, driving circuit and output triac. When the input voltage of AQ3A2-ZT4/32VDC is excited, the built-in feedback system can produce low level DC control current through optocoupler to the output triac, so as to make the load connected to the output terminal. Let\'s take a look at what its application field is and how it works.

Application field

AQ3A2-ZT4/32VDC can be applied in wide range of areas, such as industrial automation, temperature and pressure control, light and power control, security monitoring, and audio communication system. Specifically, in industrial automation, it can be used to control motor speed, conveyor belts, auto process machines and other industrial equipment; in temperature and pressure control, it can be used to control furnace temperature, cookers, dishwashers, air conditioners and so on; in light and power control, it can be used for lighting control, switch power control, and line operation control; in security monitoring, it can control wired and wireless alarm systems, and in audio communication systems, it can be used for signal transmission and amplification.

Working Principle

The working principle of AQ3A2-ZT4/32VDC is based on the principle of opto-isolator. The opto-isolator is a core component of SSR which consists of an infrared LED and a photodiode, mounted in a lightproof chamber. The light-proof chamber provides an electrically and optically isolating plate between the input and output. So how does it work? Firstly, when a signal enters the SSR, it is modulated and amplified into DC or AC via the opto-isolator, then it is fed to the output triac, and finally when the output triac turns on, the electrical circuit is completed and the output current flows to complete the operation. It can be seen that the optocoupler in the AQ3A2-ZT4/32VDC is at the core of its working principle.

As a kind of SSR, AQ3A2-ZT4/32VDC is applicable for various kinds of non-contact electrically controlled electronic circuits. Its working principle is based on the opto-isolator, which provides electrical isolation between the input and output signals. In addition, since its output pin is equipped with resistance, it is capable of effectively suppressing surge current, making it both reliable and safe to use in various industries.

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