PVA1352NSPBF

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Solid state relays (SSR) have greatly supplanted their mechanical counterparts in many areas of industrial applications. They are electronic instead of mechanical, hence providing a much faster and more reliable switching action that is immune to vibration, prolonged shock and temperature changes. As an example, PVA1352NSPBF is one of the most popular solid state relays (SSRs). It is proposed for use in industrial area and digital control applications that require rapid response times.

The PVA1352NSPBF is a DC-input solid state relay, typically used in applications where digital control signals from programmable logic controllers (PLCs) or other industrial automation systems must be switched on and off. It provides an ultra-fast switching time of 10ms, allowing it to be used for small-signal as well as power switching. Thanks to its small dimensions, PVA1352NSPBF is easy to mount in applications where the space for components is limited. It is fully protected against excess temperature, voltage spikes and other electrical faults.

PVA1352NSPBF working principle

The PVA1352NSPBF is the latest version of a DC to AC SSR that utilizes the photo-address-control (PAC) method of operation. It features an optically isolated input section and an optically insulated output stage. When stimulated with a DC voltage, the optically isolated input section detects the DC voltage and provides an optically isolated logic low (LENZ) signal to the optically insulated output section. The optically insulated output section contains a switching element, which in this case is a triac, and a couple of control and protective circuits. Under this method of operation, the triac gate is coupled to the input section via an optically isolated element and it is also coupled to the output section via a secondary winding.

When the input section detects the DC voltage, it provides a logic low (LENZ) signal to the output section, causing a current to flow from the primary winding to the secondary winding. This causes the voltage to drop across the output section, thus turning on the triac and allowing the current to flow from the output section to the load. This process is then reversed when the input section no longer senses the DC voltage, causing the voltage to drop across the output section, thus turning off the triac and the current to the load.

PVA1352NSPBF application fields

Due to its extremely fast switching time of 10ms, the PVA1352NSPBF is ideal for use in industrial applications that require ultra-fast response times. Its small size also makes it suitable for use in situations where space is limited. Examples of these applications include motor control, HVAC, LED lighting control, and audio-visual switching.

It can also be used for small-signal switching, such as for switching signals from PLCs or other industrial automation systems. In this case, the PVA1352NSPBF can be used to switch on and off the supply of electrical current, depending on the signal from the automation system. This allows for remote control of the system’s operation and is especially useful for applications where manual switches are impractical or dangerous.

The PVA1352NSPBF is also suitable for use in power switching applications because of its ability to handle currents of up to 100A. It can be used to switch on and off large-scale loads such as motors, HVAC systems, and lighting systems.

Conclusion

The PVA1352NSPBF is a DC-input solid state relay that is optimized for use in industrial area and digital control applications. It is one of the fastest SSRs currently available, with an optically isolated input section coupled to an optically insulated output section via primary and secondary windings. This allows for ultra-fast switching times of 10ms, and the ability to handle currents of up to 100A. The small size of the PVA1352NSPBF also makes it suitable for use in situations where space is limited. It is suitable for use in both small-signal switching as well as in power switching applications.

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