A2440

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

A2440 is a type of solid state relays (SSR) primarily used in industrial automation applications. SSRs are electronic switches which act as a bridge between two different voltages—typically an AC load and DC control. A2440, like other SSRs, have few advantages over their mechanical counterparts, such as higher speed and longer life. However, their major advantage is their ability to switch an AC voltage with no disruption in the load current. This makes them ideal for applications where switchers may be exposed to rigorous conditions, such as de-icing devices, motor controls, remote-controlled relay banks, and load-timed contactors.

SSRs tend to be much smaller and lighter than mechanical switches, which makes them suitable for applications such as test equipment, displays, and data processing systems. Unlike mechanical switches, they have no moving parts which makes them ideal for switching high-frequency signals.

The A2440 is a 4-channel SSR, and its switching capacity is 5A@25VAC/VDC. The device comes with two sets of 4NO/4NC contacts, which allow users to choose from either normally open (NO) or normally closed (NC) configuration for each channel. This provides users with an easy-to-configure interface, that can be tailored to their particular application.

The A2440 has a zero-cross detection circuit, which prevents the SSR from making a connection during the hybrid period when the AC load voltage is still actively switching between high and low state. This feature ensures that SSR operation is synchronized with the AC line, that prevents undesirable switching or arcing.

The A2440 is controlled by an opto-isolator, which provides a high degree of isolation between the input and output. This ensures that the input is protected from any negative influences, such as surges or spikes, which could damage or disrupt the control signal. An opto-isolator also provides excellent noise rejection performance, which reduces the risk of false triggering.

The A2440 is designed with a low-leakage construction, which ensures that there is very little energy lost during switching. This is critical for efficient operation, and also prevents the SSR from getting too hot during extended use. As a safety measure, the A2440 is also equipped with an insulated case, which prevents electric shocks if the device is touched when running.

In summary, the A2440 is an ideal SSR for industrial automation applications due to its ability to efficiently switch an AC voltage with no disruption in the load current. Its compact size and low-leakage design make it suitable for use in tight-fitting installations, while the opto-isolator ensures that the input is adequately protected from harmful influences. These features make the A2440 an ideal choice for applications in need of reliable AC load switching.

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