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Solid State Relays (SSRs) are electronic devices that offer the advantages of solid-state switching in the form of a four-terminal electromechanical relay. The CPC1331GRTR is a type of SSR specifically designed to be used in industrial circuits for switching thermocouple and RTD type signals. This type of SSR is a semiconductor device that provides analog control to enable current or voltage signals to be switched on or off. It features low on-state resistance, high off-state current leakage, and high temperature stability.

Application Field

The CPC1331GRTR solid state relay is mainly used in industrial applications for controlling signals from various types of sensors such as thermocouples and RTDs. This type of SSR is also suitable for controlling pid controllers, motor drives, and other applications that require the control of low current signals. It can be used to switch with both AC and DC signals, making it highly versatile in various industrial applications. The CPC1331GRTR is also suitable for heaters with high wattages and large inductive loads.

Working Principle

The CPC1331GRTR works on a four-terminal principle. In this type of SSR, the load and control terminals are connected to the signal supply via a separate pair of terminals. This is done in order to prevent the current through the load from affecting the signal. The ON state for this type of SSR is provided by a small power signal that is connected to the control terminals. When the control signal is activated, it triggers the thyristor to conduct, which in turn energizes the load.

In addition, this type of SSR is also designed to have a built-in snubber circuit that helps to protect the device from sudden voltage spikes. This circuit helps to limit the peak voltage across the device and reduce the risk of electrical damage. It also ensures that the SSR will switch off quickly, improving its overall reliability in various industrial applications.

The CPC1331GRTR is a reliable and efficient SSR for applications where the switching of low current signals is required. It is an economical choice for various industrial applications and is able to accurately control low level signals. Additionally, the built-in snubber circuit provides extra protection to the device from voltage bursts and helps to improve the SSR’s overall reliability.

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