PS7200R-1A-A

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Solid State Relays are electrical switching devices that use low power control signals to control higher power circuits. The PS7200R-1A-A solid state relay (hereafter referred to as the relay) is designed to switch power at AC loads in the range of 0-500A.

Application Field

The PS7200R-1A-A solid state relay is ideal for applications where an AC switching relay is required for high power AC loads with precise control and high speed switching. This relay is capable of precise control and switching in a wide variety of industrial applications. Examples include process control, water treatment, materials handling, and food processing.

The relay is also suitable for various other critical applications in industrial settings such as lighting, heating, ventilation, and air-conditioning control. Additionally, the relay can be utilised in safe and hazardous locations, where it is suitable for Class I, Division 2 hazardous locations. This makes the relay suitable for hazardous industrial settings, such as oil, gas and mining facilities.

Working Principle

The PS7200R-1A-A solid state relay operates on the principle of an opto-isolated single channel half-bridge gate drive circuit. This circuit isolates the low power control signal from the higher power AC load and switches the relay on or off when an external control signal is applied.

The relay has a control circuit input of 0-15V DC and can switch an AC load up to 500A at a maximum voltage of 750V. The input circuit is opto-isolated from the output circuit to minimize noise interference. The unique design of the relay ensures a low-level of distortion on the output signal while simultaneously providing fast switching of the AC load.

The relay also offers protection against voltage surges, over-voltage, and over-current conditions. This protection is provided by an internal safety monitoring circuit that monitors the input and output signals to indicate any fault conditions. The safety monitoring circuit can also be set to shut down the relay automatically if any of these fault conditions occurs.

The robust construction of the relay also ensures that it can handle a variety of different input and output voltages, frequencies and currents with great accuracy and reliability. This makes the PS7200R-1A-A an ideal solution for industrial applications requiring precise control over AC loads.

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