201A-AU

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201A-AU is one of the most widely used devices for monitoring current and voltage. It is distinguished by its reliable relay output and can be used in a variety of industrial applications. In this article, we will discuss the application field and working principle of the 201A-AU device.The 201A-AU device is often used to monitor and protect electrical circuits from over-current and overload. It is designed to detect AC and DC leakage, ground fault protection and surge protection. This device is also used to help safeguard equipment and personnel from damage or injury due to short circuits, over-currents, and over-voltages. It is suitable for use in a number of industrial applications such as manufacturing, mining, or in the energy industry.The 201A-AU device consists of a relay output, voltage input terminals, current input terminals and control unit. The relay output is linked to the power line and can be used to open and close the power circuit. The voltage input terminals are used to provide the input voltage for the device and are connected to an AC or DC source. The current input terminals measure the current levels in the electrical circuit and can be used to detect any fluctuations. The control unit receives the inputs from the voltage and current terminals and activates the relay by providing a signal.The working principle of the 201A-AU device is relatively simple. When the current and voltage in the electrical circuit exceeds or drops below the preset levels, the 201A-AU device triggers the relay to open or close the power circuit, thus protecting the circuit and its components. It is also designed to detect power surges and ground faults. If a surge or fault is detected, the device immediately shuts down the power, protecting the circuit and its components from damage.In summary, the 201A-AU device is a useful tool for monitoring current and voltage in various industrial applications. It is designed with precision to detect both AC and DC leakage, ground fault and surge protection. It has a reliable relay output and is used to protect electrical circuits from over current and overload.

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