CR4420S-20

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Current transducers are electronic devices used for sensing, monitoring, and measuring the amount of electrical power going through a specific circuit. They can be used to monitor and control power systems, to provide protection against overloads, and to detect fault conditions. There are several types of current transducers available, including single-phase, three-phase, and SMPS or switched-mode power supply (SMPS) designs. Some current transducers can be used for both AC and DC circuits.

The CR4420S-20 is a micro-scale current transducer, designed for the industrial market. It has an AC input range of 0 - 200 Volts and a DC input range of 0 - 25 Volts. The input / output impedance is 1V/A, and the device is rated for a maximum of 250 VAC. The CR4420S-20 is a single-phase device, capable of measuring a maximum of 10 Amps. The device is powered by a 5 VDC supply and requires a minimum of 5mA to operate.

The working principle of the CR4420S-20 current transducer is based on the Hall Effect. This is a phenomenon discovered in 1879 by Edwin Hall, in which a voltage is generated transverse to the flow of an electrical current in a conductor, when placed in a magnetic field. In this case, a permanent magnet is placed in close proximity to the lead frame of the transducer. A small electrical DC current passing through the lead frame creates a magnetic field, which interacts with the permanent magnet to generate a voltage. This voltage is proportional to the strength of the current passing through the lead frame.

The CR4420S-20 is mainly used in industry, especially in advanced manufacturing automation and power control applications. It has a low power consumption, and is able to detect even miniscule changes in current. For this reason, it is ideal for applications involving precise power monitoring and control. Its small size and light weight also make it an ideal choice for applications where space is at a premium. The device is also EMC compliant, making it suitable for applications in harsh industrial environments.

In summary, the CR4420S-20 current transducer is a micro-scale single-phase device, typically used for advanced manufacturing automation and power control applications. The device is based on the Hall Effect phenomenon, whereby a small electrical current passing through a lead frame generates a voltage that is proportional to the strength of the current. It is suitable for applications involving precise power monitoring and control, and its small size and light weight make it an ideal choice for applications in industrial environments.

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