CR4395-EH-120-330-A-CD-ELR-I

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CR4395-EH-120-330-A-CD-ELR-I monitors current and voltage and is classified as a relay output. These relays are commonly used in various applications, from home appliances such as stoves and refrigerators to more complex industrial machinery. The working principle of this type of relay is simple: When currents or voltages exceed a set threshold, the relay output is activated.

CR4395-EH-120-330-A-CD-ELR-I is a single-phase monitoring relay that features an adjustable threshold and various timing parameters. It can be used to monitor current, voltage, frequency, phase failure, and trip test. It has a wide range of applications for protection and automation of the electrical system. It is used to protect various equipment from over-current, under-current, over-voltage, and under-voltage. It can also detect a ground fault and a single-phase to ground fault, making it an ideal protection device for electrical systems.

The basic working principle of CR4395-EH-120-330-A-CD-ELR-I is to detect the current or voltage that exceeds the preset values and then switch the relay output. The relay output consists of a normally open contact and a normally closed contact, which can be used to integrate with the logic circuit or switch on/off the motor. The relays are pre-granted to specific threshold levels and these levels can be adjusted via external control knobs.

Calibrations of the monitoring relay are based on an adjustable threshold. For current, the adjustable range can be set up from 0.30A to 30.00A in an accuracy range of 0.05A to 0.5A. For voltage, the adjustable range is from 4V to 265V with an accuracy range from 0.1V to 0.2V respectively. The calibration of the frequency is also adjustable from 45Hz to 65Hz with an accuracy of 0.05Hz. It also has additional features such as trip time and trip delay, which are adjustable up to 9.9 seconds.

When the voltage or current reaches the preset level, the internal electronic circuitry inside the relay will detect the value and switch the relay output. The connection between the relay and the output can be either direct or indirect depending on the requirements of the application. If the logic output is required, the relay can be connected to a logic circuit such as a PLC. The relay can also be directly connected to a motor, switch, or other type of device that needs to be controlled.

CR4395-EH-120-330-A-CD-ELR-I is an ideal solution for a variety of applications. It can be used to provide the necessary protection for the electrical system. It can also be used in industrial automation and home appliance applications where it can detect voltage changes and switch on/off switches or motors. It is reliable and easy to use, making it a popular choice for a variety of applications.

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