The 3-Phase Voltage and Current Relay Protector is designed for reliable electrical monitoring and protection. This device features adjustable over-voltage and under-voltage , ensuring your electrical systems operate safely within specified limits. With support for both 220V and 380V configurations, it provides clear phase monitoring for enhanced visibility. The adjustable over-current protection ranges from 3A to 63A, safeguarding your equipment from potential damage. Additional features include asymmetry protection and phase sequence protection, making it an essential tool for maintaining electrical safety. Manual calibration options allow for precise adjustments, ensuring optimal performance tailored to your specific requirements. Ideal for installation, this relay protector is a must-have for any professional electrical setup.