This 63A three-phase voltage protection relay safeguards your 380V AC electrical equipment by automatically disconnecting power during hazardous voltage conditions. It features comprehensive protection against over-voltage, under-voltage, phase failure, phase sequence reversal, and three-phase imbalance. Key specifications include adjustable protection thresholds and delay timers, a clear LCD for real-time voltage monitoring, and easy 35mm DIN rail mounting. Constructed from durable PC plastic, it ensures reliable operation in industrial and commercial settings. **Product Features:** * **Complete Protection:** Integrates over-voltage, under-voltage, phase failure, reverse phase, and three-phase unbalance protection. * **Fully Adjustable:** Customize trip points (over-voltage: 230-300V, under-voltage: 140-210V) and delay times (0.1-30s) to suit your application. * **Clear Monitoring:** Built-in LCD screen displays real-time three-phase voltage readings. * **Automatic Operation:** Cuts power instantly during a fault and restores it automatically when voltage normalizes. * **Robust Design:** Rated for up to 63A, with a durable PC plastic housing for long-term reliability. * **Easy Installation:** Simple snap-on mounting to a standard 35mm DIN rail. **Package Includes:** * 1 x Three-Phase Voltage Protection Relay