63A 80A DIN Rail Adjustable Over Under Voltage Protective Device - Current Features: 1. LCD display with backlight, can display total active energy (kWh), real-time current (A), voltage (V), active power (W). 2. LCD display kWh (4 digits + 1 decimal), bi-directional total active energy measurement, reverse active energy measured in the total active energy. 3. Product self-design includes lighting protection function. 4. Overvoltage protection, undervoltage protection, and over-current protection with selectable auto-reclosing or manual reclosing mode. 5. In case of over-voltage fault, under-voltage fault, or overcurrent fault in a single-phase line, the product can power off the line and automatically restore connection after a timed delay when voltage returns to normal. 6. In case of transient overvoltage in the line, the product can protect equipment from false operation. 7. If the line experiences unstable voltage or sudden power-off and power-on due to loose connection or other faults, the product will disconnect the line. 8. When fault voltage reaches peak levels, the product itself will not be damaged. 9. Under over-current protection mode, malignant load protection (pure resistive load limit) can be selected, suitable for apartment and student dormitory electrical safety. 10. Circuit output cycle switch on/off mode is selectable. 11. LED indication for overvoltage protection, undervoltage protection, and over-current protection. 12. Diversified protection design allows deactivation of overvoltage protection, undervoltage protection, or over-current protection at any time. Specifications: Product Name: Over Under Voltage Protective Device Type: 63A / 80A (Optional) Model Number: SVP-917 Material: Metal Plastic Size: 100 x 36 x 67.5 mm / 3.94 x 1.42 x 2.66 in Input Working Voltage: 85~300V Overvoltage Protection Value: 85-300V (Default 270V) Undervoltage Protection Value: 85-300V (Default 170V) Overcurrent Protection Value: 1-63A (Default 40A); 1-80A (Default 60A, Special Order) Rated Frequency: 50/60Hz Delay in Switch On After Power Off: 2-255s (Default 2s) Voltage Circuit Power Consumption: 1W Current Circuit Power Consumption: 1VA Active Energy Display Range: 0~9999.9kWh Voltage/Current/Active Power Accuracy: ±0.5% Active Energy Accuracy: ±1% (IEC62053-21) Operating Temperature: -25°C to +70°C Storage Temperature: -40°C to +80°C Relative Humidity: 85% Altitude: 2500m Electromagnetic Environment: E2 Mechanical Life: 100,000 cycles Package Included: 1 x Over Under Voltage Protective Device