1. AC rated voltage: AC 230V 50/60Hz 2. Current: 40/63/80A 3. Disconnection capacity: over-voltage 221-300V, under-voltage 150-219V (adjustable) 4. Over-voltage protection value range: 221-300V 5. Under-voltage protection value range: 219-150V 6. Size: about 8.5x4.8x3.6cm 7. Weight: about 180g Features: 1. Over-voltage protection 2. Under-voltage protection 3. Voltage display (voltage measurement) 4. The over-voltage protection value is adjustable 5. Adjustable over-voltage recovery value 6. The over-voltage protection action time is adjustable 7. Adjustable under-voltage protection value 8. The under-voltage recovery value is adjustable 9. The action time of under-voltage protection is adjustable 10. The fault recovery delay time is adjustable 11. Adjustable delay time after power-on 12. Reset method selection 13. Troubleshooting 14. Factory reset