Защитное устройство

Power Protection Device Main Function 1.Voltage display: display the current power supply voltage value. 2.High /low voltage protection: cut off the power supply when the value of the voltage beyond the setting value. 3.Loss phase protection: cut off the power supply when three-phase source phase loss occurs. 4.Phase sequence protection: cut off the power supply when three-phase source phase sequence errors occur. 5.Calculagraph and count: record the counts of equipment start and accumulative the running time. 6.Faulty record: record the fault time and accumulative time. Main Technique Index 1. Power supply voltage: three-phase 280V 450V AC 2. Voltage measuring precision: ±1% 3. Output contact capability: 2A/250V AC 4. Operating environment: Temperature -20°C +70°C,Humidity£ 85%, no moist 5. Frequency: 50/60Hz 6. Weight: 85 gram 7. Overall dimensions: (length×width× high): 48*48*90mm 8. Data keeping time: 10 years 9. Max count capability: 999999 10. Max calculagraph capability: 9999 hours and 59 minutes 11. Max count speed: 5 times per second 12. Accumulative calculagraph error: ≤0.01%