Application/UsageThis product integrates over-voltage protection, under-voltage protection, over-current protection and integratedintelligent protector. When there is over-voltage, under-voltage and over-current solid barriers in the line, this product can instantly cut off the circuit, avoiding unnecessary damage to electrical equipment. Functions 1.Over-voltage protection2.Under-voltage protection3.Over-current protection4.Automatic recovery5.Voltage display(voltage measurement)6.Current display (current measurement) Product parameters1 Rated voltage: 220VAC 50Hz. 2 Rated current: 1A-63A adjustable 3 Over voltage action cut-off value: 240V-300VAC can be set (default 270VAC)4 Under voltage action cut-off value: 140V-200VAC can be set (default 1 70VAC)5 Over current action cut-off value: 63A6 Transmission delay time after power-on and power-off: 5-300S adjustable (default 5S)7 Boot delay time: 1-300S adjustable (default 5S)8 Reset delay time after overcurrent protection: 30-300s adjustable (default 30s)9 Product overcurrent delay time 6s (overcurrent time greater than this time will be confirmed as overcurrent and provideprotection)10 Own power consumption: less than or equal to 2W11 Electrical machinery life: greater than or equal to 100,000 times12 Dimensions: 51*35*60mm