Specifications: Material: PC plastic + copper Rated voltage: 230VAC 50/60Hz Insulation voltage: 400V Rated current: 1-40A adjustable (default 40A) Overvoltage protection value range: 230V-300V adjustable (default 270V) Overvoltage delay recovery time: 1-300 seconds adjustable (default value 30 seconds) Undervoltage protection value range: 140V-210V adjustable (default value 170V) Undervoltage delay recovery time: 1-300 seconds adjustable (default value 30 seconds) Overcurrent adjustment range: 1-40A (default value 40A) Overcurrent delay recovery time: 1-300 seconds adjustable (default value 30 seconds) Action time: 2 seconds by default Power consumption: ≤2W Electrical mechanical life: ≥4000 times Dimensions: 85*36*66mm Installation method: 35mm DIN rail Working environment: temperature -25°C-+40°C Humidity:＜90% Altitude: no more than 2000m Packing List: 1 * Overvoltage and undervoltage protector 1 * Manual Precautions 1.The line conductor should meet the relevant current standard value, and the load current should not be greater than the maximum protection current value of the protector. 2.The neutral line N cannot be wrongly connected and must be firm. The neutral line N of this protector is directly connected without disconnection function. 3.After the product is powered on, please do not touch the live parts to avoid electric shock. 4.After the overcurrent exceeds 5 times within the specified time, the protector lock will not automatically restore the power supply, you must manually press "SET" to unlock to restore the power supply, this can effectively protect the equipment from being damaged due to frequent opening and closing caused by untimely release of overcurrent.