Features: 1LCD display supports clear screen introduction, which can make real-time display to voltage and current. 2It has 4 status indicators including power indicator, overvoltage indicator, undervoltage indicator and overcurrent indicator. 3Setting button can adjust the value of limit voltage and current, which can work in high efficiency. 4For intelligent chip control, once the line is under voltage or over current, it will automatically cut off quickly with high recognition and no accidental disconnection. 5After the voltage returns to normal, it will automatically reset and power on after 0.5S-5S, which is reliable and worry free. 6Adjustable over / under voltage and current values, the voltage protector supports flexible adjustment and easy management. 7In 2P size, supporting 35MM standard rail installation, such current protector can be installed side by side with circuit breaker. 8The shell is made of ABS flame retardant material, which has high strength and strong impact resistance, anti- aging for long service life.Item Type: Voltage ProtectorProduct Model: BEMS5-40AWorking Voltage: 230VWorking Frequency: 50 / 60HzCurrent Size: 40AOvervoltage Adjustable Range: AC230V-300VUndervoltage Adjustable Range: AC160V-210VOvercurrent Adjustable Range: 1A-40A self-settingReset Adjustable Time Range: 1 second-90 secondsDelay Reset Time: 0.5S-5SSelf Power Consumption: 2WPrompt Method: LCDWiring Method: Bottom-in and top-outProduct Dimensions: Approx. 85 x 50 x 37mm / 3.35 x 1.97 x 1.46in1 x Voltage Protector1 x English Instruction Manual