Functions: 1. Over-voltage protection; 2. Under-voltage protection; 3. Over-current protection; 4. Automatic ; 5. Voltage display(voltage measurement); 6. Current display (current measurement); 7. Installation: 35mm DIN rail Product advantages: 1. Strong adaptability, to meet the application requirements of various occasions, and can also operate in harsh environments. 2. The light indicates the voltage status at a . When overvoltage or undervoltage, the red light is on. In normal voltage state, the green light is on. Intuitive display of voltage status Product : (1). Press and hold the SET button for 5 seconds to enter the setting state. (2). Short press the SET button, the overvoltage light is on, it can be set to 240V-300V, and the default is 270V. (3). Short press the SET button, the undervoltage light is on, it can be set to 140V-210V, and the default is 170V (4). Short press the SET button, the current light is on, it can be set to 1A-40/63A, the default is 40A/63A. (5). Short press the SET button, the delay can be adjusted from 1 second to 300 seconds. (6). Fault query, query 5 groups of faults Technical data: 1.Rated supply voltage:AC 220V 2.Operation volatge:AC 80-400V(single phase) 3.Rated frequency:50/60HZ 4.Over Electric current setting range:1-63A 5.Overvoltage setting range:230-300V 6.Undervoltage setting range:210-140V 7.Rated current: 63A 8.Overvoltage and Undervoltage trip delay time:0.5s 9.Reset / delay time:1-600s 10.Voltage measurement accuracy:3%(not exceeding 3% of the overall range) 11.Rated insulation voltage:400V 12.Output contact:1NO 13.Electrical life:100000 14.Mechanical life:1000000 15.Protection degree:IP20 16.Pollution degree:3 17.Operating temperature:-50-55 18.Humidity:50% at 40 (without condensation) 19.Storage temperature:-30-70 Type: Voltage relay Model Number: SVP-726 Voltage Protector: Over and Under Display: Dual Display Voltage and Current Protection Value: Adjustable Voltage and Current color:White Material:PC size:90 x 65 x 53mm Package Contents: 1 x Adjustable Over Voltage Protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.