SVP-916 is automatic over- and under- protector is suitable for single-phase AC 230V, 50/60Hz, rated working current 63A or less loads. It is mainly used for residential household box entry or over-, under- or over-current protection of distribution lines for single-phase electrical equipment. main feature is when the circuit has over- or under-, over-current problems, the product can cut off the power supply instantaneously to the electrical equipment from being damaged, besides,the protector can automatically turn on the power supply when the circuit returns to the normal. Color: white Material: plastic Functions: 1.Over- protection 2.Under- protection 3.Over-current protection 4.Automatic 5. display( measurement) 6.Current display (current measurement) Product Parameters: 1.Model number:SVP-916 2.Power supply:230VAC 50/60Hz 3.Max.Loading power: 1~63A Adjustable(default:63A) 4.Over- protection value range:221V~300~OFF(default:280V) Over- range:220V--299V(default:250V) Over- protection action time:0.1s~10s(default value:0.1s) 5.Under- protection value range:219V--150V --OFF(default:160V) Under- range:151V--220V (default:180V) Under- protection action time:0.1s~10s(default:0.1s) 6.Over-current adjustment range:1-40A (default:40A) Over-current action range:0.1~512 second (default:5.0s) 7. delay time:2s~120s(default:60s) 8.Power-on delay time:2s~10s(default:2s) 9.Power consumption: Less than 2W 10.Electric machinery life: 100,000 11.Installation:35mm DIN rail : When you first connect the product, you have to wait about 1 , ter the red light turn off, then the product will work. Package Contents: 1 x Surge 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.