MINI Size 27mm 230V AC 63A Din Rail Automatic Recovery Reconnect Over Under Voltage Relay Protective Breaker Voltage Protector The automatic recovery over voltage and under voltage protective device complies with modular design standards. the circuit boards of products adopt good quality electronic components with reliable performance. When the power situation is unstable. It's protection function will be automatically activated. once the voltage exceeds the limited range of products, it will automatically cut off so as to protect the safely of electrical equipment and persons. The device will re-supply in 30seconds, when the power returns to normal. The green indicator display, when the power is normal supply. The red indicator display, when the power over voltage or under voltage. Functions: 1.Over-voltage protection2.Under-voltage protection3.Automatic recoveryProduct Parameters: 1.Model number:SVP-911 2.Power supply:230VAC 50/60Hz3.Max.Loading power:63A4.Over-voltage action cut-off value :275V +/- 10V5.Normal-voltage value:160~275Vac6.Under-voltage action cut-off value :160Vac +/-10V7.Recovery time : 30s +/- 5s8.Power consumption : <2W9.Electric machinery life : 100,000 times10.Dimensions : 65*27*77mm 11.Installation:35mm DIN railNoted: When you first connect the product, you have to wait about 1 minute, after the red light turn off, then the product will work.