Relay type, Single phase, Meter display,aluminum coil, ... of goods:Automatic /AC/single phase/avr/electrical/relay type/servo motor/SVC/energy saving/ Electrical /Voltage ... Single phase 7. LED light : In use /Unusual/Delaying 8. Delay time ; 6S/3min 9. Protection: Hign voltage, low voltage, high ... center ) ,office computer, laboratory and factory precision instruments.12. Certification:CE,SONCAP,OEM Model ...