... stabilizer servo type Type: SVC-500VA -- SVC-90KVA available APPLICATION:Computer,Duplicator,Test equipment,lighting appliance,TV sets, Medicaltreatment equipment,Communication ... +/-3%Over voltage protection: 246V +/-4 V Frequency: 50Hz/60HzUasage area: computer, copy machine,testing equipments, lighting equipments, TV equipments, medical equipments ...