... : SVC-500VA -- SVC-90KVA availableAPPLICATION:Computer,Duplicator,Test equipment,lighting appliance,TV sets, Medicaltreatment equipment,Communication system etc.MAIN FUNCTION ... +/-4 VFrequency: 50Hz/60HzUasage area: computer, copy machine,testing equipments, lighting equipments, TV equipments, medical equipments, communicating equipments, industrial automation etc. SVC Voltage stabilizer servo type