We are interested in to by 15 pieces of 500VA electrical toroidal transformer for inverter transformer solar. how much is a 240v 45 - 0 - 45v 600VA Toroidal Transformer?model : C500VARated Power : 500VA(Max)Input Voltage : AC0-19+0-19VOutput Voltage : AC0-38+0-38VRated current : 0.5A 2.27A(Max)Rated frequency : 50Hz 60HzNet weight : 5.2KGvolume : 143*50*67mm