0.5 kva transformer primary 240 x 480 secondary 120/240 federal pacific Transformer wiring diagram 480 240 480v diagrams volt wire kva phase 120 single federal pacific secondary primary simple low dry
0.5 KVA Transformer Primary 240 x 480 Secondary 120/240 Federal Pacific
0.5 KVA Transformer Primary 240 x 480 Secondary 120/240 Federal Pacific