Ravi Electricals supplies 28Amps Single Phase Open Type Variable Transformer. Ravi Electricals is an ISO 9001:2008 certified company. Ravi Electricals is the manufacturer of continuously variable voltage auto transformer, variac auto transformer, variable transformer, variac transformer, voltage regulator, dimmer etc. 28Amps Single Phase Open Type Variable Transformer has been available in the motorized model. 28Amps Single Phase Open Type Variable Transformer has the input of 240V AC 50/60Hz and the output voltage of 0-270V. The weight of this single phase open type variable transformer is 26.700 kg. It is available in the model no. Of 28FM-1.