Make sure that your 240 V is really 240 V; at my house I have 120/208, so I am just running 2 13.5 THS S9 Antminers each on a separate 20 amp 120 v circuit, each with a 1600 watt power supply.  I am also running 6 S9 Antminers on a 50 amp 240 V oven circuit from a 40 amp PDU, I believe the miners are pulling around 5.5 A each.  On a 208 circuit the miners will pull 6.3 A.  The three car garage where I have 6 miners in gets really warm during the day, so you have to really think about ventilation.  Finksy sells power kits for bitcoin miners, I would highly recommend his equipment. There is a thread from him here https://bitcointalk.org/index.php?topic=966135.0.  I did not see on the Bitmain site where T9 is for sale currently, maybe I missed it.  The S9 is sold out and won't be shipping until July 5th.  I have 13 more S9s coming in Friday, just waiting on the electrician to install (2) 3 phase 60 amp circuits at the shop.  If he doesn't do it soon, I may sell these S9s and order more from the July 5th batch.