My company is venturing into 3-phase power distribution for the IT/Telecom industries in Europe and I need to know the 'standard' 3-phase voltages and connectors used.
We're designing both Delta(3pins plus ground) and Wye(4 pins plus ground) and are trying to verify the most common voltages and input connectors used.
Currently the thought is for the Delta to design for 250V with use of the IEC 309 blue connectors with the ground at position 9 and for the Wye, 277-400V with IEC 309 red connectors with the ground at position 6.
Are these choices correct for a majority of industrial IT/Telecom datacenter infrastructures (power grid)?
