The main difference in England is that the transformers are almost always 3-phase.
When I was involved in commercial supplies, the 400 V three phase distribution boards simply had positions 1, 4, 7 etc on red, 2, 5, 8 etc on yellow, and 3, 6, 9 etc on blue. The positions were filled with either single breakers for single phase loads, or 3 phase breakers that took 3 adjacent slots. If you had mainly single phase loads, working from one end meant that the load was spread.
In the USA, 240 V with 120 V on each leg to ground is also common, so two phase distribution boards are also available, where odd numbered circuits are on one leg and even numbered are on the other leg.
2 phase, or centre tapped to ground, is hardly ever used in the UK, except for portable power tools uses outside, where 110V centre tapped is used. That is only 55 V to ground, to minimise the danger of electric shocks.