It has a single primary winding for UK mains 230Vac and two separate secondary windings of 45V each.  The transformer has dimensions of approx. 167mm x71mm.  A circular metal mounting/restraining plate and bolt is included in the box.

The included P&P is good for delivery to anywhere in the UK except remote areas, islands or N.I.  Please ask before buying if you live in one of those areas.

Thanks for looking.