The plug is sort attached to a molded section that follows the form of the chassis. But it all just pulls straight out like shown. Then inside you find a perfectly normal iec plug. It is not quite as neat as the original lead, but where I have them it is at the back and totally invisible.
Edit: I've just noticed in the photo that it clearly says 10a 250v on the phantom's own lead so surely the 15a plug is mis-specified?