Conversion or addapter for Three Phase Industrial DIN RAIL Power Supply to run Single Phase

Hi, We purchased a Three Phase Industrial DIN RAIL Power Supply see attached and I need to run it on Single Phase. Need options to convert the unit (eg open and we can source parts for inline power) or build an adaptor of sorts. The unit need to be able to be connected to a Single phase 240v power source. Incorrect version was ordered and it is price prohibitive to return back to supplier. Must be able to chat in English on Skype to discuss plan. Unit is new I can take photos of all the insides if required