Far as one knows, and am by no means an expert; the WS5425 series were not sold in the United States. Just because luxury yacht is being over-hauled in the States, does not mean the original fitting out was done there. The units could have been purchased anywhere else, and fitted in.
WSE 5425 could be wired several different ways, and there was also a version just for marine use (such as the one in the auction).
Performance specifications
Load ratio: 5 kg
Drum volume: 48 l
Spin speed: 1200 rpm
g-factor: 385
Control system
Electronic controls Multitronic MC 13 with 13 fixed programmes
Programme modification possible
Additional user-programmable functions (PFT)
Programme sequence display
Temperature and countdown indicators
Pushbutton for door release
Drive Digitally controlled d.c. motor
Features
Special heater elements
Hot and cold water connection
Coin mechanism connection option
Heating
Electric
Dispensing technology - Three compartment soap drawer in facia
Wash technology
Scoop-and-ladle technology
Gentle start mechanism
Interim spin
Design
Freestanding washer-extractor
White enamelled casing
Stainless steel front panel available (dealer fit option)
Stainless steel suds container and drum
Extruded drum perforations
Drain pump with non-kinking hose
Wide door opening angle
Recycling-friendly design with labelled virgin polymers
3 variants including 230V version with 13A plug
Marine version with integrated transformer for 3-phase 3 wire connection and junction box to accept armoured cable
Dimensions:
H x W x D: 85 x 59.5 x 71.5 cm
Note the marine version must be wired into an isolator.
Possible electircal connections:
WSE5425
440v 3 phase power without neutral 60hz
440v 3 phase power without neutral 50hz
230v 3 phase power without neutral 60hz
400v 2 phase power 50hz
Other connections are possible for single and two phase machines, but the washers in question are three phase, so it does not apply. However in case you are wondering, those machines run on 50hz at either 400v/2 phase/neutral/2x15amp fuse, or 230v-240v/1 phase/neutral/30amp UK fuse).
If at all serious about these units, request a clear photograph of the electrial plate found on all Miele units. You will be able to see the electrical requriments from this information, as well as the serial number.
Personally,though interesting prospect as it may be, I shouldn't bother love. Three phase power is not something easily run into most residential homes, and even if one did, you'd have a washer with only 13 set programs. Modifying requires a Miele tech, and if the units were never sold in the United States, they may not have the means to do the reprogramming.
Miele is introducing large "commerical" units for home use later this year. They won't be as inexpensive as these units may go for, but certianly will be after factoring in the cost of rewiring/bringing in three phase power.
L.