cpal's data may outdate mine, but the attached is quoyed from UL-749 (Standards)
UL Standard UL-749
UL 749
Household Dishwashers
7.3 Installation instructions
7.3.1A Where the installation instructions for a built-in dishwasher specifies
that the appliance is able to be connected by means of a power-supply cord
not already attached to the appliance by the manufacturer, the instructions
shall specify that a power-supply cord kit marked for use with dishwashers
shall be used. The cord kit shall comply wi th Clause 25.2A. The part or model
number of the power-supply cord kit shall be included in the appliance
installation instructions.
7.3.2 The installation instructions provided with a cord-connected undercounter appliance shall include
the following instructions or equivalent information:
a) the power-supply receptacle for the appliance shall be installed in a cabinet or on a wall
adjacent to the undercounter space in which the appliance is to be installed;
b) there shall be an opening through the partition between the compartments specified in (a) that
is large enough for the attachment plug to pass through. The longest dimension of the opening
shall not be more than 38 mm;
c) the edges of the opening specified in (b) shall, if the partition is wood, be smooth and rounded,
or, if the partition is metal, be covered with an edge protector provided for this purpose b y the
manufacturer; and
d) care shall be exercised, when the appliance is installed or removed, to reduce the likelihood of
damage to the power-supply cord.