Bosch SHE53T52UC/01 Installation Instructions Manual page 14

Mount the dishwasher electrical supply junction box (A) and dedicated
receptacle in an accessible cabinet adjacent to the dishwasher (do not
mount the junction box or receptacle behind the dishwasher),
Note: screws are not provided for mounting electrical supply junction
box.
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Check all electrical connections to make sure they are secure and then
reattach the junction box cover,
Plug the end of the supply cord into the back of the dishwasher as shown
until it clicks,
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