The SmartPlug makes installations EASY. Even the clamping screws are color coded to the corresponding wire colors. This is the clamping screw for the BLACK/HOT wire.
In this photo we are looking at the side of the 30A shore power inlet.
DISCLAIMER: If you are at all uncomfortable with AC wiring, and do not understand the differences between HOT, NEUTRAL and GROUND, please hire a competent marine electrician to do this install. AC wiring and wiring mistakes can KILL YOU!!!!!!