The present disclosure is directed to an electrosurgical system. The electrosurgical system includes an electrosurgical generator configured to output electrosurgical energy and including a receptacle having at least one mechanical interface. The system also includes an electrosurgical instrument adapted to connect to the electrosurgical generator and configured to deliver energy to tissue. Further, a plug is provided to engage the receptacle to electrically couple the electrosurgical instrument to the electrosurgical generator. The plug includes a terminal electrically coupled to the electrosurgical instrument and a prong electrically coupled to the terminal that includes a recess defined therein and is configured to receive the at least one mechanical interface. When the plug is disengaged from the receptacle, the at least one mechanical interface cooperates with the recess to uncouple the prong from the terminal.