Aspects herein are directed to an electrical system enclosure. The electrical system enclosure can include an electrical housing unit that includes one or more electrical components. The electrical system enclosure can further include a receptacle coupled to an outside surface associated with the electrical housing unit. The receptacle may be configured to engage a connector component of a cable. The electrical system enclosure can further include a contactor within the electrical housing unit. The contactor may be configured to energize based at least in part on the receptacle engaging the connector component. The electrical system enclosure may include an energy supply component configured to cause energy to be transmitted through the receptacle and the cable to a device outside of the electrical housing unit based on the contactor energizing.